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How To Buy Opals On The Internet
如何在互聯網上購買蛋白石
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6 Tips For Buying Opals Buying Guide With Pictures  Opal AuctionsYou’ve found yourself in the right spot as the first step in buying opals online is to educate yourself with opal information. Opal Lovers all over the world have taken to buying Opals online as you can buy direct from the source.

It is best to find a site that has all types of sellers from opal miners in Australia to opal wholesalers and international miners or wholesalers. Many buyers have stated that buying opals on the internet is the best because sellers all over the world have to compete against each other in offering their opals for sale in a controlled online environment.

Opal miners have to price against other sellers so if a miner overprices his opals the will not sell. This is the main advantage for our buyers as sellers compete against each other driving prices down, something that single sellers online sites do not offer.

Tips To Buy Opals In The Internet

  • Learn about the different types of opals as the value of an opal depends not only on its brightness but where it comes from. Start Learning here.
  • Understand the difference between triplets, doublets and solid opals as the first two are enhanced to show brighter colours. They should sell for lower prices than solid opals.
  • Always request a picture of an opal on a hand or a neutral image as a black background will enhance the colour. Many crystal and Ethiopian opals look better on a black background.
  • With Black opals ask for their body tone and brightness rating.
  • Most opal rough photos are taken when the opal is wet. Water enhances the brightness of the colour but it should give an accurate idea of what the stone will look like when it is polished. If the rough boulder opal has been split it should not need water to display its colour because the split is usually very clean.
  • Ethiopian rough is normally dry when pictures are taken as it is Hydroplane Opal. This means it absorbs moisture.

Base Body Tone Guide

The base body tone guide is the best kept secret for buying opals on the internet, as most internet sellers give a fairly accurate description of the stones body tone that they are selling.

The opal association is marketing a body tone guide with opal stones and doublets so all buyers and sellers can have a uniform guide to gauge opal. These will help buyers compare opals between sellers. You should always buy off a seller who guarantees his product and grading so if you disagree you can return it.

The base body tone refers to the darkness or lightness of the opal ignoring the play of colour and brightness of the stone. The base colour can only be determined by looking down on the top of the stone and ignoring the material on the back of the stone. Only those stones ranking N1 to N4 are considered black opals. The opal price is determined by body tone, brightness, colour, play of colour, size and allowing for faults and imperfections.

See an example of an opal buying guide below:

Opal Buying Guide - base body tone guide

Brightness

The brightness of a stone is one of the most important factors in a stones beauty and value.

On the Australian opal fields you don’t hear the words” fire” used when miners talk about how bright a stone is. The term is however used a lot on the internet to describe a stone’s brightness, and to gauge opal brightness evenly over different stones.

Brightness Scale: 1 Faint, 2 Dull, 3 Bright, 4 Very Bright, 5 Brilliant - Gem Quality This is the brightness chart you will see on most internet auctions with 5 being the brightest. Currently the Opal association is working on a chart which will have seven levels of brightness with number ONE being the BRIGHTEST. Check on listings to make sure what chart is being used.

brightness chart for opals

Opal Colors are affected by Light! Adjust Your Monitor for Accurate Colors + Contrast!

Your Opal will look different in different kinds of lighting. What color are seen, in what shape or pattern and from which viewing angles depends, in part, upon the viewing light used. Sunlight and tungsten bulbs and warm bulbs lighting will tend to bring out more warm tone colours - reds, oranges, yellows magentas and purples. ‘Cooler Light’, like viewing your Opal in the shade, will tend to bring out the cooler greens and blues. Light source. For viewing we suggest 12” to 16” from a bright tungsten light bulb. The best method is to have your back to a window on a sunny day with the sunlight coming over your shoulder.

Opal Sizes

Opal sizes are listed in millimetres (25.4 mm = 1 inch) and weights are listed in carats - just like all other gemstones and the jewelry mountings for them A calibrated shape gemstone should fit most jewelry mountings designed for those dimensions. An opal that is within 0.5 to 1 mm of a calibrated size may acceptably fit into many calibrated mountings. Calibrated shape opals typically cost 15% to 50% more than a freeform shape opal due to the wastage of the opal when cut. A freeform or larger size opal can be cut to a smaller size by an experienced cutter. Or you can have a custom jewelry mounting made for your unique opal, often for less expense than you might expect. Thickness of the opal is a major factor in the carat weight of a precious opal gemstone - but an opal that is unusually thick will be considered less valuable as it may have to have excess weight removed to fit in a jewellery piece.

Play of Color

The very best precious opals have play-of-color across the entire gemstone when rotated. Most precious opals do not have play-of-color across 100% of the gem and are still stunning. Every natural precious opal gemstone is unique. Some precious opals have a flash, a Harlequin or other unusual pattern, rainbows, ribbons of color or many variations that are both beautiful and stunning while not covering 100% of the opal’s face. If an opal doesn’t have Play-Of-Color, it isn’t precious opal. Sometimes an area of the opal will have a Play-Of-Color flash from a particular viewing angle, while another area of the opal flashes best at a different viewing angle. You may have to rotate or pivot the Gem Stone and/or change positions between you, the opal and the viewing light to see Play-Of-Color from a particular area of many opal Gem Stones. These stone are directional and are usually best suited to a pendant. The most expensive opals have at least some wonderful Play-of-Color from most viewing angles. Sometimes an opal is at its best if lighted from the side or from slightly ‘above’ which would make it an ideal opal to use for a pendant. Some opals are at their best and brightest ‘face up’ - when the viewer has the light source over her shoulder to view the opal face-on like a ring stone. Some of these patterns can EXPLODE and look stunning.

Visible Opal Flaws

Listed here are some of the natural imperfections that can reduce the value of your precious opal. If you can accept these natural imperfections, you may be able to purchase an opal you otherwise couldn’t afford. And, the ‘natural imperfections’ are proof that the opal is not man made!

A whitish to cream color area visible within your opal’s surface is often called ‘clay’ or ‘silk’ or ‘sand’, small bits of clay present when the opal was forming.

A ‘Matrix’ opal that has precious opal surrounded by visible rock or clay it formed within will be less valuable than a solid opal or most quality constructed doublets.

Potch lines across the colour face are acceptable provided they aren’t contrasting with the stones appearance. Most black gems have some potch in the face which doesn’t stand out but grey potch on a black stone would so it would decrease its value.

Sometimes a line inside the opal is just how the opal naturally formed and not a crack or flaw. Hold it close to a lamp shape to see it you can see a fractured reflection. If large areas of your opal have no precious Play-Of-Color (sometimes called ‘potch’), that will reduce the value of the opal. If there are visible scratches on the surface of the opal, its value will increase after the opal has been professionally polished to remove them. Cracks that go through the thickness of the opal’s surface will reduce its value. To save a damaged valuable precious opal keepsake, cracks can sometimes be repaired and no longer be visible to the unaided eye. Any seller of precious opals should always tell the customer if an opal has been repaired, stabilized or otherwise treated.

Opal flaw or inclusion

Opal Photography

It must be remembered that opal reflects light and digital cameras are not built to capture the amazing patterns and colour changes in opal.

A simple experiment is to place a stone on the floor by a doorway in natural sunlight, and move the stone back inside taking several photos along the way. You will most likely find that one photo looks amazing as if it has been enhanced.

Depending on the quality of photographic equipment and lighting sources, there will always be some variation between a digital photo and viewing a stone with a naked eye.

Sellers on are expected to produce consistent photos that are representative of the opal being sold. Viewing an item that has a video can be a good way to reveal the many different faces of a good quality opal, and see the movement of colour that is not necessarily visible from all angles.

The experienced buyer will know to take all information into account, including the N tone rating, brightness, shape, dimensions and of course price.

The most common complaint is for blue opals. Most cameras capture the mauve in the stone which the naked eye can’t see. So if you see a mauve stone remember it’s most likely a blue stone.

Pastel colours seem to come out true to form. With Ethiopian opal the red is easy to capture and it will not be as bright in the hand.

If a seller guarantees his stock there is no advantage in over enhancing the pictures as he would have to return too much stock.

Many sellers use a black background as the camera captures the opalat its best. Always ask for a photo taken in the hand. You can see the two stones below look better in the hand shot which is more natural. The last picture has been enhanced so you notice how the hand looks red and less natural. If you see a hand looking red you know the picture has been enhanced.

Viewing an Opal

With the opal in your hands, viewing in direct sunlight or 12”-16” from a bright tungsten or halogen light source:

Rock the Opal side-to-side and top-to-bottom - pivot the Opal gemstone - rotate it 90 degrees clockwise and repeat, - then again.

Change the angle between the light source, the opal and your eyes and repeat. Rock the opal side to side or top to bottom to change the viewing angle.

Harlequin Patterns

Harlequin opal is the most sought after pattern in opal due to its rarity and beauty.

On the Gemological Institute of America (GIA) website, it states: “Harlequin or mosaic - broad, angular, close-set patches of color”.

Originally rounded or floral shapes were not called harlequin but this is now common practice.

On some unscrupulous internet sites many stones are listed as harlequin as the seller believes this will increase its value. Many of these stones would not be called harlequin on the opal fields, however they can still be beautiful and valuable in their own right. It is always important to buy from an opal expert.

In my 20 years experience of selling thousands of stones, I have only had three opals which I consider to contain a true harlequin pattern.

Harlequin opal pattern

Doublet or Natural Stone?

It is difficult to determine if an opal is a doublet when it is set in jewellery. Only by removing the stone from the jewellery can you be certain.

Take a 10 powered loop or magnifying glass to the side of the stone. As glue doesn’t polish you will see a gap between the crystal and backing so you know it’s a doublet.

Alternatively, if you have a digital camera you can take a photo of the side of the stone and enlarge the photo on your computer. If there has been glue used it will be easy to see. See our article on doublets and triplets to learn more.

Inclusion or Fracture?

Some times stones have natural inclusions that look like fractures. The best way to determine if a stone is fractured is to hold the stone up to a base of a lamp shade and roll the stone in your fingers keeping the stone in the light and not the shaded area. If there is a fracture you will see the light reflect off the fracture like a chip in your windscreen.

Natural or Synthetic Stone?

Some synthetic or imitation opal can confuse customers.

Things to watch for:

  • Usually they have no inclusions or potch backing behind them
  • The pattern appears to be even through the stone which is rare except for top gems.
  • If viewed from the side the line of colour is in the lower areas.
  • Unnatural look and fire to them.

Synthetic opal are sometimes used in triplets which are much harder to spot. Generally they are very bright with a regular pattern that looks too constant to be natural. It is best to become familiar with a few man made opals (usually advertised as synthetic or man made) so it is easier to recognize them.

6 Tips To Buying Opals Buying Guide With Pictures  Opal Auctions

Andamooka Matrix

Andamooka Matrix is a natural white opal matrix found in Andamooka, South Australia. It has been treated to look like expensive black opal. The treatment is permanent but if you reshape or cut it you will have to re-treat it.

Some of this material is called concert which is more porous than the gem matrix. It is hard to get a good polish on it as it has pores. You can use a resin like liquid glass - or in Australia we use HX3 made by Shell. This is an epoxy that soaks in to the stone and gives a good polish. The colours and fire are amazing.

On the field they call this concert which is a horrible name for such a beautiful stone. Gem matrix, which you can get a natural polish on sells for $10 - 50 per carat while concert sells for $1- 2 per carat for larger stones.

Andamooka Matrix is even great just left in a glass jar as a dazzling specimen.

Andamooka opal

No Reserve Opal Online Auctions

No reserve opal online auctons are a great entry point for new opal buyers, as the buyer can determine the price at which the item sells. This is generally a good indicator of the value of the item.

Of course, the cost to the seller to list a $1 No Reserve item is going to be more than one dollar, once fees, buyer communication and shipping costs have been added to the price they paid for the item.

For this reason sellers have been known to list a great variety of high quality items to ensure a good selling price, and build up their loyal repeat customer base.

Rough Opal

Buying rough opal is always a bit of a gamble as you can’t really see the quality of the precious opal within.

You can lessen the risk if you buy “rubs”. Opal rubs are pieces of rough that have been rubbed down to the colour bar so you can get some idea of the stone it will cut. There is still the risk of inclusions in the stone which may make it smaller than you expect.

Most sellers on the internet wet the rubs or rough before hand to show the colours you can expect when it is polished. Always check the thickness of rubs as if it is too thin it won’t be strong enough for a ring. Any stone around 2 mm thick is too thin and may even need reinforcing in a pendant.

You shouldn’t expect to see a good stone in cheap rough as no seller would deliberately leave it there, however some beautiful stones have been found in rough that looked as if it contained nothing.

Black nobbys from Lightning Ridge are known for there surprises as even the most experienced dealers let some stones slip through in there rough grading process. Nobby rough untouched should always be viewed as a gamble.

With white opal rough it is a rule of thumb that what you paid per gram should cut that per carat as a finished stone.

Buying rough from photos is always difficult so you should check the sellers return policy. If they don’t offer one you should consider taking your business elsewhere. It is generally accepted that if you rub, snip or touch the rough it is considered sold.

Most internet sellers want your repeat business so even if you are not happy with what you have cut you can always ask for a bonus.

6 Tips To Buying Opals Buying Guide With Pictures  Opal Auctions

Trivia & Tips

  • All items should be compared in the same lighting with no natural lighting to make comparisons. 100 watt globe 20 inches above stone recommended.
  • Have a set of stones to compare what you are grading. Many buyers bring their own stones for comparison to the opal fields.
  • If you are buying at Lightning Ridge in the motel there is strong sunlight in the morning so many sellers try to use this to their advantage.
  • Buy from reputable verified sellers, not hobbyiests advertising themselves as experts - common place practice on other auction sites.
  • On the opal field a clean stone with a N1 background and a brightness of 5 will sell very quickly for top money.
  • Check a sellers return policy and stock guarantee. When returning stock use registered post.
  • It might pay to test the waters with a seller on cheaper items if you are interested in purchasing an expensive stone.

The buyers on the internet have a big influence over the shape of the industry. If they return over enhanced stones back to sellers, they will be forcing sellers to more accurately classify their stock so all sellers are on an equal playing field, and it will be easier to compare stock between sellers.

The future is exciting for the opal industry. This beautiful stone is now available at competitive prices to buyers who would normally not have access to it.

The gemstone industry has many levels of dealers but the internet allows you to go direct to the source. New cameras will more accurately capture the true colours of opal and there will be evolving video technology that will allow you to see a stone as if it was in your hand.

With some knowledge there are bargains to be had today. Good luck with your bidding.

SHOP FOR OPALS

購買蛋白石的6個技巧購買指南與圖片蛋白石拍賣你發現自己處於正確的位置,因為在線購買蛋白石的第一步就是用蛋白石信息來教育自己。世界各地的蛋白石愛好者已經開始在線購買蛋白石,因為您可以直接從源頭購買。

最好找到一個網站,其中包括從澳大利亞的蛋白石礦工到蛋白石批發商和國際礦工或批發商的所有類型的賣家。許多買家表示,在互聯網上購買蛋白石是最好的,因為世界各地的賣家必須相互競爭,在受控的在線環境中提供他們的蛋白石銷售。

蛋白石礦工必須對其他賣家定價,所以如果一個礦工高價他的蛋白石不會出售。這是我們的買家的主要優勢,因為賣家相互競爭推動價格下降,這是單個賣家在線網站不提供的。

在互聯網上購買蛋白石的提示

  • 了解不同類型的蛋白石,因為蛋白石的價值不僅取決於它的亮度,還取決於它的來源。 在這裡開始學習。
  • 了解三胞胎雙合透鏡實心蛋白石之間的區別,因為前兩個被增強以顯示更亮的顏色。他們應該以低於固體蛋白石的價格出售。
  • 總是要求手上的蛋白石圖片或中性圖像,因為黑色背景會增強顏色。許多水晶和埃塞俄比亞蛋白石在黑色背景上看起來更好。
  • 黑色蛋白石要求他們的身體色調和亮度等級
  • 大多數蛋白石粗糙照片是在蛋白石潮濕時拍攝的。水可以增強顏色的亮度,但它應該能夠準確地了解石頭在拋光時的樣子。如果粗糙的巨石蛋白石被分開,它不應該需要水來顯示它的顏色,因為分裂通常非常乾淨。
  • 當拍攝照片時, 埃塞俄比亞粗糙通常是乾燥的,因為它是Hydroplane蛋白石。這意味著它可以吸收水分。

基體音指南

基礎體質指南是在互聯網上購買蛋白石最好的秘密,因為大多數互聯網賣家給出了他們正在銷售的石頭體色的相當準確的描述。

蛋白石協會正在營銷一個帶有蛋白石和雙合透鏡的體色指南,因此所有買家和賣家都可以有一個統一的指南來測量蛋白石。這些將幫助買家比較賣家之間的蛋白石。你應該總是買賣保證他的產品和等級的賣家,所以如果你不同意,你可以退貨。

基體色調是指蛋白石的黑暗或輕盈,忽略了石頭的顏色和亮度。只能通過俯視石頭頂部並忽略石頭背面的材料來確定基色。只有那些排名N1到N4的寶石被認為是黑色蛋白石。蛋白石價格取決於體色,亮度,顏色,顏色,尺寸和允許的缺陷和缺陷。

請參閱下面的蛋白石購買指南示例:

蛋白石購買指南 - 基體色調指南

亮度

石頭的亮度是石頭美麗和價值的最重要因素之一。

在澳大利亞的蛋白石領域,當礦工談論石頭有多亮時,你不會聽到“火”這個詞。然而,該術語在互聯網上用於描述石頭的亮度,並在不同的石頭上均勻地測量蛋白石的亮度。

亮度等級:1微弱,2暗淡,3亮,4非常亮,5亮 - 寶石質量這是你將在大多數網絡拍賣中看到的亮度圖表,其中5是最亮的。目前,蛋白石協會正在開發一個圖表,該圖表將具有七個亮度級別,其中第一個是最亮的。檢查列表以確保使用的是哪個圖表。

蛋白石的亮度圖表

蛋白石顏色受光影響!調整顯示器以獲得準確的色彩+對比度!

您的蛋白石在不同類型的照明中看起來會有所不同。看到的是什麼顏色,形狀或圖案以及視角部分取決於所使用的觀察光。陽光和鎢絲燈泡以及溫暖的燈泡照明將帶來更暖和的色調 - 紅色,橙色,黃色洋紅色和紫色。 “冷卻光”,就像在陰涼處觀察你的蛋白石一樣,往往會帶出涼爽的綠色和藍色。光源。為了觀看,我們建議使用明亮的鎢絲燈泡12“到16”。最好的方法是在陽光明媚的日子讓背對著窗戶,陽光照在肩膀上。

蛋白石尺寸

蛋白石尺寸以毫米(25.4毫米= 1英寸)列出,重量以克拉為單位 - 就像所有其他寶石和珠寶鑲嵌一樣。校準形狀的寶石應該適合大多數為這些尺寸設計的珠寶鑲嵌。距離校準尺寸在0.5到1毫米範圍內的蛋白石可以接受許多校準安裝。由於蛋白石在切割時的浪費,校準形狀蛋白石通常比自由形狀蛋白石花費多15%至50%。可以通過經驗豐富的切割機將自由形狀或更大尺寸的蛋白石切割成更小的尺寸。或者您可以為您的獨特蛋白石定制珠寶,通常費用低於您的預期。蛋白石的厚度是珍貴蛋白石寶石克拉重量的主要因素 - 但是異常厚的蛋白石將被認為不太有價值,因為它可能需要去除多餘的重量以適合珠寶首飾。

玩彩色

旋轉時,最好的珍貴蛋白石在整個寶石上都有顏色。大多數珍貴的蛋白石在100%的寶石中都沒有色彩,並且仍然令人驚嘆。每一種天然珍貴蛋白石寶石都是獨一無二的。一些珍貴的蛋白石有閃光,丑角或其他不尋常的圖案,彩虹,彩帶或許多變化,既美觀又令人驚嘆,而不覆蓋100%蛋白石的臉。如果蛋白石沒有Play-Of-Color,那麼它不是珍貴的蛋白石。有時,蛋白石的區域將具有來自特定視角的Play-Of-Color閃光,而蛋白石的另一區域在不同的視角下閃爍最佳。你可能需要旋轉或轉動寶石和/或改變你,蛋白石和觀察燈之間的位置,以便從許多蛋白石寶石的特定區域看到Play-Of-Color。這些寶石是定向的,通常最適合吊墜。從大多數視角來看,最昂貴的蛋白石至少有一些精彩的Play-of-Color。有時蛋白石最好是從側麵點亮或略微“上方”,這將使其成為用作吊墜的理想蛋白石。一些蛋白石處於最佳和最明亮的“面朝上” - 當觀眾將光源放在她的肩膀上時,就像環形石頭一樣面朝上觀看蛋白石。其中一些模式可以爆炸,看起來令人驚嘆。

可見的蛋白石缺陷

這裡列出的是一些可以降低珍貴蛋白石價值的天然缺陷。如果您可以接受這些天然缺陷,您可以購買否則無法承受的蛋白石。並且,“天然缺陷”證明蛋白石不是人造的!

在蛋白石表面可見的白色至奶油色區域通常被稱為“粘土”或“絲綢”或“沙子”,當蛋白石形成時會出現一小塊粘土。

具有珍貴蛋白石的“矩陣”蛋白石被其內部形成的可見岩石或粘土包圍,其價值將低於固體蛋白石或大多數優質雙層結構。

顏色面上的Potch線是可以接受的,只要它們與石頭外觀沒有對比。大多數黑色寶石的面部都有一些沒有突出的灰色,但是黑色的石頭上的灰色底座會降低它的價值。

有時蛋白石內部的一條線就是蛋白石自然形成的方式,而不是裂縫或缺陷。把它靠近燈的形狀看它,你可以看到一個破碎的反射。如果蛋白石的大部分區域沒有珍貴的Play-Of-Color(有時稱為'potch'),那將會降低蛋白石的價值。如果蛋白石表面有明顯的划痕,在蛋白石經過專業拋光後去除它們的價值會增加。穿過蛋白石表面厚度的裂縫會降低其價值。為了保存損壞的寶貴的珍貴蛋白石紀念品,有時可以修復裂縫,肉眼不再能看到裂縫。任何珍貴蛋白石的銷售商應該總是告訴客戶蛋白石是否已經修復,穩定或以其他方式處理。

蛋白石缺陷或包含

蛋白石攝影

必須要記住的是,蛋白石反射光線,數碼相機並不是為了捕捉蛋白石中驚人的圖案和顏色變化。

一個簡單的實驗是在自然陽光下通過門口將石頭放在地板上,並將石頭移回內部,沿途拍攝幾張照片。您很可能會發現一張照片看起來很棒,就像它已被增強一樣。

根據攝影設備和照明光源的質量,數碼照片和用肉眼觀看石頭之間總會有一些差異。

預計銷售商將生產一致的照片,代表所銷售的蛋白石。查看具有視頻的項目可以是揭示優質蛋白石的許多不同面的好方法,並且可以看到從各個角度看不一定可見的顏色移動。

經驗豐富的買家將知道考慮所有信息,包括N音評級,亮度,形狀,尺寸和當然價格。

最常見的抱怨是藍蛋白石。大多數相機捕捉到肉眼無法看到的石頭中的紫紅色。因此,如果你看到紫紅色的石頭,記住它很可能是一塊藍色的石頭。

柔和的色彩似乎真實地形成。使用埃塞俄比亞蛋白石,紅色很容易被捕獲,手中也不會那麼明亮。

如果賣方保證他的庫存,那麼過度增強圖片就沒有優勢,因為他必須返回太多庫存。

許多賣家使用黑色背景,因為相機捕獲了最好的opalat。總是要求拍攝手中的照片。你可以看到下面的兩塊石頭看起來更好看,更自然。最後的圖片已經增強,因此您會注意到手部看起來如何變紅並且不那麼自然。如果你看到一隻手看起來很紅,你就知道圖片已經增強了。

觀看蛋白石

將蛋白石放在手中,在陽光直射下觀察或從明亮的鎢或鹵素光源觀察12“-16”:

將蛋白石左右搖擺並從上到下搖動 - 轉動蛋白石寶石 - 順時針旋轉90度並重複,然後再重複。

改變光源,蛋白石和眼睛之間的角度並重複。將蛋白石側面或頂部到底部搖動以改變視角。

丑角圖案

Harlequin蛋白石蛋白石中最受追捧的圖案,因為它的稀有性和美感。

美國寶石學院(GIA)的網站上,它指出:“丑角或馬賽克 - 寬闊,棱角分明,近距離的色塊”。

最初圓形或花卉形狀不稱為丑角,但現在這是常見的做法。

在一些不道德的網站上,許多寶石被列為丑角,因為賣家認為這會增加其價值。這些寶石中的許多不會在蛋白石領域被稱為丑角,但它們本身仍然是美麗而有價值的。從蛋白石專家那裡購買總是很重要的。

在我20年銷售數千塊石頭的經驗中,我只有三塊蛋白石,我認為它含有真正的小丑圖案。

丑角蛋白石圖案

雙峰或天然石?

當蛋白石鑲嵌在珠寶中時,很難確定蛋白石是否是雙峰。只有從珠寶中取出石頭才能確定。

將10個動力環或放大鏡放在石頭的側面。由於膠水沒有拋光,你會看到水晶和背襯之間的間隙,所以你知道它是雙重的。

或者,如果您有數碼相機,您可以拍攝石頭邊的照片並放大計算機上的照片。如果使用了膠水,很容易看到。請參閱我們關於雙聯體和三聯體的文章以了解更多信息。

包容還是骨折?

有時石頭有自然的夾雜物,看起來像裂縫。確定石頭是否破裂的最佳方法是將石頭保持在燈罩的底部並用手指滾動石頭,使石頭保持在光線而不是陰影區域。如果有裂縫,您會看到光線像擋風玻璃上的芯片一樣從裂縫中反射出來。

天然石或合成石?

一些合成或仿製蛋白石可能會使客戶感到困惑。

需要注意的事項:

  • 通常他們背後沒有夾雜物或背景
  • 除了頂級寶石之外,這種圖案看起來是偶然的。
  • 如果從側面看,顏色線在下部區域。
  • 不自然的外觀和他們的火。

合成蛋白石有時用於三胞胎中,這些三胞胎更難以發現。一般來說,它們非常明亮,具有規則的圖案,看起來太恆定而不是自然的。最好熟悉一些人造蛋白石(通常標榜為合成或人造),因此更容易識別它們。

購買蛋白石的6個技巧購買指南與圖片蛋白石拍賣

Andamooka Matrix

Andamooka Matrix是一種天然白色蛋白石基質,存在於南澳大利亞的Andamooka。它被視為昂貴的黑色蛋白石。治療是永久性的,但如果你重塑或切割它,你將不得不重新治療它。

這種材料中的一些被稱為音樂會,其比寶石基質更多孔。因為它有毛孔,很難得到很好的潤色。您可以使用像液體玻璃這樣的樹脂 - 或者在澳大利亞,我們使用Shell製造的HX3。這是一種浸泡在石頭上的環氧樹脂,可以提供良好的拋光效果。顏色和火是驚人的。

在球場上,他們稱這場音樂會為這樣一塊美麗的石頭而命名。寶石基質,你可以得到一個天然的拋光,售價為每克拉10至50美元,而音樂會售價為每克拉1至2美元的大型寶石。

Andamooka Matrix甚至可以留在玻璃罐中作為令人眼花繚亂的標本。

Andamooka蛋白石

沒有Reserve Opal在線拍賣

由於買家可以確定商品的銷售價格,因此沒有預訂蛋白石在線商店是新蛋白石買家的絕佳切入點。這通常是項目價值的良好指標。

當然,一旦將費用,買方通信和運輸成本添加到他們為該項目支付的價格中,賣方列出$ 1 No Reserve項目的成本將超過一美元。

出於這個原因,眾所周知,賣家會列出各種各樣的高品質商品,以確保良好的銷售價格,並建立忠誠的重複客戶群。

粗蛋白石

購買粗蛋白石總是有點賭博,因為你無法真正看到珍貴蛋白石的質量。

如果你購買“摩擦”,你可以減少風險。蛋白石摩擦是磨成顏色條的粗糙部分,因此您可以了解它將切割的石頭。石頭中仍然存在夾雜物的風險,這可能使其比預期的要小。

互聯網上的大多數賣家會擦拭摩擦或手工粗糙,以顯示拋光時可以預期的顏色。始終檢查摩擦的厚度,好像它太薄,不足夠堅固的戒指。 2毫米厚的任何石頭都太薄,甚至可能需要在吊墜中加固。

你不應該期望在便宜的粗糙中看到一塊好的石頭,因為沒有賣家會故意將它留在那裡,但是在粗糙的地方發現了一些美麗的石頭,看起來好像什麼都沒有。

來自Lightning Ridge的Black nobbys以驚喜聞名,即使是經驗最豐富的經銷商也會讓一些石頭在粗糙的分級過程中滑過。裸體粗糙應始終被視為賭博。

對於白色蛋白石粗糙,根據經驗,你每克支付的費用應該減少每克拉作為成品石。

從照片中購買粗糙信息總是很困難,因此您應該查看賣家退貨政策。如果他們不提供,你應該考慮在其他地方開展業務。人們普遍認為,如果您擦拭,剪斷或觸摸粗糙部分,則視為已售出。

大多數互聯網銷售商都希望您的重複業務,所以即使您對削減的東西不滿意,也可以隨時要求獎金。

購買蛋白石的6個技巧購買指南與圖片蛋白石拍賣

瑣事和小貼士

  • 所有項目應在相同的照明下進行比較,沒有自然光照進行比較。建議在石頭上方20英寸的100瓦地球儀。
  • 有一組寶石來比較你評分的內容。許多買家帶著自己的寶石與蛋白石領域進行比較。
  • 如果您在汽車旅館的Lightning Ridge購買,早上會有強烈的陽光,所以很多賣家都會嘗試使用它。
  • 從信譽良好的經過驗證的賣家那裡購買,而不是作為專家宣傳自己的愛好者 - 在其他拍賣網站上的常見做法。
  • 在蛋白石領域,具有N1背景和亮度為5的干淨石頭將很快賣出以獲得最高收益。
  • 檢查賣家退貨政策和庫存保證。退貨時使用掛號郵件。
  • 如果您有興趣購買昂貴的石頭,可以用賣家在更便宜的物品上測試水。

互聯網上的買家對行業的形態有很大的影響。如果他們將增強的石頭返還給賣家,他們將迫使賣家更準確地對他們的庫存進行分類,以便所有賣家都處於平等的競爭環境中,並且更容易比較賣家之間的庫存。

對於蛋白石行業來說,未來是令人興奮的。這塊美麗的石頭現在以具有競爭力的價格提供給通常無法使用它的買家。

寶石行業有許多級別的經銷商,但互聯網允許您直接前往源頭。新的相機將更準確地捕捉蛋白石的真實顏色,並且將有不斷發展的視頻技術,讓您可以看到石頭就像在你手中一樣。

有了一些知識,今天就有便宜貨。祝你好運。

購買OPALS

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評論

Walt01

thanks for your time and clearly speak to the ones that mite not understand the words youll use to look at a opal .you have helped me how to realy look at a opal .thank you for all the help ad your time .walt from savannah Ga. us.

16th Mar 2018
Judyk45

Very helpful. Thanks!

19th May 2017
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