The popularity of Opals has exploded in the last few years. Buyers always need to be on the look out and do their best at knowing how to identify fake Opal.
Many shops across the world carry Opal and sell them to the general public at a price point that is lower than Australian Opals. Many buyers do not have experience with this type of Opal and many of them think they are being sold a synthetic or a fake Opal. We will try to explain the best ways on how to identify fake Opal below.
Below are examples of Natural Opals, note all the different patterns.
Below is a sample of what fake Opal looks like.
On Opal Auctions all of our sellers are verified and have knowledge about Opals.
The most common form of synthetic Opal found on the market is the Gilson synthetic. This type of Opal has been around since 1974. It is created using Silica so it is a true synthetic version of natural Opal.
This is the newest type of Synthetic to hit the market. It is made from a resin mixture so it is not a true Synthetic version of natural Opal. The pattern is very similar throughout the Opal. This is to be expected when something is manufactured. Natural Opal is unique and random while a manufactured product will be uniform.
Vendors of Opals should follow these guidelines when trying to describe an Opal.
If you are interested in the patterns found in Opal from Ethiopia please read this informative article about patterns written by GIA.
Was this article helpful?21 people found this article helpful
My last purchase eBay was 3 years ago, I bought 4 natural Ethiopian black opals
One year later they went dull brown and the pattern disappeared, then year later were clear and then I threw them out
I know now they were treated smoked only and not natural
I paid $400 for them. That was my last purchases on eBay
Hi James it is good question you ask
At present no approved Gem testing laboratory will issue report stating that wello opals are black opals.
There are so many smoked treated Ethiopian opals that are certified by secondary laboratories as black natural opals
For this reason we do not allow our sellers to use word black opals on Ethiopian opals but the word Dark.
You go to any other site besides Opalauctions and see smoked Ethiopians as natural black and even lot Indonesian opal as natural black opal
Until we are advised by approved laboratories like GIA,AGL,IGI our policy will stay the same
Scientists and laboratories are still investigating this and we are in contact with several, looking into Ethiopian and Indonesian opals in regards to treatments and what opal is natural or not
It is an exciting time as everyone wants to use word BLACK in describing their opals and we look forward to latest reports and will update on this site when more research is clarified
I like to point out that you allow Aussie opals to be called and listed as black such as this opal ,Auction #566653 ,but a Wello opal needs a gem lab report to be called black ? very bias in my opinion,if an opal is black its black and if its not its not,a name should not be used if the item description does not meet the color,do you really need a gem lab report to know if an opal is black or not? or do you think there are no black wello opals ? lol best regards