$400.00 USD

4.98 cts Boulder Opal - Winton - Bright Face (RB709)

Dimensions (mm)
22.000 x 7.000 x 4.000mm
Weight (cts)

Weight: 4.98 cts

Size: 22 x 7 x 4 mm

Brightness: 4

Body Tone: N/A

Origin: Winton Queensland

This is a beautiful opal mined from outback Queensland in an area called Winton. It is the most northern opal field in Australia. This opal has a beautiful matrix mixed with opal colours. Each and every opal is unique and different.


Buy with confidence, I guarantee all of my opals. If you don’t like your purchase, even if it is simple personal choice, send it back for a “no questions asked” refund. I understand that sometimes you need to see the opal to truely know if you love it or not. I strive for my customers to be 100% happy with the beautiful opal they have received. If you are not happy with your recent purchase then I want to hear from you.

Opal Selection and Quality

When selecting opals to sell, I use my knowledge and skills obtained from the Accredited Gemologist Diploma from the AIGS, as well as the collective knowledge of the ICA to select high quality, reasonably priced opals. Opals are sourced from reputable miners at the source in Lightning Ridge, Yowah, Koroit and Coober Pedy.

Photography Information

All photos are taken with Nikon Coolpix 4500 under different light sources depending on how the stone behaves.Every effort is made to ensure accurate and representative photography of the stone.

Shipping provider Shipping to Australia Shipping to rest of world
Standard Shipping - Tracked $6.00 / 7 days $15.00 / 21 days
Standard Shipping - Tracked is discounted to $6.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $15.00 on orders with 2 or more items
Express Shipping $10.00 / 3 days $25.00 / 7 days
Express Shipping is discounted to $10.00 on orders with 2 or more items
Rest of the world
Express Shipping is discounted to $25.00 on orders with 2 or more items

I have been brought up around opals all my life and I have always been fascinated by this beautiful stone. In 2011, I decided to follow my passion and start in the the gemstone industry after serving 7 years as an electrical engineer. Chroma Gems offers opals from all over the world, but mainly from the Australian sites of Lightning Ridge, Coober Pedy, Koroit and Yowah. All of the stones are direct from the mines and have not been treated of modified in anyway unless clearly indicated. That is something Chroma Gems prides itself on. We offer a 100% money back guarantee on all purchases. Australia post is the main postal service used as it has a excellent reputation for delivery to most parts of the world. We hope you enjoy what we have to offer and we hope you find a piece of treasure of your own.
Miami1, Australia
4147 Feedback
100% Rating

3 months ago
4.10cts Lightning Ridge Black Opal
4.10cts Lightning Ridge Black Opal
I had this set in a platinum diamond setting and wow!!!! It appraised at about 3 times what I paid for the whole thing. Wish I could post a picture!!! SOOOO happy with purchase!!!
4 months ago
3.51cts Andamooka Opal
3.51cts Andamooka Opal
Excellent thank you
6 months ago
3.89cts Lightning Ridge Black Opal
3.89cts Lightning Ridge Black Opal
Paid and shipped - no feedback left after 100 days
6 months ago
7.28cts Dark Opal Carving (Semi Black)
7.28cts Dark Opal Carving (Semi Black)
Absolutely as shown and as described. Refreshing change from the other sellers that enhance their color hue of their photos to get a higher price per carat. Trusted Dealer here will buy from them again!!!
7 months ago
14.16cts Koroit Boulder Opal - Pre Drilled
14.16cts Koroit Boulder Opal - Pre Drilled


The Opal Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

$15.00 21 days via Standard Shipping - Tracked
Ships from:

Payment Options

  • paypal
  • stripe
  • escrow
  • gempay
This seller adds 10.00% tax to transactions in Australia.


Listing Type : Standard
Product ID : 635637
Starts : 25th November 2023 07:25 pm PST
* All prices are in USD