This loose, pre-owned freeform boulder opal, in an excellent condition, is ideal for a one-of-a-kind jewellery make with a sustainable edge.
Both sides of this gemstone are curved, but one side is flatter than the other giving it a cabochon like shape.
Gem details:
- Type: Boulder Opal
- Size: 13.64mm long, 8.97mm wide, 5.00mm deep
- Weight: 4.52 ct
- Colour: dark brown base colour with opal seams. The opal play-of-colour is mostly green with flashes of blue and red.
- Clarity: Opaque
- Shape: Freeform with an oval shape
- Treatment: None
- Origin: Pre-owned.
Condition – Excellent
Creation – Natural
This gemstone has been identified and assessed by a qualified gemologist to ensure accuracy and quality.
I do my best to ensure the colour of the gem in the photos is as accurate as possible. Please allow for slight variation as all devices display colour differently.
Photographs are taken in indirect natural daylight unless otherwise stated.
You will receive the gemstone shown in the photographs.
Your gemstone will arrive in a small screw-top pot with felted wool padding for protection.
🔗 Want tips for working with opals? Check out my Jewellers Guide to Opals
🔗 Curious why pre-owned gemstones are a sustainable choice? Learn more about Reclaimed and Recycled Gemstones

















