Fancy Shape Lab Created Opal Cabochon With Brown Matrix, AAA Sterling Opal Loose Stone for Pendant Making, 10 Cts, 15x20mm

Fancy Shape Lab Created Opal Cabochon With Brown Matrix, AAA Sterling Opal Loose Stone for Pendant Making, 10 Cts, 15x20mm

Regular price $46.99
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Product Specifications

Stone Name Lab Created Monarch Opal Cabochon, Sterling Opal
Stone Color Green and orange fire with brown matrix border
Weight 10 Cts
Size Approx 15 x 20 mm
Quantity 1 Pair (2 pieces)
Shape Fancy
Back Side Flat
Quality AAA
Gemstone Type Lab Created
Origin USA

Product Overview

Green fire caught inside a warm honey brown edge, like a piece of raw stone that never got polished away.

Most cabochons show color edge to edge. This one keeps a honey brown border running around the outside, like a raw brown opal that got polished just enough to reveal the fire trapped inside without smoothing away the natural looking texture around it.

Green flashes cut through the center with warm orange catching the light at certain angles.

That brown matrix border is what sets this apart from a standard clean cabochon. If you're used to seeing opal look glassy and uniform, this piece leans earthier, closer to how raw brown opal looks before it's fully worked.

It still carries the same lab created opal structure as our other Sterling Opal and Monarch Opal cabochons, so the play of color holds up the same way, it's just framed differently.

At 10 carats and 15x20mm, it sets well as a pendant focal stone, somewhere the matrix border can stay visible around the edge of a bezel rather than getting hidden under prongs. Flat backed, AAA graded, ready to mount.

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Express delivery 4-5 days
🚚 Deliver within 08/21/2026 to 08/31/2026
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Product Frequently Asked Questions

It's cut to preserve the natural matrix edge rather than trimming the stone down to solid color only. That border is part of the design, it gives the piece a raw, earthy look similar to matrix opal you'd find in nature.

Depends how deep the bezel wall sits. A shallow bezel will let the brown border peek through as a frame, a deeper one will cover more of it. If you want the border visible, ask your setter to leave extra clearance.

No, the matrix is part of how the cabochon was cut and finished, not a flaw. It handles the same as any flat back cabochon as long as you avoid dropping it on hard surfaces.

Pendant is the better fit. At 15x20mm with a matrix border, it reads best as a focal piece someone can actually look at closely, which a necklace allows more than a ring does.

Natural boulder opal keeps its ironstone backing because it's cut directly from the host rock. This is lab created opal shaped to echo that same earthy matrix look, so you get the aesthetic without needing an actual ironstone-backed natural stone.