Vibrant / Large Australian Opal In Stone Matrix

Oceania, Australia, Cretaceous Period, ca. 110 million years ago. This is a stunning piece of milky opal in a stone matrix. The matrix is professionally prepared and cut to show off the splendor of th

Oceania, Australia, Andanooka, Cretaceous Period, ca. 110 million years ago. A stunning opal within a stone matrix that is cut into a large brick shape. The opal is untreated and characteristically wh

**First Time At Auction** Oceania, Australia, Cretaceous Period, ca. 110 million years ago. A stunning display of opal encased in a stone matrix! The color play of blue and lilac iridescence within th

A beautiful 14K Y/G ring, center a large Australian opal wt. approx. 10.0ct, accented by blue stones (possible tanzanite), wt. 9.7gm, size 7.5

OPAL AND DIAMOND FIVE STONE RING. set with large vibrant opals with diamonds on the side of each opal. size O 1/2. 5.9 grams.

This is a vintage 14K gold ring featuring a large and colorful Australian opal with vibrant green, blue, and red fire. The opal is flanked by two full cut diamonds on either side.The diamonds are SI c

Dimension: 17x9x3.6 mm Weight: 4.85 Ct Estimate: $220-$460 In recent auctions, Australian Koroit Matrix Boulder Opals have witnessed an increasing demand. An opal of similar quality and pattern was au

Dimension: 13.5x9.7x3.3 mm Weight: 3.5 Ct Estimate: $220-$460 In recent auctions, Australian Koroit Matrix Boulder Opals have witnessed an increasing demand. An opal of similar quality and pattern was

Dimension: 15x10x4.4 mm Weight: 6.53 Ct Estimate: $220-$460 In recent auctions, Australian Koroit Matrix Boulder Opals have witnessed an increasing demand. An opal of similar quality and pattern was a

Dimension: 14x11.4x3 mm Weight: 3.4 Ct Estimate: $220-$460 In recent auctions, Australian Koroit Matrix Boulder Opals have witnessed an increasing demand. An opal of similar quality and pattern was au

Dimension: 22.7x16x3.9 mm Weight: 6.65 Ct Estimate: $220-$460 In recent auctions, Australian Koroit Matrix Boulder Opals have witnessed an increasing demand. An opal of similar quality and pattern was

Explore the enchanting allure of this collection of Australian Lightning Ridge opal roughs, encapsulated within a clear jar. Sourced directly from the miner in New South Wales, these vibrant stones va

Large Chinese carved boulder opal group; showing birds amid flowers, rendered from the translucent stone showing fine play of color; in a naturalistically carved matrix; H: 5 3/4" (approx.&#41

This large Australian opal pendant has a 14K gold setting and is on a 14K gold serpentine chain. The opal measures 1.5" tall x 1" across x .5" deep.

North America, Wyoming, Green River Formation, Eocene Period, ca. 53.5 to 48.5 million years ago. A fabulous and large stone matrix from the "18 inch" layer of the Green River Formation, bearing a fos

An antique 14K Gold jewelry ring. The ring is encrusted with a large Opal stone to the center and surrounded by diamonds. Circa: 19th century. Marked with a standard Gold hallmark and other Assay mark

SIZE 9. MARKED 750,18K, LARGE OPAL STONE WITH DIAMONDS ON SIDES AND BAND.

LARGE OPAL STONE, 18K GOLD AND DIAMOND RING. SIZE 9.

This is an antique stick pin dating to the 19th century. Rendered in solid 10K rose gold, this pin features a large Australian opal oval cabochon finial. The opal exhibits good red and green fire. 3"

SIGNED: 925. DETAILS: Blacked Silver, brass Leaves and flowers surround the gorgeous ring with a luminescent vibrant large opal center with 2 chrysoprase and aquamarine large round gemstones. SIZE/DIM

Sterling cuff with large opal stone. 8.42 grams total weight. Navajo made by Mark Barney.

This is a vintage 14K white gold ladies ring featuring a large oval Australian opal cabochon with stunning blue, red, and green fire. The opal is flanked by a total of six full cut diamonds. The diamo

This is a vintage 14K gold ladies ring featuring a large prong set Australian fire opal cabochon.

Weight - 4.49 Ct / Size - 16.00 x 9.50 x 3.40 mm / Shape - Pear Cabochon / Color - Multicolor / Clarity - Opaque / Origin - Australian / Treatment - None