Opal

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An Opal, Emerald & Diamond Cocktail Ring: Vermeil ring featuring a rectangular shaped opal cabochon measuring approx. 10.1 x 8.7 mm bezel set with rose cut diamond and step cut emeralds bead set and channel set accents, sz 6.75, 4.6 grams

2026

An Opal, Emerald & Diamond Cocktail Ring

Alex CooperTowson, MD

A Custom Made Boulder Opal Pendant in 14K: 14K yellow gold custom made pendant featuring rectangular boulder opal with blue and green play-of-color, freeform rolled frame, 1 in. L, 5.5 grams

2026

A Custom Made Boulder Opal Pendant in 14K

Alex CooperTowson, MD

OPAL AND DIAMOND RING: OPAL AND DIAMOND RING,testing high carat gold.Lovely opals.Bright and lively diamond.Size K.

2026

OPAL AND DIAMOND RING

Etrusca AuctionsLondon, UK

Sterling & White Opal Gold Tone Heart Pendant: Sterling & White Opal Gold Tone Heart PendantMarked 925 - 7/8" Long - 1.7 Grams

2026

Sterling & White Opal Gold Tone Heart Pendant

Berner's Antique Auction GallerySpringfield, OH

SOLD

2.09 Ct Oval Fire Opal 9K Gold Ring: 2.09 Total Carat Fire Opal 9K Gold Ring Specifications: Total Weight 2.312 g Center Gemstone Fire Opal Gemstone Carat Weight 1.76 Carats Gemstone Measurements 10.20X8.10X5.50 mm Additional Gemstones W

2026

2.09 Ct Oval Fire Opal 9K Gold Ring

Jasper52New York, NY

ASSORTED VICTORIAN CASED GLASS BRIDE'S BOWLS, LOT OF SIX: ASSORTED VICTORIAN CASED GLASS BRIDE'S BOWLS, LOT OF SIX, various forms and colors, including a spangled cranberry shaded to opal example with applied colorless ruffled rim and a cranber

2026

ASSORTED VICTORIAN CASED GLASS BRIDE'S BOWLS, LOT OF SIX

Jeffrey S. Evans & AssociatesMt. Crawford, VA

NORTHWOOD NO. 263 / LEAF UMBRELLA WATER CREAMERS, LOT OF TWO: NORTHWOOD NO. 263 / LEAF UMBRELLA WATER CREAMERS, LOT OF TWO, turquoise cased opal and Rose Du Barry, in two sizes, one larger "Table" and one smaller "Breakfast/Individual", each

2026

NORTHWOOD NO. 263 / LEAF UMBRELLA WATER CREAMERS, LOT OF TWO

Jeffrey S. Evans & AssociatesMt. Crawford, VA

An Ethiopian Welo Opal Rough Lot, 47.23g, 50ZH: A parcel of rough Welo opal, with individual pieces ranging from 1-2 cm in size. The specimens exhibit a milky to translucent base, with visible play-of-color displaying flashes of blue, green, yellow

2026

An Ethiopian Welo Opal Rough Lot, 47.23g, 50ZH

Lazo HeritageSathorn, Bangkok

12.62ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 10YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

12.62ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 10YP

Lazo HeritageSathorn, Bangkok

2.52ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 87WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11.4x8.7x5.3mm. The black smoke treatment de

2026

2.52ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 87WP

Lazo HeritageSathorn, Bangkok

2.28 Carats Natural Ethiopian Welo Opal Oval Cabochon Loose Gemstone, 41XV: Natural Ethiopian Welo opal polished oval cabochon loose gemstone, luminous translucent milky white base stone with vivid multi-hued play-of-color featuring bright emerald green, lime yellow, soft blu

2026

2.28 Carats Natural Ethiopian Welo Opal Oval Cabochon Loose Gemstone, 41XV

Lazo HeritageSathorn, Bangkok

14.67ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 40YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

14.67ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 40YP

Lazo HeritageSathorn, Bangkok

39.15ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 92YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

39.15ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 92YP

Lazo HeritageSathorn, Bangkok

2.13ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 88WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.8x8.3x4.9mm. The black smoke treatment de

2026

2.13ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 88WP

Lazo HeritageSathorn, Bangkok

76.15ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 27YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

76.15ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 27YP

Lazo HeritageSathorn, Bangkok

2.95ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 90WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11.3x8.9x5.4mm. The black smoke treatment de

2026

2.95ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 90WP

Lazo HeritageSathorn, Bangkok

5.07 Carats Iridescent Multicolor Boulder Opal - Natural Australian Stone, 56XM: This striking boulder opal dazzles with a kaleidoscopic play of color, shifting through vivid greens, pinks, and iridescent blues across its triangular cabochon form. The stone's translucent, milky ba

2026

5.07 Carats Iridescent Multicolor Boulder Opal - Natural Australian Stone, 56XM

Lazo HeritageSathorn, Bangkok

1.56ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 85WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.4x7.9x3.9mm. The black smoke treatment de

2026

1.56ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 85WP

Lazo HeritageSathorn, Bangkok

2.34 Carats Natural Ethiopian Welo Opal Oval Cabochon Loose Gemstone, 48XV: Natural Ethiopian Welo opal polished oval cabochon loose gemstone, luminous translucent milky white base stone with vivid multi-hued play-of-color featuring bright emerald green, lime yellow, soft blu

2026

2.34 Carats Natural Ethiopian Welo Opal Oval Cabochon Loose Gemstone, 48XV

Lazo HeritageSathorn, Bangkok

1.39ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 95WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.1x7.3x3.9mm. The black smoke treatment de

2026

1.39ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 95WP

Lazo HeritageSathorn, Bangkok

2.21 Carats Natural Ethiopian Welo Black Smoked Opal Loose Gemstone, 59WJ: This natural Ethiopian Welo black smoked opal carries dimension measurements of 11.1x9.3x5.2mm, sourced from Ethiopia's Welo opal deposits famous for dark base opal varieties that amplify vivid shifti

2026

2.21 Carats Natural Ethiopian Welo Black Smoked Opal Loose Gemstone, 59WJ

Lazo HeritageSathorn, Bangkok

1.88 Carats Natural Ethiopian Welo Black Smoked Opal Loose Gemstone, 60WJ: This natural Ethiopian Welo black smoked opal has dimensional measurements of 11.6x7.08x4.4mm, sourced from Ethiopia's renowned Welo opal mining areas celebrated for dark base opal material that inten

2026

1.88 Carats Natural Ethiopian Welo Black Smoked Opal Loose Gemstone, 60WJ

Lazo HeritageSathorn, Bangkok

1.85 Carats Multicolor Flash Welo Opal Oval Cabochon - Natural Ethiopian Stone, 79XB: This exceptional Welo opal cabochon displays a breathtaking play of color, with vivid, sweeping flashes of electric green and warm sunset orange moving across its milky, translucent base. Measuring 10

2026

1.85 Carats Multicolor Flash Welo Opal Oval Cabochon - Natural Ethiopian Stone, 79XB

Lazo HeritageSathorn, Bangkok

8.75 Carats Neutral Matrix Boulder Opal Cushion Cabochon - Natural Australian Stone, 11XC: This unique boulder opal cabochon, measuring 15.7 x 11.2 x 5.5 mm, presents a stunning painterly composition in neutral tones. Polished into a smooth cushion shape, the stone features a creamy pale ye

2026

8.75 Carats Neutral Matrix Boulder Opal Cushion Cabochon - Natural Australian Stone, 11XC

Lazo HeritageSathorn, Bangkok

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Opal Auctions

1.97Ct Welo Black Faceted Opal Polished - Ethiopian Opal , 445E

29.90Ct Moss Agate Cabochon - Polished - 31x21mm Approx , 320E

Australian Lightning Ridge Crystal Black Opal Rough Chip Jar (Good For Display), 344B

The Aurora Treasury Gems & Jewels #3

Ksmith Heritage Auctioneers

Starts on:

Jelutong, Penang, MY

3 days Left

6.40 Cts Natural amethyst Gemstone - 12X10.5X8 mm

1.25 Carats Deep Blue Natural Aquamarine Loose Gemstone - 9X6X4 mm

Baby Pink Top quality Natural Kunzite loose Gemstone - 3.25 Carats - 9X8.5X6 mm

NO RESERVE Loose Gemstones

Fantasy Jewelry

Starts on:

Muscat, Muscat, AE

3 days Left

Impressive Mid Century Viking Epic Stockholm Smoke Pine Gray Lotus Wayne Husted Art Glass Vase

GIVENCHY Vintage Designer Matte Silver G Cutout Necklace, Bracelet & Pierced Earrings Ensemble

Vintage Jewelry, Early Christmas & Unusual

Atlee Raber Auctions

Starts on:

Dundee, OH, US

4 days Left

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