Opal

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1.16 Ct Natural Ethiopian Green Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 1.16 ct /Size or Dimensions: 9 X 7 X 4 mm /Treatment: Color Dyed

2026

1.16 Ct Natural Ethiopian Green Fire Opal

Finest Gems Auction Rajasthan, IN

2.31 Ct Natural Ethiopian Blue Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 2.31 ct /Size or Dimensions: 11.50 X 8.30 X 5.30 mm /Treatment: Color Dyed

2026

2.31 Ct Natural Ethiopian Blue Fire Opal

Finest Gems Auction Rajasthan, IN

1.34 Ct Natural Ethiopian Fire Opal Rough: Gemstones: Natural Fire Opal /Carat Weights: 1.34 ct /Treatment: No

2026

1.34 Ct Natural Ethiopian Fire Opal Rough

Finest Gems Auction Rajasthan, IN

1.37 Ct Natural Ethiopian Green Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 1.37 ct /Size or Dimensions: 9 X 7 X 4.40 mm /Treatment: Color Dyed

2026

1.37 Ct Natural Ethiopian Green Fire Opal

Finest Gems Auction Rajasthan, IN

1.54 Ct Natural Ethiopian Pink Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 1.54 ct /Size or Dimensions: 9 X 6 X 4 mm /Treatment: Color Dyed

2026

1.54 Ct Natural Ethiopian Pink Fire Opal

Finest Gems Auction Rajasthan, IN

1.31 Ct "Play Of Colors" Natural Black Opal: Gemstones: Natural Black Fire Opal /Carat Weights: 1.31 ct /Size or Dimensions: 9.50 X 7 X 4.50 mm Approx /Treatment: Heated

2026

1.31 Ct "Play Of Colors" Natural Black Opal

Finest Gems Auction Rajasthan, IN

4.20 Ct "Play of Colors" Natural Ethiopian Pink Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 4.20 ct /Size or Dimensions: 15.36 X 12.46 X 5.07 mm /Treatment: Dyed

2026

4.20 Ct "Play of Colors" Natural Ethiopian Pink Fire Opal

Finest Gems Auction Rajasthan, IN

1.56 Ct "Play of Colors" Natural Ethiopian Fire Opal Cut: Gemstones: Natural Fire Opal /Carat Weights: 1.56 ct /Size or Dimensions: 7 X 5 mm /Treatment: No

2026

1.56 Ct "Play of Colors" Natural Ethiopian Fire Opal Cut

Finest Gems Auction Rajasthan, IN

2.34 Ct "Play of Colors" Natural Ethiopian Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 2.34 ct /Size or Dimensions: 9.70 X 8 X 5.50 mm /Treatment: No

2026

2.34 Ct "Play of Colors" Natural Ethiopian Fire Opal

Finest Gems Auction Rajasthan, IN

1.46 Ct "Play Of Colors" Natural Black Opal Cut: Gemstones: Natural Black Fire Opal /Carat Weights: 1.46 ct /Size or Dimensions: 11.50 X 8 X 3.30 mm Approx /Treatment: Heated

2026

1.46 Ct "Play Of Colors" Natural Black Opal Cut

Finest Gems Auction Rajasthan, IN

2.02 Ct "Play Of Colors" Natural Black Opal Cut: Gemstones: Natural Black Fire Opal /Carat Weights: 2.02 ct /Size or Dimensions: 14 X 8 X 4.80 mm Approx /Treatment: Heated

2026

2.02 Ct "Play Of Colors" Natural Black Opal Cut

Finest Gems Auction Rajasthan, IN

2.02 Ct "Play of Colors" Natural Ethiopian Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 2.02 ct /Size or Dimensions: 8.80 X 5.20 mm /Treatment: No

2026

2.02 Ct "Play of Colors" Natural Ethiopian Fire Opal

Finest Gems Auction Rajasthan, IN

0.83 Ct "Play of Colors" Natural Ethiopian Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 0.83 ct /Size or Dimensions: 8 X 6 X 3 mm /Treatment: No

2026

0.83 Ct "Play of Colors" Natural Ethiopian Fire Opal

Finest Gems Auction Rajasthan, IN

1.03 Ct "Play Of Colors" Natural Black Opal Pair: Gemstones: Natural Black Fire Opal /Carat Weights: 1.03 ct /Size or Dimensions: 7 X 5 mm Approx /Treatment: Heated

2026

1.03 Ct "Play Of Colors" Natural Black Opal Pair

Finest Gems Auction Rajasthan, IN

8.50 Ct "Play of Colors" Natural Ethiopian Fire Opal: Gemstones: Natural Fire Opal /Carat Weights: 8.50 ct /Size or Dimensions: 20.50 X 12 X 8.15 mm /Treatment: No

2026

8.50 Ct "Play of Colors" Natural Ethiopian Fire Opal

Finest Gems Auction Rajasthan, IN

Loose Gemstones: Collection of Loose Gemstones. To include opals, two small tapered baguette cut diamonds, two baguette cut garnets, a tiger eye and an angel skin coral. Kodner Galleries offers phone and absentee bidd

2026

Loose Gemstones

Kodner Galleries Inc.Dania Beach, FL

12.26 Carats Australian Matrix Opal Oval Cabochon - Natural Stone, 76XB: This singular oval cabochon matrix opal, measuring 19.8 x 15.2 x 7.1 mm, features a deep, dark host matrix studded with vibrant, scattered opal flecks. The polished surface reveals a dazzling play of

2026

12.26 Carats Australian Matrix Opal Oval Cabochon - Natural Stone, 76XB

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

5.45 Carats Boulder Opal Cabochon - Natural Matrix Vein, 61XM: This 5.45ct boulder opal cabochon, measuring 18x9mm, is a striking example of Australia's iconic gemstone, showcasing the unique beauty of nature's artistry. The teardrop-shaped cabochon is polished t

2026

5.45 Carats Boulder Opal Cabochon - Natural Matrix Vein, 61XM

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

37.07ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 13YP: 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

37.07ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 13YP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

49.27ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 52YL: 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

49.27ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 52YL

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

42.76ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 58YP: 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

42.76ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 58YP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

88.68ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 68YP: 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

88.68ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 68YP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

22.89ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 33YP: 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

22.89ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 33YP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

21.71ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 3YP: 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

21.71ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 3YP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, 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

2 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

2 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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