Alfonso Mazzuchelli Gems

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1.57 Ct Natural Blue Fire Opal Oval Cut: Weight - 1.57 Ct / Size - 11.20 x 8.60 x 4.30 mm / Shape - Oval Cut / Color - Blue / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

1.57 Ct Natural Blue Fire Opal Oval Cut

Bangkok, TH

Gems Auction

4.7

(486)

1.91 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 1.91 Ct / Size - 10.10 x 7.00 x 5.00 mm / Shape - Oval Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

1.91 Ct Natural Black Flashing Fire Opal Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

19.02 Ct Natural Multicolor Flourite OVal Cab: weight - 19.02 Ct / Size - 31.00 x 12.70 x 4.40 mm / Shape - OVal Cab / Origin - Brazil / Treatment - None

2026

19.02 Ct Natural Multicolor Flourite OVal Cab

Bangkok, TH

Gems Auction

4.7

(486)

4.46 Ct Natural Multicolor Welo Opal Flash Fire Round Beads: Weight - 4.46 Ct / Dimensions - 5.50 - 5.90 mm / 8 Pc's / Shape & Cut - Round Beads / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

4.46 Ct Natural Multicolor Welo Opal Flash Fire Round Beads

Bangkok, TH

Gems Auction

4.7

(486)

8.38 Ct Natural Rutile Quartz Fancy Cab: Weight - 8.38 Ct / Dimensions - 16.10 x 8.60 x 5.40 mm / Shape & Cut - Fancy Cab / Transparency - Transaprent / Origin - Norway / Comments - None

2026

8.38 Ct Natural Rutile Quartz Fancy Cab

Bangkok, TH

Gems Auction

4.7

(486)

6.95 Ct Natural Black Onyx Pear Drop: Weight - 6.95 Ct / Size - 11.40 x 8.00 x 8.00 mm / Shape - Pear Drop / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

6.95 Ct Natural Black Onyx Pear Drop

Bangkok, TH

Gems Auction

4.7

(486)

6.45 Ct Natural Rutile Quartz Oval Cab: Weight - 6.45 Ct / Dimensions -16.50 x 12.00 x 4.20 mm / Shape & Cut - Oval Cab / Transparency - Transaprent / Origin - Norway / Comments - None

2026

6.45 Ct Natural Rutile Quartz Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

1.14 Ct Natural Multicolor Welo Opal Fire Oval cab Set: Weight - 1.14 Ct / Dimensions - 6.2x4.2 - 5.9x3.9 mm / 4 Pc's / Shape & Cut - Oval cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

1.14 Ct Natural Multicolor Welo Opal Fire Oval cab Set

Bangkok, TH

Gems Auction

4.7

(486)

3.76 Ct Natural Aquamarine Pear Cut: Weight - 3.76 Ct / Size - 10.80 x 10.80 x 6.20 mm / Shape - Pear Cut / Color -Light Blue / Clarity - VVS / Origin -India / Treatment - None

2026

3.76 Ct Natural Aquamarine Pear Cut

Bangkok, TH

Gems Auction

4.7

(486)

6.61 Ct Natural Star Diopside Oval Cab: Weight - 6.61 Ct / Dimensions - 12.10 x 10.20 x 5.90 mm / Shape - OVal Cab / Color - Black / Clarity - Opaque / Origin - India / Treatment - None

2026

6.61 Ct Natural Star Diopside Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

2.21 Ct Natural Bicolor Fire Opal Oval Cab: Weight - 2.21 Ct / Size - 14.40 x 8.30 x 4.30 mm / Shape - Oval Cab / Color - Bicolor / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

2.21 Ct Natural Bicolor Fire Opal Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

3.88 Ct Natural Sharp Line Moonstone Oval Cab: weight - 3.88 Ct / Size - 10.50 x 8.40 x 6.00 mm / Shape - Excellent Oval Cab / Origin - India / Treatment - None

2026

3.88 Ct Natural Sharp Line Moonstone Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

3.11 Ct Natural Orange Carnelian Oval Cab: Weight - 3.11 Ct / Size - 10.50 x 7.20 x 5.30 mm / Shape - Oval Cab / Clarity - Semi - Opaque / Origin - Brazil

2026

3.11 Ct Natural Orange Carnelian Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

26.05 Ct Natural Rhodochrosite Cushion Cab: Weight - 26.05 Ct / Size - 31.00 x 11.90 x 5.60 mm / Shape - Cushion Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

26.05 Ct Natural Rhodochrosite Cushion Cab

Bangkok, TH

Gems Auction

4.7

(486)

4.35 Ct Natural Green Amethyst Octagon Cut Pair: Weight - 4.35 Ct / Size - 9.10 x 7.10 x 4.30 mm / 2 Pc's / Shape - Octagon Cut / Color - Green / Clarity - VVS / Origin - Brazil / Treatment - Heated

2026

4.35 Ct Natural Green Amethyst Octagon Cut Pair

Bangkok, TH

Gems Auction

4.7

(486)

2.71 Ct Natural Almandite Garnet Octagon Cut: Weight - 2.71 Ct / Dimensions - 9.10 x 7.20 x 3.80 mm / Shape - Octagon Cut / Clarity - VVS / Origin - Nigeria / Treatment - None

2026

2.71 Ct Natural Almandite Garnet Octagon Cut

Bangkok, TH

Gems Auction

4.7

(486)

1.35 Ct Natural Multicolor Welo Opal Fire Round cab Set: Weight - 1.35 Ct / Dimensions - 4.80 - 5.00 mm / 4 Pc's / Shape & Cut - Round cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

1.35 Ct Natural Multicolor Welo Opal Fire Round cab Set

Bangkok, TH

Gems Auction

4.7

(486)

5.62 Ct Natural Multicolor Welo Opal Flash Fire Round Cut Beads: Weight - 5.62 Ct / Dimensions - 4.50 - 5.00 mm / 17 Pc's / Shape & Cut - Round cut Beads / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

5.62 Ct Natural Multicolor Welo Opal Flash Fire Round Cut Beads

Bangkok, TH

Gems Auction

4.7

(486)

3.90 Ct Natural Green Amethyst Cushion Cut: Weight - 3.90 Ct / Size - 11.00 x 8.90 x 6.50 mm / Shape - Cushion Cut / Color - Green / Clarity - VVS / Origin - Brazil / Treatment - Heated

2026

3.90 Ct Natural Green Amethyst Cushion Cut

Bangkok, TH

Gems Auction

4.7

(486)

1.30 Ct Natural Blue Fire Opal Oval Cut: Weight - 1.30 Ct / Dimensions - 9.00 x 7.10 x 5.10 mm / Shape - Oval Cut / Color - Blue / Clarity - Translucent / Origin - Ethiopia / Treatment - Heated

2026

1.30 Ct Natural Blue Fire Opal Oval Cut

Bangkok, TH

Gems Auction

4.7

(486)

10.41 Ct Natural Blue Turquoise Oval Cab: Weight - 10.41 Ct / Dimensions - 16.80 x 12.10 x 6.90 mm / Good Color / Oval cab- Ready for Jewellery Setting / Origin - Egypt / Treatment - None

2026

10.41 Ct Natural Blue Turquoise Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

1.16 Ct Natural Blue Fire Opal Oval Cut: Weight - 1.16 Ct / Dimensions - 8.90 x 7.00 x 4.40 mm / Shape - Oval Cut / Color - Blue / Clarity - Translucent / Origin - Ethiopia / Treatment - Heated

2026

1.16 Ct Natural Blue Fire Opal Oval Cut

Bangkok, TH

Gems Auction

4.7

(486)

1.57 Ct Natural Blue Topaz Pear Drop: Weight - 1.57 Ct / Dimensions - 7.60 x 5.00 x 5.00 mm / Shape & Cut - PeaR Drop / Color - Blue / Transparency - VVS / Origin - Brazil / Comments - Irradiated

2026

1.57 Ct Natural Blue Topaz Pear Drop

Bangkok, TH

Gems Auction

4.7

(486)

4.75 Ct Natural Pink Fire Opal Round Beads: Weight - 4.75 Ct / Dimensions - 5.50 - 5.80 mm / 10 Pc's / Shape - Round Beads / Color - Pink / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

4.75 Ct Natural Pink Fire Opal Round Beads

Bangkok, TH

Gems Auction

4.7

(486)

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Gems Auctions

UNIQUE BERTONI HANDCRAFTED DESIGNER BRANCH RING WITH 18K YELLOW GOLD & ONYX with diamonds

Large Lemon Quartz

Estate Opal and Sapphire 14k yellow flower ring

Jewels & Gems, Then & Now

Bertoni Gallery LLC

Starts on:

Warwick, NY, US

14KY&W Gold Tanzanite and Diamond Swirled Pendant

18K Emerald and Diamond Halo Ring Signed Iliana

Ruby and Diamond Marquise-Cut Doorknocker Earrings

Trending Colored Gems Plus Fine Jewelry Sale

Bidfair Fine Jewelry

Ends from:

Vero Beach, FL, US

Auction Cover

Auction Cover

Auction Cover

Silk Road Gems: Asian Art Across Time

harbor auction inc

Starts on:

Eastvale, CA, US

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