Collectible Rocks, Minerals & Fossils for Sale at Auction

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30.90 Ct Natural Bumblebee Jasper Quartz Oval Cab: weight - 30.90 Ct / Dimensions - 41.00 x 17.20 x 5.00 mm / Shape & Cut - Excellent Oval Cab / Origin - Brazil / Comments - None

2026

30.90 Ct Natural Bumblebee Jasper Quartz Oval Cab

Gems AuctionBangkok, TH

4.24 Ct Natural Purple Amethyst Pear Cut: Weight - 4.24 Ct / Dimensions - 11.00 x 10.80 x 7.10 mm / Shape - Pear Cut / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

4.24 Ct Natural Purple Amethyst Pear Cut

Gems AuctionBangkok, TH

25.03 Ct Natural Green Rutile Prehnite Oval Cab: Weight - 25.03 Ct / Dimensions - 40.00 x 24.00 x 6.50 mm / Shape - Oval Cab / Clarity - Semi Transaprent / Origin - Norway / Comments - None

2026

25.03 Ct Natural Green Rutile Prehnite Oval Cab

Gems AuctionBangkok, TH

41.97 Ct Natural Poppy Jasper Quartz Oval Cab: weight - 41.97 Ct / Size - 48.00 x 23.20 x 4.40 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

41.97 Ct Natural Poppy Jasper Quartz Oval Cab

Gems AuctionBangkok, TH

50.63 Ct Natural Blue Kyanite Cushion Cab: Weight - 50.63 Ct / Size - 35.00 x 18.10 x 6.50 mm / Shape - Cushion Cab / Color - Blue / Clarity - Opaque / Origin - India / Treatment - None

2026

50.63 Ct Natural Blue Kyanite Cushion Cab

Gems AuctionBangkok, TH

28.09 Ct Natural Bumblebee Jasper Quartz OVal Cab: weight - 28.09 Ct / Dimensions - 31.00 x 18.10 x 5.80 mm / Shape & Cut - Excellent OVal Cab / Origin - Brazil / Comments - None

2026

28.09 Ct Natural Bumblebee Jasper Quartz OVal Cab

Gems AuctionBangkok, TH

39.31 Ct Natural Mookaite Jasper Quartz OVal Cab: weight - 39.31 Ct / Dimensions -44.00 x 23.00 x 5.10 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

39.31 Ct Natural Mookaite Jasper Quartz OVal Cab

Gems AuctionBangkok, TH

3.61 Ct Natural Orange Hessonite Garnet Square Cut Pair: Weight - 3.61 Ct / Size - 6.30 x 6.30 x 4.70 mm / 2 Pc's / Shape - Square Cut / Clarity - SI / Origin - Nigeria / Treatment - None

2026

3.61 Ct Natural Orange Hessonite Garnet Square Cut Pair

Gems AuctionBangkok, TH

3.80 Ct Natural Blue Topaz Round Cut: Weight - 3.80 Ct / Dimensions - 10.20 x 10.20 x 5.50 mm / Shape - Round Cut / Color - Blue / Clarity - VVS / Origin - Brazil / Treatment - Irradiated

2026

3.80 Ct Natural Blue Topaz Round Cut

Gems AuctionBangkok, TH

55.36 Ct Natural Bumblebee Jasper Quartz Round Cab: Weight - 55.36 Ct / Dimensions - 37.00 x 37.00 x 5.50 mm / Shape - Round Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

55.36 Ct Natural Bumblebee Jasper Quartz Round Cab

Gems AuctionBangkok, TH

2.50 Ct Natural Prismatic Fire Opal Cushion Cab: Weight - 2.50 Ct / Dimensions - 13.40 x 8.60 x 4.60 mm / Shape - Cushion Cab / Color - Bicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

2.50 Ct Natural Prismatic Fire Opal Cushion Cab

Gems AuctionBangkok, TH

47.34 Ct Natural Bumblebee Jasper Quartz Oval Cab: weight - 47.34 Ct / Dimensions - 39.00 x 23.00 x 5.90 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

47.34 Ct Natural Bumblebee Jasper Quartz Oval Cab

Gems AuctionBangkok, TH

4.83 Ct Natural London Blue Topaz Octagon Cut: Weight - 4.83 Ct / Dimensions -12.30 x 7.00 x 5.50 mm / Shape - OCtagon Cut / Color - Blue / Clarity - VVS / Origin - Brazil / Treatment - Irradiated

2026

4.83 Ct Natural London Blue Topaz Octagon Cut

Gems AuctionBangkok, TH

80.13 Ct Natural Green Onyx Oval Cab Pair: Weight - 80.13 Ct / Size - 40.00 x 19.20 x 6.70 mm / 2 Pc's / Shape - Oval Cab / Clarity - Transparent / Origin - Brazil / Treatment - None

2026

80.13 Ct Natural Green Onyx Oval Cab Pair

Gems AuctionBangkok, TH

42.84 Ct Natural Dragon Blood Jasper Quartz Oval Cab: weight - 42.84 Ct / Size - 37.00 x 23.40 x 5.10 mm / Shape - Excellent OVal Cab / Origin - Brazil / Treatment - None

2026

42.84 Ct Natural Dragon Blood Jasper Quartz Oval Cab

Gems AuctionBangkok, TH

3.76 Ct Natural Blue Tint Moonstone Round Cab Set: Weight - 3.76 Ct / Size - 4.00 - 4.20 mm / 14 Pc's / Shape - Round Cab / Clarity - Semi-Transparent / Origin - India / Treatment - None

2026

3.76 Ct Natural Blue Tint Moonstone Round Cab Set

Gems AuctionBangkok, TH

2.30 Ct Natural Black Flashing Fire Opal Square Octagon Cut: Weight - 2.30 Ct / Dimensions - 9.90 x 9.60 x 4.90 mm / Shape - Square Octagon Cut / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

2.30 Ct Natural Black Flashing Fire Opal Square Octagon Cut

Gems AuctionBangkok, TH

2.68 Ct Natural Prismatic Fire Opal Cushion Cab: Weight - 2.68 Ct / Dimensions - 10.90 x 9.10 x 6.00 mm / Shape - Cushion Cab / Color - Bicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

2.68 Ct Natural Prismatic Fire Opal Cushion Cab

Gems AuctionBangkok, TH

25.45 Ct Natural Peanut Obsidian Oval Cab: weight - 25.45 Ct / Dimensions - 35.00 x 17.80 x 5.50 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

25.45 Ct Natural Peanut Obsidian Oval Cab

Gems AuctionBangkok, TH

4.04 Ct Natural Cotton Candy Fire Opal Pear Cab: Weight - 4.04 Ct / Dimensions - 16.00 x 9.70 x 6.20 mm / Shape - Pear Cab / Color - Bicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

4.04 Ct Natural Cotton Candy Fire Opal Pear Cab

Gems AuctionBangkok, TH

41.26 Ct Natural Buffalo Jasper Quartz Round Cab: Weight - 41.26 Ct / Dimensions - 30.00 x 30.00 x 5.40 mm / Shape - Round Cab / Transparency - Opaque / Origin - Pakistan / Treatment - None

2026

41.26 Ct Natural Buffalo Jasper Quartz Round Cab

Gems AuctionBangkok, TH

6.28 Ct Natural Brazilian Amethyst Hexagon Cut: Weight - 6.28 Ct / Dimensions - 14.10 x 12.10 x 8.20 mm / Shape - Hexagon Cut / Color - Light Pink / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

6.28 Ct Natural Brazilian Amethyst Hexagon Cut

Gems AuctionBangkok, TH

8.76 Ct Natural Blue Turquoise Oval Cab: Weight - 8.76 Ct / Dimensions - 15.10 x 13.30 x 6.00 mm / Shape - Oval Cab / Color - Blue / Transparency - Opaque / Origin - egypt / Treatment - None

2026

8.76 Ct Natural Blue Turquoise Oval Cab

Gems AuctionBangkok, TH

14.89 Ct Natural Prehnite Rectangle Cab: Weight - 14.89 Ct / Size - 25.40 x 14.40 x 3.60 mm / Shape - Rectangle Cab / Clarity - Semi Transaprent / Origin - Brazil / Treatment - None

2026

14.89 Ct Natural Prehnite Rectangle Cab

Gems AuctionBangkok, TH

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