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Rare Opal & Amethyst | 42 Certified Gems: NOTE - Additional lots may be added until the final day of the auction. Please check back regularly for updates and newly added items. Certified Amethyst, Sapphire, Opal & White Zircon Drop Earrin

Aug 23, 2026

Rare Opal & Amethyst | 42 Certified Gems

Est.

US$1,600

-

US$2,000

US$355

Designer Row Inc.Ontario, ON

1.20 Ct Natural Zambian Green Emerald Oval Cut: Weight - 1.20 Ct / Dimensions - 8.20 x 6.10 x 3.50 mm / Shape - Oval Cut / Color - Green / Clarity - SI / Origin - Zambia / Comments - Natural Emeralds are commonly enhanced by oil

12 hrs Left

1.20 Ct Natural Zambian Green Emerald Oval Cut

Est.

US$150

-

US$300

US$1

Gems AuctionBangkok, TH

2.59 Ct Natural Prismatic Fire Opal Oval Cab: Weight - 2.59 Ct / Dimensions - 12.20 x 8.80 x 5.10 mm / Shape - OVal Cab / Color - Bicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

6 days Left

2.59 Ct Natural Prismatic Fire Opal Oval Cab

Est.

US$75

-

US$150

US$20

Gems AuctionBangkok, TH

9.94 Ct Natural Blue Turquoise Oval Cab: Weight - 9.94 Ct / Dimensions - 17.17 x 14.00 x 6.50 mm / Shape - Oval Cab / Color - Blue / Transparency - Opaque / Origin - Egypt / Treatment - None

12 hrs Left

9.94 Ct Natural Blue Turquoise Oval Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

0.73 Ct Natural Blue Sapphire Oval Cut: Weight - 0.73 Ct / Dimensions- 6.20 x 5.10 x 3.00 mm / Shape - Oval Cut / Clarity - Opaque / Origin - Sri Lanka / Treatment - Standard Heated

12 hrs Left

0.73 Ct Natural Blue Sapphire Oval Cut

Est.

US$150

-

US$300

US$1

Gems AuctionBangkok, TH

20.84 Ct Natural Garnet 7.5" Round Cut Beads: Weight - 20.84 Ct / Dimensions - 3.30 - 3.70 mm / 73 pc's / 7.5" inches / Shape - Round Beads / Transparency - Transparent/ Origin - Nigeria / Treatment - None

12 hrs Left

20.84 Ct Natural Garnet 7.5" Round Cut Beads

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

1.33 Ct Natural Green Tourmaline Octagon Cut: Weight : 1.33 Ct / Dimensions : 7.40 x 5.20 mm / Shape : Octagon Cut / Color : Bluish green / Transparency : Transparent / Comments : No any Comments

12 hrs Left

1.33 Ct Natural Green Tourmaline Octagon Cut

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

22.17 Ct Natural Shattuckite Oval Cab: weight - 22.17 Ct / Size - 31.00 x 14.10 x 5.60 mm / Shape - Oval Cab / Origin - Brazil / Treatment - None

Aug 21, 2026

22.17 Ct Natural Shattuckite Oval Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

30.27 Ct Natural Tibetian Turquoise Fancy Cab: Weight - 30.27 Ct / Dimensions - 23.70 x 22.40 x 5.20 mm / Good Color / Fancy Cabochon - Ready for Jewellery Setting / Origin - Tibet / Treatment - None

6 days Left

30.27 Ct Natural Tibetian Turquoise Fancy Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

22.89 Ct Natural Pink Kunzite Oval Cab: Weight - 22.89 Ct / Dimensions - 21.60 x 13.70 x 7.70 mm / Shape - Oval Cab / Color - Pink / Clarity - SI / Origin - Afghanisthan / Treatment - None

6 days Left

22.89 Ct Natural Pink Kunzite Oval Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

4.81 Ct Natural Almandite Garnet Cushion Cab Pair: Weight - 4.81 Ct / Dimensions - 6.90 x 6.90 x 5.00 mm / 2 Pc's / Shape - Cushion Cab / Clarity - Transparent / Origin - Nigeria / Comments - None

12 hrs Left

4.81 Ct Natural Almandite Garnet Cushion Cab Pair

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

0.87 Ct Natural Pink Sapphire Oval Cut: Weight - 0.87 Ct / Size- 6.50 x 4.70 x 3.00 mm / Shape - Oval Cut / Clarity - VVS / Origin - Sri Lanka / Treatment - Standard Heated

12 hrs Left

0.87 Ct Natural Pink Sapphire Oval Cut

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

2.31 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 2.31 Ct / Size - 14.30 x 7.80 x 4.70 mm / Shape - Oval Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 21, 2026

2.31 Ct Natural Black Flashing Fire Opal Oval Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

9.05 Ct Natural Blue Sapphire Round Beads: Weight - 9.05 Ct / Dimensions- 5.40 - 5.70 mm / 6 Pc's / Shape - Round Beads / Clarity - SI / Origin - Sri Lanka / Treatment - Standard Heated

6 days Left

9.05 Ct Natural Blue Sapphire Round Beads

Est.

US$75

-

US$150

US$8

Gems AuctionBangkok, TH

5.60 Ct Natural Blue Sapphire Round Beads: Weight - 5.60 Ct / Size- 4.60 - 4.90 mm / 6 Pc's / / Shape - Round Beads / Clarity - VVS / Origin - Sri Lanka / Treatment - Standard Heated

6 days Left

5.60 Ct Natural Blue Sapphire Round Beads

Est.

US$75

-

US$150

US$2

Gems AuctionBangkok, TH

14.71 Ct Natural London Blue Topaz Oval Cut Pair: Weight - 14.71 Ct / Size - 14.00 x 10.30 x 7.30 mm / 2 Pc's / Shape - Oval Cut / Color - Blue / Clarity - VVS / Origin - Brazil / Treatment - Irradiated

12 hrs Left

14.71 Ct Natural London Blue Topaz Oval Cut Pair

Est.

US$200

-

US$400

US$44

Gems AuctionBangkok, TH

1.30 Ct Natural Multicolor Welo Opal Pear Cut: Weight - 1.30 Ct / Dimensions - 11.40 x 7.60 x 4.40 mm / Shape & Cut - Pear Cut / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

6 days Left

1.30 Ct Natural Multicolor Welo Opal Pear Cut

Est.

US$75

-

US$150

US$2

Gems AuctionBangkok, TH

1.42 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 1.42 Ct / Size - 10.60 x 7.20 x 4.10 mm / Shape - Oval Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

6 days Left

1.42 Ct Natural Black Flashing Fire Opal Oval Cab

Est.

US$75

-

US$150

US$2

Gems AuctionBangkok, TH

1.28 Ct Natural Zambian Emerald Octagon Cut Pair: Weight - 1.28 Ct / Size - 6.00 x 4.20 x 3.30 mm / 2 Pc's / Shape - Octagon Cut / Color - Green / Clarity - S / Origin - Zambia / Treatment - Natural Emeralds are commonly enhanced by oil

12 hrs Left

1.28 Ct Natural Zambian Emerald Octagon Cut Pair

Est.

US$125

-

US$250

US$1

Gems AuctionBangkok, TH

21.90 Ct Natural Black Flashing Fire "Shadowfire" Opal Oval Cab: Weight - 21.90 Ct / Dimensions - 25.00 x 15.10 x 11.40 mm / Shape - OVal Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

12 hrs Left

21.90 Ct Natural Black Flashing Fire "Shadowfire" Opal Oval Cab

Est.

US$800

-

US$1,600

US$70

Gems AuctionBangkok, TH

41.47 Ct Natural Multicolor Welo Fire Opal Round Cut Beads: Weight - 41.47 Ct / Dimensions - 4.30 - 6.80 mm / 121 Pc's / 13" inches / Shape - Round Beads / Transparency - Transparent / Origin - Ethiopia / Treatment - None

12 hrs Left

41.47 Ct Natural Multicolor Welo Fire Opal Round Cut Beads

Est.

US$175

-

US$350

US$1

Gems AuctionBangkok, TH

0.84 Ct Natural Blue Sapphire Pear Cut: Weight - 0.84 Ct / Size- 6.50 x 5.00 x 3.00 mm / Shape - Pear Cut / Clarity - Opaque / Origin - Sri Lanka / Treatment - Diffused

6 days Left

0.84 Ct Natural Blue Sapphire Pear Cut

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

19.02 Ct Natural Pink Morganite Pear Cab: Weight - 19.02 Ct / Size - 19.70 x 13.90 x 9.80 mm / Shape - Pear Cab / Color - Light Pink / Clarity - Opaque / Origin - Mozambique / Treatment - None

6 days Left

19.02 Ct Natural Pink Morganite Pear Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

76.23 Ct Natural Blue Topaz Oval Football Cut: Weight - 76.23 Ct / Size - 30.00 x 21.00 x 17.00 mm / Shape - Oval Football Cut / Color - Blue / Clarity - VVS / Origin - Brazil / Treatment - Irradiated

12 hrs Left

76.23 Ct Natural Blue Topaz Oval Football Cut

Est.

US$500

-

US$1,000

US$2

Gems AuctionBangkok, TH

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