Alfons Bach Gems

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1.00 Carats Purple Violetish Sapphire - Natural Loose Gemstone, LZ278: This refined oval mixed-cut sapphire captivates with a delicate purple hue infused with soft violetish undertones, creating a luminous, ethereal appearance reminiscent of twilight skies and lavender b

2026

1.00 Carats Purple Violetish Sapphire - Natural Loose Gemstone, LZ278

Sathorn, Bangkok

Lazo Heritage

4.4

(22)

162.12 Carats Natural Aquamarine Rough Parcel, 92YH: This luminous parcel of natural aquamarine rough showcases the classic soft sky-blue hue the gem is known for, ranging from pale, translucent tones to deeper, more saturated blues. The stones are in t

2026

162.12 Carats Natural Aquamarine Rough Parcel, 92YH

Sathorn, Bangkok

Lazo Heritage

4.4

(22)

1.93 Carats Natural Ethiopian Welo Orange Fire Opal Oval Faceted Loose Gemstone, 75XX: This opal material is mined from the Welo deposits of Ethiopia and processed with professional faceted lapidary work with uniform polished facets across the gem surface. Natural subtle internal textur

2026

1.93 Carats Natural Ethiopian Welo Orange Fire Opal Oval Faceted Loose Gemstone, 75XX

Sathorn, Bangkok

Lazo Heritage

4.4

(22)

1.97 Ct Natural Red Ruby Pear Cut: Weight - 1.97 Ct / Size - 9.20 x 6.00 x 3.70 mm / Shape - Pear Cut / Color - Red / Clarity - SI / Origin - Mozambique / Treatment - Color Enhanced By Glass Filling

2026

1.97 Ct Natural Red Ruby Pear Cut

Bangkok, TH

Gems Auction

4.7

(486)

25.22 Ct Natural Dendrite Agate Pear Cab: Weight - 25.22 Ct / Size - 37.00 x 18.80 x 5.00 mm / Shape - Excellent Pear Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

25.22 Ct Natural Dendrite Agate Pear Cab

Bangkok, TH

Gems Auction

4.7

(486)

18.89 Ct Natural Rose Quartz Round Cut Beads: Weight - 18.89 Ct / Dimensions - 3.20 - 3.30 mm / 106 Pc's / 12.25" inches / Top Class Quality / Round Cut Beads / Origin - Brazil / Comments - None

2026

18.89 Ct Natural Rose Quartz Round Cut Beads

Bangkok, TH

Gems Auction

4.7

(486)

0.43 Ct Natural Zambian Green Emerald Oval Cut: Weight - 0.43 Ct / Dimensions - 5.80 x 4.10 x 2.70 mm/ Shape - Oval Cut / Color - Green / Clarity - SI / Origin - Zambia / Treatment - Natural Emeralds are commonly enhanced by oil

2026

0.43 Ct Natural Zambian Green Emerald Oval Cut

Bangkok, TH

Gems Auction

4.7

(486)

3.33 Ct Natural Pink Fire Opal Round Beads: Weight - 3.33 Ct / Dimensions - 4.40 - 4.80 mm / 14 Pc's / Shape - Round Beads / Color - Pink / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

3.33 Ct Natural Pink Fire Opal Round Beads

Bangkok, TH

Gems Auction

4.7

(486)

13.82 Ct Natural Rutile Quartz Marquise Cab: Weight - 13.82 Ct / Dimensions - 25.90 x 10.90 x 6.60 mm / Shape & Cut - Marquise Cab / Transparency - Transaprent / Origin - Norway / Comments - None

2026

13.82 Ct Natural Rutile Quartz Marquise Cab

Bangkok, TH

Gems Auction

4.7

(486)

1.10 Ct Natural Yellow Citrine Pear Drop: Weight - 1.10 Ct / Dimensions - 7.50 x 4.70 x 4.70 mm / Shape & Cut - Pear Drop / Color - Yellow / Transparency - VVS / Origin - Brazil / Comments - Heated

2026

1.10 Ct Natural Yellow Citrine Pear Drop

Bangkok, TH

Gems Auction

4.7

(486)

2.25 Ct Natural Purple Amethyst Pear Drop: Weight - 2.25 Ct / Dimensions - 9.20 x 6.10 x 6.10 mm / Shape - Pear Drop / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

2.25 Ct Natural Purple Amethyst Pear Drop

Bangkok, TH

Gems Auction

4.7

(486)

5.23 Ct Natural Orange Carnelian Oval Cab: Weight - 5.23 Ct / Size - 12.60 x 9.40 x 5.90 mm / Shape - Oval Cab / Clarity - Semi - Opaque / Origin - Brazil

2026

5.23 Ct Natural Orange Carnelian Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

2.82 Ct Natural Yellow Citrine Pear Cut: Weight - 2.82 Ct / Dimensions - 8.90 x 9.00 x 5.80 mm / Shape & Cut - Pear Cut / Color - Yellow / Transparency - VVS / Origin - Brazil / Comments - Heated

2026

2.82 Ct Natural Yellow Citrine Pear Cut

Bangkok, TH

Gems Auction

4.7

(486)

1.73 Ct Natural Multicolor Welo Opal Flash Fire Cushion Cut: Weight - 1.73 Ct / Dimensions - 8.70 x 8.60 x 5.30 mm / Shape & Cut - Cushion Cut / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

1.73 Ct Natural Multicolor Welo Opal Flash Fire Cushion Cut

Bangkok, TH

Gems Auction

4.7

(486)

2.07 Ct Natural Bicolor Fire Opal Oval Cab: Weight - 2.07 Ct / Size - 12.50 x 8.70 x 4.60 mm / Shape - Oval Cab / Color - Bicolor / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

2.07 Ct Natural Bicolor Fire Opal Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

4.69 Ct Natural Purple Amethyst Cushion Cut: Weight - 4.69 Ct / Dimensions - 11.00 x 11.00 x 7.40 mm / Shape - Cushion Cut / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

4.69 Ct Natural Purple Amethyst Cushion Cut

Bangkok, TH

Gems Auction

4.7

(486)

11.85 Ct Natural Rutile Amethyst Quartz Oval Cab: Weight - 11.85 Ct / Dimensions - 19.10 x 12.60 x 6.30 mm / Shape - Oval Cab / Clarity - Transparent / Origin - Norway / Treatment - None

2026

11.85 Ct Natural Rutile Amethyst Quartz Oval Cab

Bangkok, TH

Gems Auction

4.7

(486)

21.61 Ct Natural Blue Lace Agate Round Cut Beads: Weight - 21.61 Ct / Size - 3.10 - 3.30 mm / 112 Pc's / 12.25" inches / Shape - Excellent Round Cut Beads / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

21.61 Ct Natural Blue Lace Agate Round Cut Beads

Bangkok, TH

Gems Auction

4.7

(486)

2.63 Ct Natural Yellow Citrine Pear Cut: Weight - 2.63 Ct / Dimensions - 9.00 x 8.80 x 5.70 mm / Shape & Cut - Pear Cut / Color - Yellow / Transparency - VVS / Origin - Brazil / Comments - Heated

2026

2.63 Ct Natural Yellow Citrine Pear Cut

Bangkok, TH

Gems Auction

4.7

(486)

22.03 Ct Natural Blue Apatite Round Cut Beads: Weight - 22.03 Ct / Size - 3.00 - 3.30 mm / 113 Pc's / 12.5" inches / Top Class Quality / Round Cut Beads / Origin - Brazil / Treatment - None

2026

22.03 Ct Natural Blue Apatite Round Cut Beads

Bangkok, TH

Gems Auction

4.7

(486)

1.71 Ct Natural Black Flashing Fire Opal OVal Cut: Weight - 1.71 Ct / Dimensions - 11.60 x 8.40 x 4.50 mm / Shape - OVal Cut / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

1.71 Ct Natural Black Flashing Fire Opal OVal Cut

Bangkok, TH

Gems Auction

4.7

(486)

3.63 Ct Natural Yellow Citrine Octagon Cut: Weight - 3.63 Ct / Dimensions - 10.60 x 7.60 x 5.60 mm / Shape & Cut - Octagon Cut / Color - Yellow / Transparency - VVS / Origin - Brazil / Comments - Heated

2026

3.63 Ct Natural Yellow Citrine Octagon Cut

Bangkok, TH

Gems Auction

4.7

(486)

3.73 Ct Natural Orange Coral Trillion Cab: Weight - 3.73 Ct / Dimensions - 11.60 x 11.50 x 5.30 mm / Shape - Trillion Cab / Clarity - Translucent / Origin - Japan / Comments - None

2026

3.73 Ct Natural Orange Coral Trillion Cab

Bangkok, TH

Gems Auction

4.7

(486)

1.07 Ct Natural Multicolor Welo Opal Top Fire Pear Cut: Weight - 1.07 Ct / Dimensions - 9.40 x 6.70 x 4.60 mm / Shape - Pear Cut / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

2026

1.07 Ct Natural Multicolor Welo Opal Top Fire Pear Cut

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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