Antique & Vintage Fossils for Sale in Online Auctions

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3.11 Ct Natural London Blue Topaz Round Cut: Weight - 3.11 Ct / Dimensions - 8.20 x 8.00 x 6.80 mm / Shape - Round Cut / Color - Blue / Clarity - VVS / Origin - Brazil / Treatment - Irradiated

2026

3.11 Ct Natural London Blue Topaz Round Cut

Gems AuctionBangkok, TH

11.46 Ct Natural Purple Amethyst Oval Cut: Weight - 11.46 Ct / Dimensions - 15.20 x 13.10 x 10.70 mm / Shape - Oval Cut / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

11.46 Ct Natural Purple Amethyst Oval Cut

Gems AuctionBangkok, TH

1.71 Ct Natural Pink Tourmaline Rectangle Cut: Weight - 1.71 Ct / Dimensions -8.20 x 4.70 x 4.50 mm / Shape & Cut - Rectangle Cut / Color - Pink / Transparency - Transparent / Comments - Unheated

2026

1.71 Ct Natural Pink Tourmaline Rectangle Cut

Gems AuctionBangkok, TH

18.88 Ct Natural Purple Amethyst Cushion Football Cut: Weight - 18.88 Ct / Dimensions -20.00 x 14.00 x 12.50 mm / Shape - Cushion Cut / Color - Purple / Clarity - VVS / Origin - Brazil / Treatment - None

2026

18.88 Ct Natural Purple Amethyst Cushion Football Cut

Gems AuctionBangkok, TH

8.25 Ct Natural Lemon Quartz Rare Fancy Trillion Cut: Weight - 8.25 Ct / Dimensions - 14.30 x 14.30 x 8.60 mm / Shape - Fancy Trillion Cut / Clarity - VVS / Origin - Brazil / Comments - Heated

2026

8.25 Ct Natural Lemon Quartz Rare Fancy Trillion Cut

Gems AuctionBangkok, TH

2.29 Ct Natural Aquamarine Oval Cut: Weight - 2.29 Ct / Dimensions - 10.50 x 7.00 x 5.30 mm / Shape - Oval Cut / Color - Water Blue / Clarity - Transparent / Origin -India / Comments - None

2026

2.29 Ct Natural Aquamarine Oval Cut

Gems AuctionBangkok, TH

20.00 Ct Natural Pink Opal "PEPPERMINT" Round Cab: Weight - 20.00 Ct / Dimensions - 19.70 x 19.70 x 8.20 mm / Shape - Round Cabochon / Clarity - Opaque / Origin - Peru / Comments - None

2026

20.00 Ct Natural Pink Opal "PEPPERMINT" Round Cab

Gems AuctionBangkok, TH

5.56 Ct Natural Multicolor Welo Opal Top Fire Round Cab Set: Weight - 5.56 Ct / Dimensions - 6.10 x 3.30 - 6.20 x 4.50 mm / 7 Pc's / Shape - Round Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

2026

5.56 Ct Natural Multicolor Welo Opal Top Fire Round Cab Set

Gems AuctionBangkok, TH

62.63 Ct Natural Shattuckite Oval Cab: weight - 62.63 Ct / Size - 46.00 x 30.00 x 5.80 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

62.63 Ct Natural Shattuckite Oval Cab

Gems AuctionBangkok, TH

6.75 Ct Natural Green Peridot Oval Cut: Weight - 6.75 Ct / Dimensions - 16.40 x 8.40 x 6.30 mm / Shape - Oval Cut / Color - Green / Clarity - VVS / Origin - Pakistan / Treatment - None

2026

6.75 Ct Natural Green Peridot Oval Cut

Gems AuctionBangkok, TH

17.18 Ct Natural Choco Smoky Quartz Round cut: Weight - 17.18 Ct / Dimensions - 16.00 x 16.00 x 11.50 mm / Top Class Quality / Round cut / Origin - Norway / Treatment - None

2026

17.18 Ct Natural Choco Smoky Quartz Round cut

Gems AuctionBangkok, TH

12.09 Ct Natural Purple Amethyst Round Cut: Weight - 12.09 Ct / Dimensions -14.00 x 14.00 x 10.50 mm / Shape - Round Cut / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

12.09 Ct Natural Purple Amethyst Round Cut

Gems AuctionBangkok, TH

11.20 Ct Natural Colorless Quartz Octagon Laser Cut: Weight - 11.20 Ct / Dimensions - 16.30 x 12.50 mm / Shape & Cut - Octagon Cut / Color - White / Transparency - VVS / Origin - Brazil / Comments - None

2026

11.20 Ct Natural Colorless Quartz Octagon Laser Cut

Gems AuctionBangkok, TH

12.33 Ct Natural Bicolor Ametrine Octagon Cut: Weight - 12.33 Ct / Size - 16.40 x 11.20 x 8.90 mm / Shape - OCtagon Cut / Color - Bicolor / Clarity - VVS / Origin -Brazil / Treatment - None

2026

12.33 Ct Natural Bicolor Ametrine Octagon Cut

Gems AuctionBangkok, TH

4.77 Ct Natural Canary Tourmaline Pear Cut Set: Weight - 4.77 Ct / Size - 7.0x4.8 - 7.2x4.7 mm / 7 Pc's / Shape - Pear Cut / Color - Yellow / Clarity - VVS / Origin - Brazil / Treatment - None

2026

4.77 Ct Natural Canary Tourmaline Pear Cut Set

Gems AuctionBangkok, TH

239.20 Ct Natural Purple Amethyst "Collection Piece" Oval Cut: Weight - 239.20 Ct / Dimensions - 50.00 x 33.00 x 25.00 mm / Shape - Oval Cut / Color - Purple / Clarity - SI / Origin -Brazil / Treatment - Heated

2026

239.20 Ct Natural Purple Amethyst "Collection Piece" Oval Cut

Gems AuctionBangkok, TH

4.52 Ct Natural London Blue Topaz Round Carving Cab: Weight - 4.52 Ct / Dimensions - 10.10 x 10.10 x 5.30 mm / Shape - Round Carving Cab / Color - Blue / Clarity - VVS / Origin - Brazil / Treatment - Irradiated

2026

4.52 Ct Natural London Blue Topaz Round Carving Cab

Gems AuctionBangkok, TH

3.71 Carats Play-of-Color Welo Opal - Natural Ethiopian Gem 14x9mm, 46XA: This captivating Welo opal gleams with a luminous cascade of multi neon color that ripple across the stone's surface with every movement. The play-of-color is vivid and well-distributed, presenting a

2026

3.71 Carats Play-of-Color Welo Opal - Natural Ethiopian Gem 14x9mm, 46XA

ThousandPlanetHunghom, Kowloon

3.45 Carats Roseveil Welo Opal - Natural Ethiopian Gemstone 11.9x9.8x5.3mm, 51XH: This elegant Welo opal displays a gentle gradient of blush pink, sky blue, and apricot orange that flows beneath its smooth, elongated surface. The pastel color play has a soft, veil-like effect-ether

2026

3.45 Carats Roseveil Welo Opal - Natural Ethiopian Gemstone 11.9x9.8x5.3mm, 51XH

ThousandPlanetHunghom, Kowloon

14.24 Carats Deep Green Maw Sit Sit Jade Cabochon - Natural Burmese Stone, 16AB: This maw sit sit jade cabochon is fashioned into an oval, domed form with a highly polished surface. The material exhibits a deep, saturated green matrix, interspersed with distinct, lighter green vei

2026

14.24 Carats Deep Green Maw Sit Sit Jade Cabochon - Natural Burmese Stone, 16AB

ThousandPlanetHunghom, Kowloon

5.17 Carats Confetti Light Welo Opal - Natural Ethiopian Gemstone 16.7x11.4x5.6mm, 13XH: This luminous Welo opal shimmers with a soft cascade of pastel fire, revealing flashes of mint, lavender, peach, and lemon yellow dancing beneath a creamy translucent surface. The play-of-color appear

2026

5.17 Carats Confetti Light Welo Opal - Natural Ethiopian Gemstone 16.7x11.4x5.6mm, 13XH

ThousandPlanetHunghom, Kowloon

5.38 Carats Deep Green Maw Sit Sit Jade Cabochon - Natural Burmese Stone, 11AB: This maw sit sit jade cabochon is fashioned into an oval, domed form with a highly polished surface. The material exhibits a deep, saturated green matrix, interspersed with distinct, lighter green vei

2026

5.38 Carats Deep Green Maw Sit Sit Jade Cabochon - Natural Burmese Stone, 11AB

ThousandPlanetHunghom, Kowloon

3.61 Carats Play-of-Color Welo Opal - Natural Ethiopian Gem 14x9mm, 24XA: This captivating Welo opal gleams with a luminous cascade of multi neon color that ripple across the stone's surface with every movement. The play-of-color is vivid and well-distributed, presenting a

2026

3.61 Carats Play-of-Color Welo Opal - Natural Ethiopian Gem 14x9mm, 24XA

ThousandPlanetHunghom, Kowloon

5.12 Carats Koroit Boulder Opal Pear Cabochon - Natural Australian Stones 17.6x7.6mm, 18XM: This striking 5.12-carat Koroit boulder opal pear cabochon is a natural geological masterpiece, featuring a dramatic banded ironstone matrix interwoven with vivid veins of intense violet and deep blue

2026

5.12 Carats Koroit Boulder Opal Pear Cabochon - Natural Australian Stones 17.6x7.6mm, 18XM

ThousandPlanetHunghom, Kowloon

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Fossils Auctions

Rare Fossilized Dinocrocuta Skull, Terrible Hyena

Large Woodland Period Steatite Platform Pipe

Roman Imperial Silver Cup with Twin Handles

Fossils | Native American | Ethnographic Art

Artemis Fine Arts

Starts on:

Louisville, CO, US

Signed Handel Triple Scrolled Case Base & Geometric Leaded Glass Shade

Designer 18k White Gold & 2 Carat Diamond Earrings

Syd Solomon (American, 1917-2004) Original Abstract Oil and Acrylic on Canvas 'Dawnote'

May Estate & Jewelry Auction

Heritage Gallery Auctions

Starts on:

Patchogue, NY, US

MUSHROOM RHYOLITE CABOCHON ROCK STONE LAPIDARY SPECIMEN

ROCK STONE LAPIDARY SPECIMEN

MIXED LOT ROCK STONE LAPIDARY SPECIMEN

NATURAL HISTORY ROCKS ANTIQUE GEMS

Col. Christie Hatman Auctioneers

Starts on:

Thayer, MO, US

13 hrs Left

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