Coral Fossils

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40.47ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 67AX: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

40.47ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 67AX

ThousandPlanetThung Wat Don, Sathorn, Bangkok

86.46ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 34AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

86.46ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 34AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

17.76ct Natural Australian Queensland Matrix Boulder Opal Rounded Square Cabochon, 74AV: Hand polished medium rounded square cushion cabochon crafted from natural Queensland matrix boulder opal, featuring warm speckled tan-brown ironstone matrix crisscrossed with thick vivid violet-purple

2026

17.76ct Natural Australian Queensland Matrix Boulder Opal Rounded Square Cabochon, 74AV

ThousandPlanetThung Wat Don, Sathorn, Bangkok

68.60ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 97AX: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

68.60ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 97AX

ThousandPlanetThung Wat Don, Sathorn, Bangkok

75.14ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 89AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

75.14ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 89AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

54.08ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 80AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

54.08ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 80AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

72ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 2FC: This unpolished mineral rough is natural ruby zoisite sourced from Tanzania, exhibiting distinct banded mineral segregation of vibrant green zoisite, magenta ruby crystals, and dark hornblende inclusi

2026

72ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 2FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

86.16ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 87AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

86.16ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 87AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

21.67ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 52AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

21.67ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 52AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

39.18ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 48FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

39.18ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 48FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

23.4ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 44AV: Hand polished freeform tapered trapezoid cabochon crafted from natural Queensland matrix boulder opal, featuring fine glitter-speckled warm brown ironstone host crisscrossed with vivid branching opal

2026

23.4ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 44AV

ThousandPlanetThung Wat Don, Sathorn, Bangkok

24.10 Carats Natural Madagascar Soft Rose Pink Heated Ruby Cabochon Loose Gemstone, 3AK: This warm blush-toned ruby cabochon carries blended swathes of soft rose pink and gentle peach undertones, with faint natural mineral veining throughout the polished dome, measured at 18.7x15.4x7mm. T

2026

24.10 Carats Natural Madagascar Soft Rose Pink Heated Ruby Cabochon Loose Gemstone, 3AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.91 Carats Natural Mozambique Sage Green Tourmaline Loose Gemstone, 26AK: This transparent Mozambique tourmaline displays a delicate light sage green shade, featuring subtle natural fine fissures and scattered tiny mineral micro-inclusions within its crystal matrix, measure

2026

1.91 Carats Natural Mozambique Sage Green Tourmaline Loose Gemstone, 26AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

0.90 Carats Natural Mozambique Deep Forest Green Tourmaline Loose Gemstone, 41AK: This transparent Mozambique tourmaline holds a rich saturated deep forest green tone, featuring subtle natural fine fissures and minor mineral surface flecks within the crystal, sized 8x5.5x3.2mm. Moz

2026

0.90 Carats Natural Mozambique Deep Forest Green Tourmaline Loose Gemstone, 41AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.64 Carats Natural Mozambique Sage Green Tourmaline Loose Gemstone, 31AK: This transparent Mozambique tourmaline displays a delicate light sage green shade, featuring subtle natural fine fissures and scattered tiny mineral micro-inclusions within its crystal matrix, measure

2026

1.64 Carats Natural Mozambique Sage Green Tourmaline Loose Gemstone, 31AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

2.33 Carats Natural Mozambique Paraiba Color Tourmaline Loose Gemstone, 22AK: This transparent Mozambique tourmaline boasts vivid Paraiba-toned cool aqua body tone, interspersed with delicate natural internal fissures and tiny reflective mineral flecks throughout the crystal ma

2026

2.33 Carats Natural Mozambique Paraiba Color Tourmaline Loose Gemstone, 22AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

Ancient Egyptian Wedjat Eye Stone Protective Amulet (664-30 BCE), 87AE: Hand-carved mottled cream-brown fossil stone amulet shaped as the sacred Wedjat Eye of Horus, a core ancient Egyptian talisman symbolizing healing, protection, divine sight and warding off evil. Detai

2026

Ancient Egyptian Wedjat Eye Stone Protective Amulet (664-30 BCE), 87AE

ThousandPlanetThung Wat Don, Sathorn, Bangkok

122.45 Ct Natural Blue Shaded Labradorite Pear Cab: Weight - 122.45 Ct / Size - 56.00 x 36.00 x 8.50 mm / Shape - Excellent Pear Cab / Clarity - Opaque / Origin - Africa / Treatment - None

2026

122.45 Ct Natural Blue Shaded Labradorite Pear Cab

Gems AuctionBangkok, TH

111.50 Ct Natural Labradorite Oval Cab: Weight - 111.50 Ct / Size - 47.00 x 37.00 x 8.10 mm / Shape - Excellent Oval Cab / Clarity - Opaque / Origin - Africa / Treatment - None

2026

111.50 Ct Natural Labradorite Oval Cab

Gems AuctionBangkok, TH

33.76 Ct Natural Moss Agate Fancy Cut Pair: weight - 33.76 Ct / Dimensions - 38.00 x 15.00 x 4.80 mm / 2 Pc's / Shape - Excellent Fancy Cut / Origin - Brazil / Treatment - None

2026

33.76 Ct Natural Moss Agate Fancy Cut Pair

Gems AuctionBangkok, TH

4.32 Ct Natural Green Grandidierite Octagon Cut: Weight - 4.32 Ct / Dimensions - 14.10 x 7.00 x 5.00 mm / Shape - Octagon Cut / Clarity - SI / Origin - Madagascar / Treatment - None

2026

4.32 Ct Natural Green Grandidierite Octagon Cut

Gems AuctionBangkok, TH

103.27 Ct Natural Azurite Turquoise Oval Cab: Weight - 103.27 Ct / Size - 40.00 x 28.00 x 10.50 mm / Good Color / Oval Cab - Ready for Jewellery Setting / Origin - Egypt / Treatment - None

2026

103.27 Ct Natural Azurite Turquoise Oval Cab

Gems AuctionBangkok, TH

8.50 Ct Natural Swiss Blue Topaz Top Luster Hexagonal Flower Cut: Weight - 8.50 Ct / Dimensions - 12.10 x 12.10 x 7.80 mm /Shape & Cut - Hexa Cut / Color - Blue / Transparency - VVS / Origin - Brazil / Comments - Irradiated

2026

8.50 Ct Natural Swiss Blue Topaz Top Luster Hexagonal Flower Cut

Gems AuctionBangkok, TH

0.92 Ct Natural Spinel Octagon Cut: Weight - 0.92 Ct / Size - 6.30 x 4.50 x 3.60 mm / Shape - Octagon Cut / Color - Deep Blue / Clarity - VS / Origin - Mozambique / Treatment - None

2026

0.92 Ct Natural Spinel Octagon Cut

Gems AuctionBangkok, TH

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24

Fossils Auctions

Saber-Toothed Tiger Fossil Skull, Late Miocene — Complete Dentition

Mimbres Black-on-White Pottery Bowl - Standing Woman, Kill Hole

Persian Siljuk Bronze Lamp Stand, Khorasan Region

Fine Fossils, Native American, Asian, Ethno

Artemis Fine Arts

Starts on:

Louisville, CO, US

4 days Left

Michoacan Pottery Figure - Seated Dignitary in Headdress

Prehistoric Complete Oreodont Femur Bone Fossil

18th c. Italian Engraving after Reni - Apollo & Aurora

VARIETY SALE Pre-Columbian, Ethnographic Art

Artemis Fine Arts

Starts on:

Louisville, CO, US

5 days Left

4 11/16" Thebes, Dickey COA, Calhoun Co., Illinois, Found Near the Illinois River

18" x 8 1/2" Large Mammoth Jaw and Tooth Fossil, Recovered from Alaskan Permafrost

10 3/4" Pre-Columbian Moche Culture Stirrup Vessel, Northern Coastal Peru

Pre-Columbian, Native American Artifacts

Heartland Artifact Auctions

Starts on:

Quincy, IL, US

7 days Left

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