Coral Fossils

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$4.26 Carats Natural Brazilian Soft Sky Blue Aquamarine Loose Gemstone, 44AG: This serene sky blue aquamarine carries smooth icy pale blue saturation with gentle light refracting across its polished facets, measured at 14x11x5.2mm, its cool tranquil tone lends effortless elegan$

2026

4.26 Carats Natural Brazilian Soft Sky Blue Aquamarine Loose Gemstone, 44AG

ThousandPlanetThung Wat Don, Sathorn, Bangkok

35.25ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 68AX: 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

35.25ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 68AX

ThousandPlanetThung Wat Don, Sathorn, Bangkok

48.84ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 30FC: 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

48.84ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 30FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

3.19 Carats Natural Pakistani Olive Green Rutilated Peridot Loose Gemstone, 86AH: This translucent peridot displays soft olive green base tone intersected by prominent thin dark needle-like rutile inclusions that create striking linear internal patterns, measured at 8.7x8.5x5.2mm.

2026

3.19 Carats Natural Pakistani Olive Green Rutilated Peridot Loose Gemstone, 86AH

ThousandPlanetThung Wat Don, Sathorn, Bangkok

9.86 Carats Natural Madagascar Soft Rose Pink Heated Ruby Cabochon Loose Gemstone, 94AH: 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 13.2x11.3x5.6mm.

2026

9.86 Carats Natural Madagascar Soft Rose Pink Heated Ruby Cabochon Loose Gemstone, 94AH

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.86 Carats Natural Ceylon Chrysoberyl Cat's Eye Loose Gemstone, 1AL: This polished Ceylon chrysoberyl cabochon displays a sharp, distinct silvery chatoyant band running across its smooth surface, formed by dense aligned microscopic rutile inclusions inherent to genuine

2026

1.86 Carats Natural Ceylon Chrysoberyl Cat's Eye Loose Gemstone, 1AL

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.29 Carats Natural Mozambique Soft Pink Tourmaline Loose Gemstone, 49AK: This transparent Mozambique tourmaline carries gentle pastel pink saturation, interspersed with thin native linear mineral inclusions and faint natural internal fissures across the crystal interior, m

2026

1.29 Carats Natural Mozambique Soft Pink Tourmaline Loose Gemstone, 49AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.73 Carats Natural Mozambique Deep Olive Green Tourmaline Loose Gemstone, 52AK: This transparent Mozambique tourmaline exhibits a rich saturated deep olive green shade, with faint natural internal surface striations and minimal tiny mineral traces within the crystal body, measure

2026

1.73 Carats Natural Mozambique Deep Olive Green Tourmaline Loose Gemstone, 52AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.12 Carats Natural Mozambique Pastel Pink Blue Bi-Color Tourmaline Loose Gemstone, 29AK: This transparent Mozambique tourmaline carries soft pastel pink and cool pale blue natural color zoning, with fine native needle inclusions and faint subtle fissures scattered throughout the crystal i

2026

1.12 Carats Natural Mozambique Pastel Pink Blue Bi-Color Tourmaline Loose Gemstone, 29AK

ThousandPlanetThung Wat Don, Sathorn, Bangkok

53.10ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 35AY: 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

53.10ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 35AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

19.47ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 77FC: 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

19.47ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 77FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

73ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 24FC: 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

73ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 24FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

66.24ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 3AX: 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

66.24ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 3AX

ThousandPlanetThung Wat Don, Sathorn, Bangkok

6.05 Carats Natural Ceylon Soft Peach Pink Moonstone Cabochon Loose Gemstone, 10AG: This warm soft peach pink moonstone features delicate sparkling mineral flecks scattered throughout its smooth surface paired with faint flowing adularescent glow, measured at 14.1x10.7x5.8mm, its gen

2026

6.05 Carats Natural Ceylon Soft Peach Pink Moonstone Cabochon Loose Gemstone, 10AG

ThousandPlanetThung Wat Don, Sathorn, Bangkok

41.17ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 17AX: 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

41.17ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 17AX

ThousandPlanetThung Wat Don, Sathorn, Bangkok

18.21ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 12AV: Hand polished compact rounded square cushion cabochon formed from natural Queensland matrix boulder opal, featuring warm speckled brown ironstone host matrix crisscrossed with intricate branching opal

2026

18.21ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 12AV

ThousandPlanetThung Wat Don, Sathorn, Bangkok

25.27ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 69AY: 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

25.27ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 69AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

51.86ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 18AY: 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

51.86ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 18AY

ThousandPlanetThung Wat Don, Sathorn, Bangkok

25.89ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 74FC: 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

25.89ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 74FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

2.65 Carats Natural Brazilian Sky Blue Sugarloaf Aquamarine Loose Gemstone, 68AG: This smooth sugarloaf aquamarine features soft milky sky blue coloring with fine natural fibrous internal inclusions that lend gentle diffused luster across its polished surface, measured at 10.5x7.9x

2026

2.65 Carats Natural Brazilian Sky Blue Sugarloaf Aquamarine Loose Gemstone, 68AG

ThousandPlanetThung Wat Don, Sathorn, Bangkok

1.75 Carats Natural Brazilian Sky Blue Sugarloaf Aquamarine Loose Gemstone, 66AG: This smooth sugarloaf aquamarine features soft milky sky blue coloring with fine natural fibrous internal inclusions that lend gentle diffused luster across its polished surface, measured at 8.7x6.2x3

2026

1.75 Carats Natural Brazilian Sky Blue Sugarloaf Aquamarine Loose Gemstone, 66AG

ThousandPlanetThung Wat Don, Sathorn, Bangkok

$3.25 Carats Natural Brazilian Soft Sky Blue Aquamarine Loose Gemstone, 33AG: This serene sky blue aquamarine carries smooth icy pale blue saturation with gentle light refracting across its polished facets, measured at 10.1x8.7x6.2mm, its cool tranquil tone lends effortless ele$

2026

3.25 Carats Natural Brazilian Soft Sky Blue Aquamarine Loose Gemstone, 33AG

ThousandPlanetThung Wat Don, Sathorn, Bangkok

3.06 Carats Natural Pakistani Olive Green Rutilated Peridot Loose Gemstone, 89AH: This translucent peridot displays soft olive green base tone intersected by prominent thin dark needle-like rutile inclusions that create striking linear internal patterns, measured at 10.5x7.2x5mm. P

2026

3.06 Carats Natural Pakistani Olive Green Rutilated Peridot Loose Gemstone, 89AH

ThousandPlanetThung Wat Don, Sathorn, Bangkok

2.25 Carats Natural Pakistani Olive Green Rutilated Peridot Loose Gemstone, 88AH: This translucent peridot displays soft olive green base tone intersected by prominent thin dark needle-like rutile inclusions that create striking linear internal patterns, measured at 8x6.4x5mm. Paki

2026

2.25 Carats Natural Pakistani Olive Green Rutilated Peridot Loose Gemstone, 88AH

ThousandPlanetThung Wat Don, Sathorn, Bangkok

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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

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