Coral Fossils

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90.11ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 35AX: 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

90.11ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 35AX

ThousandPlanetSathorn, Bangkok

96.13ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 2AX: 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

96.13ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 2AX

ThousandPlanetSathorn, Bangkok

59ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 25FC: 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

59ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 25FC

ThousandPlanetSathorn, Bangkok

43.88ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 13AY: 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

43.88ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 13AY

ThousandPlanetSathorn, Bangkok

74ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 34AX: 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

74ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 34AX

ThousandPlanetSathorn, Bangkok

0.23ct Natural Fancy Pinkish Purple Diamond Loose Gemstone, 21BH: This polished natural diamond displays rich pinkish-purple body saturation, with subtle fine microscopic mineral specks distributed within its crystal interior, measured at calibrated dimensions of 4.

2026

0.23ct Natural Fancy Pinkish Purple Diamond Loose Gemstone, 21BH

ThousandPlanetSathorn, Bangkok

3.48 Carats Natural Brazil Vivid Green Topaz Loose Gemstone, 19FE: This natural Brazil topaz with recorded dimensions of 14.3x6x4mm, featuring a bright saturated green tone achieved via color coating treatment across the gem surface, with faint subtle natural interna

2026

3.48 Carats Natural Brazil Vivid Green Topaz Loose Gemstone, 19FE

ThousandPlanetSathorn, Bangkok

12.20 Carats Natural Madagascar Soft Rose Pink Heated Ruby Cabochon Loose Gemstone, 64FE: 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 14.5x12.6x6.6mm.

2026

12.20 Carats Natural Madagascar Soft Rose Pink Heated Ruby Cabochon Loose Gemstone, 64FE

ThousandPlanetSathorn, Bangkok

17.70ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 6AY: 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

17.70ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 6AY

ThousandPlanetSathorn, Bangkok

0.22ct Natural Fancy Pinkish Purple Diamond Loose Gemstone, 16BG: This polished natural diamond displays rich pinkish-purple body saturation, with subtle fine microscopic mineral specks distributed within its crystal interior, measured at calibrated dimensions of 3.

2026

0.22ct Natural Fancy Pinkish Purple Diamond Loose Gemstone, 16BG

ThousandPlanetSathorn, Bangkok

0.15ct Natural Fancy Deep Pink Diamond Loose Gemstone, 30BH: This polished natural fancy diamond features rich deep pink colouration, measured at calibrated dimensions of 3.8x2.9x2mm. Carefully proportioned pear faceting delivers dynamic light movement, highlig

2026

0.15ct Natural Fancy Deep Pink Diamond Loose Gemstone, 30BH

ThousandPlanetSathorn, Bangkok

0.25ct Natural Fancy Deep Pink Diamond Loose Gemstone, 33BH: This polished natural fancy diamond features rich deep pink colouration, measured at calibrated dimensions of 4.2x3x2.2mm. Carefully proportioned pear faceting delivers dynamic light movement, highlig

2026

0.25ct Natural Fancy Deep Pink Diamond Loose Gemstone, 33BH

ThousandPlanetSathorn, Bangkok

(4) QUARTZ & LAPIS OBELISKS: (2) GREEN QUARTZ OBELISKS / ROSE QUARTZ OBELISK / LAPIS PYRAMID - LARGEST IS 5" TALL (PYRAMID HAS CHIP ON TOP)

2026

(4) QUARTZ & LAPIS OBELISKS

Echoes Antiques & Auction Gallery, Inc.East Islip, NY

2.16ct Natural Ethiopian Welo Black Smoked Faceted Opal, 11EB: This fully faceted finished opal specimen displays vivid shifting play of color across polished geometric facets within its 10x7.8x6.1mm calibrated dimensions, the dark base body amplifies light movem

2026

2.16ct Natural Ethiopian Welo Black Smoked Faceted Opal, 11EB

ThousandPlanetSathorn, Bangkok

18.40ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 55AY: 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

18.40ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 55AY

ThousandPlanetSathorn, Bangkok

1.34ct Natural Ethiopian Welo Black Smoked Faceted Opal, 19EB: This fully faceted finished opal specimen displays vivid shifting play of color across polished geometric facets within its 9.7x6.4x4.9mm calibrated dimensions, the dark base body amplifies light move

2026

1.34ct Natural Ethiopian Welo Black Smoked Faceted Opal, 19EB

ThousandPlanetSathorn, Bangkok

55ct Natural Siberian Seraphinite Polished Rough Slab, 75AR: This polished mineral slab is natural seraphinite originating from Siberian deposits, displaying characteristic radiating crystalline fibrous formations with layered deep forest and silvery green band

2026

55ct Natural Siberian Seraphinite Polished Rough Slab, 75AR

ThousandPlanetSathorn, Bangkok

16ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 62BM: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

2026

16ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 62BM

ThousandPlanetSathorn, Bangkok

0.28ct Natural Fancy Deep Pink Diamond Loose Gemstone, 28BH: This polished natural fancy diamond features rich deep pink colouration, measured at calibrated dimensions of 4.1x3.5x2.3mm. Carefully proportioned pear faceting delivers dynamic light movement, highl

2026

0.28ct Natural Fancy Deep Pink Diamond Loose Gemstone, 28BH

ThousandPlanetSathorn, Bangkok

0.40ct Natural Untreated Salt And Pepper Round Rose Cut Diamond Loose Gemstone, 48BH: This polished natural salt and pepper diamond features a translucent pale base naturally scattered with distinctive dark mineral speckles and inclusions throughout its crystal interior, measured at ca

2026

0.40ct Natural Untreated Salt And Pepper Round Rose Cut Diamond Loose Gemstone, 48BH

ThousandPlanetSathorn, Bangkok

0.19ct Natural Fancy Deep Pink Diamond Loose Gemstone, 29BH: This polished natural fancy diamond features rich deep pink colouration, measured at calibrated dimensions of 3.2x3.1x1.8mm. Carefully proportioned pear faceting delivers dynamic light movement, highl

2026

0.19ct Natural Fancy Deep Pink Diamond Loose Gemstone, 29BH

ThousandPlanetSathorn, Bangkok

0.20ct Untreated Natural Fancy Diamond Loose Gemstone, 73BH: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 4.2x3.2x2mm. Precision

2026

0.20ct Untreated Natural Fancy Diamond Loose Gemstone, 73BH

ThousandPlanetSathorn, Bangkok

25ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 96BL: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

2026

25ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 96BL

ThousandPlanetSathorn, Bangkok

0.25ct Natural Fancy Deep Pink Diamond Loose Gemstone, 25BH: This polished natural fancy diamond features rich deep pink colouration, measured at calibrated dimensions of 35.3x3.5x2mm. Carefully proportioned pear faceting delivers dynamic light movement, highli

2026

0.25ct Natural Fancy Deep Pink Diamond Loose Gemstone, 25BH

ThousandPlanetSathorn, Bangkok

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Fossils Auctions

Large Chancay Male Cuchimilco Figure, Peru

Anasazi Tularosa Style Storage Olla, Cibola Tradition

Mojave Glass Beaded Netted Collar

ARTE & ARTEMIS Pre-Columbian, Native American

Artemis Fine Arts

Starts on:

Louisville, CO, US

8 hrs Left

Large Congo Shrine Leopard Figure, Painted

Large Macginitiea Nobilis Fossil Leaf, Fort Union Formation, Paleocene

16th C. Franco-Flemish Stained Glass Panel, Pieta

ARTE & ARTEMIS Tribal, Ethnographic, Ancient

Artemis Fine Arts

Starts on:

Louisville, CO, US

1 day 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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