Fossil Fossils

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1.49 Ct Natural Almandite Garnet Pear Cut: Weight - 1.49 Ct / Dimensions - 7.10 x 6.90 x 4.30 mm / Shape - Pear Cut / Clarity - VVS / Origin - Nigeria / Treatment - None

2026

1.49 Ct Natural Almandite Garnet Pear Cut

Gems AuctionBangkok, TH

0.21ct Untreated Natural Fancy Diamond Loose Gemstone, 74BH: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 4.9x3x1.8mm. Precision

2026

0.21ct Untreated Natural Fancy Diamond Loose Gemstone, 74BH

ThousandPlanetSathorn, Bangkok

41ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 94BM: 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

41ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 94BM

ThousandPlanetSathorn, Bangkok

2.91ct Natural Siamese 6-Ray Black Star Sapphire Loose Gemstone, 38BD: This polished star sapphire originates from classic Siamese mining deposits, featuring a deep dark crystalline base with fine native mineral traces trapped within its structure, sized at calibrated 9x

2026

2.91ct Natural Siamese 6-Ray Black Star Sapphire Loose Gemstone, 38BD

ThousandPlanetSathorn, Bangkok

0.21ct Untreated Natural Fancy Diamond Loose Gemstone, 82BH: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 2.9x2.8x2.5mm. Precisi

2026

0.21ct Untreated Natural Fancy Diamond Loose Gemstone, 82BH

ThousandPlanetSathorn, Bangkok

36ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 86BL: 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

36ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 86BL

ThousandPlanetSathorn, Bangkok

83ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 8FC: 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

83ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 8FC

ThousandPlanetSathorn, Bangkok

0.12ct Untreated Natural Fancy Diamond Loose Gemstone, 87BH: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 3.7x2.8x1.8mm. Precisi

2026

0.12ct Untreated Natural Fancy Diamond Loose Gemstone, 87BH

ThousandPlanetSathorn, Bangkok

0.20ct Untreated Natural Fancy Diamond Loose Gemstone, 92BH: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 3x2.9x2.3mm. Precision

2026

0.20ct Untreated Natural Fancy Diamond Loose Gemstone, 92BH

ThousandPlanetSathorn, Bangkok

13.82ct Natural Baltic Polished Loose Freeform Amber Gemstone, 41EB: This smoothly polished freeform amber piece carries warm translucent organic clarity with fine natural fossil flecks and tiny mineral inclusions suspended throughout its 36x14mm flowing unstructured s

2026

13.82ct Natural Baltic Polished Loose Freeform Amber Gemstone, 41EB

ThousandPlanetSathorn, Bangkok

Lot of misc. geos and fossils: Lot of misc. geos and fossils, 0.4"x0.65"x0.18" - 5.3"x5.4"x0.9" (box:1.7"x9.65"x5.85")

2026

Lot of misc. geos and fossils

International Auction GalleryAnaheim, CA

2.12 Carats Natural Mozambique Soft Pastel Pink Tourmaline Loose Gemstone, 21AK, 21AK: This translucent Mozambique tourmaline holds gentle muted pink saturation, accented with delicate natural internal fissures and fine mineral trace inclusions that mark its unmodified natural crystal s

2026

2.12 Carats Natural Mozambique Soft Pastel Pink Tourmaline Loose Gemstone, 21AK, 21AK

ThousandPlanetSathorn, Bangkok

3.47ct Natural Unheated Burmese Blue Star Sapphire Oval Cabochon Loose Gemstone, 48BQ: This smoothly polished oval cabochon features natural Burmese blue star sapphire, formed with densely aligned rutile needle inclusions required to produce asterism. The gently domed surface is expertl

2026

3.47ct Natural Unheated Burmese Blue Star Sapphire Oval Cabochon Loose Gemstone, 48BQ

ThousandPlanetSathorn, Bangkok

69.91ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 92AY, 92AY: 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

69.91ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 92AY, 92AY

ThousandPlanetSathorn, Bangkok

3.63ct Natural Unheated Burmese Blue Star Sapphire Oval Cabochon Loose Gemstone, 47BQ: This smoothly polished oval cabochon features natural Burmese blue star sapphire, formed with densely aligned rutile needle inclusions required to produce asterism. The gently domed surface is expertl

2026

3.63ct Natural Unheated Burmese Blue Star Sapphire Oval Cabochon Loose Gemstone, 47BQ

ThousandPlanetSathorn, Bangkok

Lot of large shells: Lot of large shells, 7.5"x3.2"x2.75" - 8.35"x6.65"x2.8"

2026

Lot of large shells

International Auction GalleryAnaheim, CA

40ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 61BM, 61BM: 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

40ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 61BM, 61BM

ThousandPlanetSathorn, Bangkok

33ct Natural Brazilian Black Rutile Quartz Cabochon Loose Gemstone, 53BM, 53BM: This polished cabochon of natural rutile quartz features countless distinct slender black rutile needle inclusions suspended within the clear quartz host crystal. The smooth domed surface enables full

2026

33ct Natural Brazilian Black Rutile Quartz Cabochon Loose Gemstone, 53BM, 53BM

ThousandPlanetSathorn, Bangkok

6.20ct Natural Unheated Burmese Blue Star Sapphire Oval Cabochon Loose Gemstone, 56BQ: This smoothly polished oval cabochon features natural Burmese blue star sapphire, formed with densely aligned rutile needle inclusions required to produce asterism. The gently domed surface is expertl

2026

6.20ct Natural Unheated Burmese Blue Star Sapphire Oval Cabochon Loose Gemstone, 56BQ

ThousandPlanetSathorn, Bangkok

51ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 22BM, 22BM: 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

51ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 22BM, 22BM

ThousandPlanetSathorn, Bangkok

2.45ct Natural Brazilian Soft Sky Blue Faceted Aquamarine Loose Gemstone, 4AS, 4AS: This expertly faceted aquamarine carries a gentle soft sky blue translucent body with faint fine natural internal mineral markings visible through its polished reflective facets within its 9.3x8.3x4.9

2026

2.45ct Natural Brazilian Soft Sky Blue Faceted Aquamarine Loose Gemstone, 4AS, 4AS

ThousandPlanetSathorn, Bangkok

0.23ct Untreated Natural Fancy Diamond Loose Gemstone, 83BH: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 3.2x3x2.4mm. Precision

2026

0.23ct Untreated Natural Fancy Diamond Loose Gemstone, 83BH

ThousandPlanetSathorn, Bangkok

Large collection of seashells: Large collection of seashells

2026

Large collection of seashells

International Auction GalleryAnaheim, CA

2.65ct Natural Brazilian Soft Sky Blue Faceted Aquamarine Loose Gemstone, 10AS, 10AS: This expertly faceted aquamarine carries a gentle soft sky blue translucent body with faint fine natural internal mineral markings visible through its polished reflective facets within its 10.9x8.9x4.

2026

2.65ct Natural Brazilian Soft Sky Blue Faceted Aquamarine Loose Gemstone, 10AS, 10AS

ThousandPlanetSathorn, Bangkok

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Fossils Auctions

Michoacan Pottery Figure - Seated Dignitary in Headdress

Prehistoric Complete Oreodont Femur Bone Fossil

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

Summer Marketplace | Ancient & Ethnographic

Artemis Fine Arts

Starts on:

Louisville, CO, US

6 days Left

HAND KNAPPED ARROWHEADS ROCK STONE LAPIDARY SPECIMEN

MIXED LOT ROCK STONE LAPIDARY SPECIMEN

GARNET AND PERIDOT ROCK STONE LAPIDARY SPECIMEN

TURQUOISE TREASURES Mineral Showcase B

Col. Christie Hatman Auctioneers

Starts on:

Thayer, MO, 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

2 days Left

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