Modern Fossils

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21.04 Carats Winton Boulder Opal Rough Slice - Natural Australian Stone, 43XP: This substantial Winton boulder opal rough slice showcases a striking horizontal band of vivid sky-blue and cerulean play-of-color, nestled within its natural ironstone host rock. Measuring precisely

2026

21.04 Carats Winton Boulder Opal Rough Slice - Natural Australian Stone, 43XP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

35.06 Carats Winton Boulder Opal Rough Slab - Natural Australian Stone, 38XP: This impressive 35.06ct Winton boulder opal rough slab features a dynamic mosaic of luminous peacock blue and seafoam-green iridescence, interwoven with intricate ironstone matrix patterns. Measuring

2026

35.06 Carats Winton Boulder Opal Rough Slab - Natural Australian Stone, 38XP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

34.92 Carats Winton Boulder Opal Rough Slab - Natural Australian Stone, 42XP: This striking Winton boulder opal rough slab showcases a vivid, iridescent patch of emerald-green and electric-blue play-of-color, set against a soft sky-blue opal base and encased in a rugged ironsto

2026

34.92 Carats Winton Boulder Opal Rough Slab - Natural Australian Stone, 42XP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

29.01 Carats Winton Boulder Opal Rough Slab - Natural Australian Opion, 35XP: This striking 29.01ct Winton boulder opal rough slab boasts a mesmerizing blend of aquatic blue and seafoam-green iridescence, embedded within its natural ironstone matrix. Measuring a substantial 27

2026

29.01 Carats Winton Boulder Opal Rough Slab - Natural Australian Opion, 35XP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

5.82 Carats Blue Sapphire - Oval Faceted Gemstone, 88WE: Oval faceted blue sapphire gemstone, crafted from sapphire material. The stone exhibits a rich, deep royal blue hue with subtle tonal variations and natural internal inclusions characteristic of genui

2026

5.82 Carats Blue Sapphire - Oval Faceted Gemstone, 88WE

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

12.80 Carats Iridescent Sky Blue Winton Opal Rough - Natural Australian Specimen 18x11mm, 80XM: This exceptional rough opal from Winton, Australia, captivates with a vivid play of color, where intense flashes of sky blue and subtle turquoise swirl through a milky, translucent base. The natural,

2026

12.80 Carats Iridescent Sky Blue Winton Opal Rough - Natural Australian Specimen 18x11mm, 80XM

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

17.32 Carats Winton Boulder Opal Rough - Natural Australian Stone, 37XP: This substantial Winton boulder opal rough showcases a striking band of ethereal sky-blue and aqua-green play-of-color, nestled within its natural ironstone host rock. Measuring precisely at 29.3 x 11

2026

17.32 Carats Winton Boulder Opal Rough - Natural Australian Stone, 37XP

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

4.47 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 14.8x8.5mm, 5XM: This striking 4.47-carat Koroit boulder opal cabochon is a natural geological masterpiece, featuring delicate, branching veins of iridescent play-of-color that snake through a deep, chocolate-brown ir

2026

4.47 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 14.8x8.5mm, 5XM

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

11.74Ct Natural Labradorite Hand Carved Cut Gemstone, 552B: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

11.74Ct Natural Labradorite Hand Carved Cut Gemstone, 552B

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Tourmaline 10.65Ct Natural Unheated Tourmaline Green Color Rough Nigeria Mine LOT, 1115B: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

Tourmaline 10.65Ct Natural Unheated Tourmaline Green Color Rough Nigeria Mine LOT, 1115B

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

5.25Ct Natural Green Moss Agate - India Gemstone - Oval Faceted, 247MZ: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

5.25Ct Natural Green Moss Agate - India Gemstone - Oval Faceted, 247MZ

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

15.43Ct Natural Green Moss Agate In Lot - India Gemstone - Step Cut Faceted, 380MZ: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

15.43Ct Natural Green Moss Agate In Lot - India Gemstone - Step Cut Faceted, 380MZ

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Blue Sapphire 2.26Ct Rectangle Cut Natural Thailand Blue Sapphire, 1149B: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

Blue Sapphire 2.26Ct Rectangle Cut Natural Thailand Blue Sapphire, 1149B

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Tourmaline 11.70Ct Natural Unheated Tourmaline Green Color Rough Nigeria Mine LOT, 281B: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

Tourmaline 11.70Ct Natural Unheated Tourmaline Green Color Rough Nigeria Mine LOT, 281B

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Dendrite Opal 3.98Ct Fancy Cut Natural Faceted Dendrite Opal, 1200MZ: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

Dendrite Opal 3.98Ct Fancy Cut Natural Faceted Dendrite Opal, 1200MZ

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Tourmaline 113.15Ct Large Natural Pink Green Tourmaline Rough Nigeria Mine, 251A: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

Tourmaline 113.15Ct Large Natural Pink Green Tourmaline Rough Nigeria Mine, 251A

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

22.40Ct Natural Freshwater Rainbow Freeform Pearl, 838A: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

22.40Ct Natural Freshwater Rainbow Freeform Pearl, 838A

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Aquamarine 8.92Ct Natural Blue Aquamarine Smooth Cabochon (OT6979), 572A: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

Aquamarine 8.92Ct Natural Blue Aquamarine Smooth Cabochon (OT6979), 572A

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

4.41CTS Natural Hessonite Garnet Step Cut Pair for Jewelry Making, 648MZ: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

2026

4.41CTS Natural Hessonite Garnet Step Cut Pair for Jewelry Making, 648MZ

Ksmith Heritage AuctioneersJelutong, Penang, PENANG

Lab Grown 3.02 ct, Color E/VS2 IGI Graded Diamond: Lab/Natural Diamond: Lab Carat Weight: 3.02 Color Grade: E Clarity Grade: VS2 Model: CUSHION Fluorescence: None Polish: EX Symmetry: EX Depth: 66.4 Table: 66 Size: 10.15-7.62*5.06 Certificate Number:

2026

Lab Grown 3.02 ct, Color E/VS2 IGI Graded Diamond

Robinhood AuctionsLas Vegas, NV

Petrified Wood Specimen Display, Nuclear Reactor: Petrified Fossilized Wood Geological Specimen Display. Two petrified wood specimens mounted to wood with metal wire. Remnants of a descriptive card remain, with the words "first nuclear reactor" legib

2026

Petrified Wood Specimen Display, Nuclear Reactor

PUBLIC SALEHudson, NY

Pink Stone Sculpture of a Nude Rock Climber, Signed: Contemporary Pink Stone Sculpture of a Nude Rock Climber, Signed. Unusual sculpture of a naked man climbing a natural chunk of pink stone, possibly rose quartz or marble. Signed Pfieffer 2005. Dimensi

2026

Pink Stone Sculpture of a Nude Rock Climber, Signed

PUBLIC SALEHudson, NY

George Brettingham Sowerby I – Navicella (Studies of Freshwater Limpets): "Navicella" presents a systematic arrangement of slipper-shaped freshwater shells, showcasing the smooth, elliptical forms and varied surface patterns of the genus now generally classified as Septaria

2026

George Brettingham Sowerby I – Navicella (Studies of Freshwater Limpets)

Proverde AuctionsAvignon, Provence-Alpes-C?te d?Azur

Green River Formation Fossil Fish Plate – Two Knightia + Back Fossil – Wyoming: Fossil fish plate from the Green River Formation, Kemmerer, Wyoming, dating to the Eocene epoch (approximately 50 million years old). The front of the slab contains two well preserved Knightia fish fo

2026

Green River Formation Fossil Fish Plate – Two Knightia + Back Fossil – Wyoming

North American Artifact AuctionsHannibal, MO

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24

Fossils Auctions

Beautiful Malachite Dish, 454 grams

Quartz Carved Cockatoos on Pyrite Cluster, 104 grams

Fine Ancient Meteorite Specimen

Summer Jewelry, Fossils and Minerals Auction

Inspired Auctions

Starts on:

Brea, CA, US

Arietites bucklandi.Cenoceras sp.

A SPRING COUNTRYSIDE SCENE

A BLACK 'DIPLOMAT' ARMCHAIR

2026 Ethereal Auctioneers Spring Auction-1

Ethereal Auctioneers

Starts on:

Taipei City, ???, TW

24 hrs Left

AMETHYST ROCK STONE LAPIDARY SPECIMEN

MIXED STONE TREE ROCK STONE LAPIDARY SPECIMEN

COIN AND PLANK NECKLACE

ROUGH ROCKS & RARITIES Bulk Lots Jewelry

Col. Christie Hatman Auctioneers

Starts on:

Thayer, MO, US

2 days Left

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