Cybis Fossils

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12.60 Carat Natural Blue Green Sapphire Brilliant Emerald Step Cut EGL Certified: An architectural gemstone. It combines the high durability with elongated, mirror-like step facets that emphasize depth and a rich teal hue and fiery sparkle.

2026

12.60 Carat Natural Blue Green Sapphire Brilliant Emerald Step Cut EGL Certified

California GemstonesOceanside, CA

12.25 Carat Natural Utah Bixbite Oval Cut EGL Certified: Sourced in the Wah Wah Mountains, Beaver County, Utah. An exceptional rare, museum-grade collector's gemstone due to its size and geographic specificity. Bixbite—scientifically classified as Red Ber

2026

12.25 Carat Natural Utah Bixbite Oval Cut EGL Certified

California GemstonesOceanside, CA

10.15 Carat Natural Ceylon Blue Green Sapphire Oval Cut EGL Certified: Sourced from the legendary mines of Ceylon, this rare gemstone showcases a captivating, shifting hue that perfectly blends deep ocean blues with vibrant forest greens. Its impressive double-digit cara

2026

10.15 Carat Natural Ceylon Blue Green Sapphire Oval Cut EGL Certified

California GemstonesOceanside, CA

Rock — Dinosaur or Mosasaur Tooth Fossil in Sandstone Matrix Natural Specimen: Rock — Dinosaur or Mosasaur Tooth Fossil in Sandstone Matrix Natural Specimen

2026

Rock — Dinosaur or Mosasaur Tooth Fossil in Sandstone Matrix Natural Specimen

Col. Christie Hatman AuctioneersThayer, MO

AAA+ Certified Quality Natural Blue Sapphire 1.6mm Round Cut Calibrated Loose Gemstones Lot, Gem239: AAA+ Certified Quality Natural Blue Sapphire 1.6mm Round Cut Calibrated Loose Gemstones Lot, Gem239

2026

AAA+ Certified Quality Natural Blue Sapphire 1.6mm Round Cut Calibrated Loose Gemstones Lot, Gem239

ABC Rugs Kilims, Inc.Oxnard, CA

Fossilized Dinosaur Tooth Specimen: A large fossilized theropod dinosaur tooth with a serrated brown enamel crown and lighter root section, bearing some matrix sediment.

2026

Fossilized Dinosaur Tooth Specimen

Col. Christie Hatman AuctioneersThayer, MO

Petrified Wood Rough Slab Specimens: Group of four rough petrified wood slabs displaying banded brown and cream grain patterns, 261 grams total.

2026

Petrified Wood Rough Slab Specimens

Col. Christie Hatman AuctioneersThayer, MO

Blue Agate Sphere: Polished blue banded agate sphere/orb on display.

2026

Blue Agate Sphere

Col. Christie Hatman AuctioneersThayer, MO

Vintage 8' Orthoceras Fossil Stone Bowl: Polished Fossil Bowl, hand-carved from black fossil-bearing stone and featuring numerous embedded prehistoric cephalopod fossils dating back 400 million years. The striking contrast between the dark p

2026

Vintage 8' Orthoceras Fossil Stone Bowl

Kellie's Estate SalesOkemos, MI

1.51 Carats Natural Ethiopian Welo Pink Fire Opal Oval Faceted Loose Gemstone, 74XX: This opal is sourced from the Welo mining region of Ethiopia and crafted into faceted form via professional lapidary cutting with smooth polished facets across the exterior surface. Subtle natural int

2026

1.51 Carats Natural Ethiopian Welo Pink Fire Opal Oval Faceted Loose Gemstone, 74XX

Lazo HeritageSathorn, Bangkok

49.60ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 23YL: 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

49.60ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 23YL

Lazo HeritageSathorn, Bangkok

$1.17 Carats Clear Moissanite Loose Gemstone, 37WP: This moissanite features dimensions of 6.9x4.2mm, a lab-created silicon carbide gemstone prized for its exceptional refractive index that generates brilliant light dispersion and consistent sparkle in$

2026

1.17 Carats Clear Moissanite Loose Gemstone, 37WP

Lazo HeritageSathorn, Bangkok

24.18ct Natural Brazilian Morganite Oval Faceted Loose Gemstone, 24BY: This precision oval faceted gemstone is natural morganite sourced from Brazil. It carries soft pastel pink colouration with gentle natural tonal variation throughout the transparent crystal matrix. Ca

2026

24.18ct Natural Brazilian Morganite Oval Faceted Loose Gemstone, 24BY

ThousandPlanetSathorn, Bangkok

72ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 26YQ: 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

72ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 26YQ

Lazo HeritageSathorn, Bangkok

25.14ct Natural Tanzanian Tanzanite Oval Cabochon Loose Gemstone, 71BZ: This smoothly polished oval cabochon is natural tanzanite sourced exclusively from Tanzania, the only known origin for this rare gemstone. It features rich, saturated violet-blue colour across the tra

2026

25.14ct Natural Tanzanian Tanzanite Oval Cabochon Loose Gemstone, 71BZ

ThousandPlanetSathorn, Bangkok

42.95ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 42YP: 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

42.95ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 42YP

Lazo HeritageSathorn, Bangkok

51.80ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 83YL: 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

51.80ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 83YL

Lazo HeritageSathorn, Bangkok

41.98ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 12YL: 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

41.98ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 12YL

Lazo HeritageSathorn, Bangkok

16.83 Carats Natural Green Banded Druzy Agate Freeform Cabochon, 24XZ: Let me share with you this really nice little druzy agate cabochon, it's such a charming one-of-a-kind stone with a glittering crystal pocket front and center! Soft minty green banding wraps smoothly

2026

16.83 Carats Natural Green Banded Druzy Agate Freeform Cabochon, 24XZ

Lazo HeritageSathorn, Bangkok

98.52ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 10YL: 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

98.52ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 10YL

Lazo HeritageSathorn, Bangkok

1.43 Carats Natural Ethiopian Welo Orange Fire Opal Oval Faceted Loose Gemstone, 88XX: This opal material is mined from the Welo deposits of Ethiopia and processed with professional faceted lapidary work with uniform polished facets across the gem surface. Natural subtle internal textur

2026

1.43 Carats Natural Ethiopian Welo Orange Fire Opal Oval Faceted Loose Gemstone, 88XX

Lazo HeritageSathorn, Bangkok

18.15 Carats Natural Blue Pietersite Loose Cabochon Gemstone, 18ZQ: This genuine natural pietersite features swirling layered blue fibrous mineral formations formed through natural geological silicate deposition. Fine natural oxide flecks and subtle mineral veining ru

2026

18.15 Carats Natural Blue Pietersite Loose Cabochon Gemstone, 18ZQ

Lazo HeritageSathorn, Bangkok

165.62 Carats Natural Royal Blue Sodalite Rough Stone, 87YR: This genuine natural sodalite rough exhibits soft blended royal blue mineral coloration mixed with pale crystalline matrix formed through natural igneous geological formation. Fine light mineral speck

2026

165.62 Carats Natural Royal Blue Sodalite Rough Stone, 87YR

Lazo HeritageSathorn, Bangkok

1.44 Carats Natural Green Rutilated Peridot Cushion Cut Loose Gemstone, 75WS: This soft cushion faceted peridot boasts a fresh translucent lime-green base densely threaded with delicate crisscross black rutile needle inclusions, dotted with tiny natural mineral micro specks acr

2026

1.44 Carats Natural Green Rutilated Peridot Cushion Cut Loose Gemstone, 75WS

Lazo HeritageSathorn, 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

3 days Left

Eimco Mucker Butte Montana Mine Mining Cart

Butte Special Beer Montana Lighted Sign

1888 Granite Montana Miners Union Ribbon

The Richest Hill on Earth - Day 1

Davis Brothers Auction

Starts on:

Missoula, MT, US

3 days Left

Abstract Woman with Golden Bird Bronze Sculpture on Marble Base Original 7''

Ballerina Bronze Sculpture in Yellow Tutu on Marble Base - 13'' x 7''

Seated Buddha Meditation Bronze Sculpture on Lotus Base - 8'' x 4.5''

1200+ Premium Showcase of Fine Collectibles

Weatherham Estate Treasures

Starts on:

Cobourg, ON, CA

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