Modern Fossils

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Natural Baby Blue Aquamarine 1.06 Ct. Oval Shape 7 x 6.1 Mm Gemstone From Brazil: Product ID: 800812160 Product Name: Natural Gemstones Weight: 1.06 CT. Size: 7 x 6.1 x 3.6 MM. Shape: Oval Shape Color: Baby Blue Clarity:VSI Luster: Good Gems Origin: Brazil Treatment: Unheated Cryst

2026

Natural Baby Blue Aquamarine 1.06 Ct. Oval Shape 7 x 6.1 Mm Gemstone From Brazil

Treasure of Gems & JewelryLake Charles, LA

5.93 Carats Midnight Mist Star Sapphire Oval Cabochon - Natural Loose Gemstone, 21XC: This striking oval cabochon star sapphire features a moody, multi-tonal midnight blue hue, with soft misty grey and subtle green undertones creating a nebula-like visual depth. A bright, six-rayed sta

2026

5.93 Carats Midnight Mist Star Sapphire Oval Cabochon - Natural Loose Gemstone, 21XC

Lazo HeritageSathorn, Bangkok

6.47 Carats Watermelon Bi-Color Tourmaline Half-Moon Fancy - Natural Nigerian Stone, 34XP: This striking half-moon fancy-cut tourmaline showcases a vivid watermelon bi-color pattern, with a deep raspberry-pink core framed by a crisp, pale olive-green border. Measuring precisely at 16.8 x 10

2026

6.47 Carats Watermelon Bi-Color Tourmaline Half-Moon Fancy - Natural Nigerian Stone, 34XP

Lazo HeritageSathorn, Bangkok

STONE PENDANT ROCK STONE LAPIDARY SPECIMEN: STONE PENDANT ROCK STONE LAPIDARY SPECIMEN

2026

STONE PENDANT ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman AuctioneersThayer, MO

STONE PENDANT ROCK STONE LAPIDARY SPECIMEN: STONE PENDANT ROCK STONE LAPIDARY SPECIMEN

2026

STONE PENDANT ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman AuctioneersThayer, MO

7.10 Carat Pink Sapphire Trillion Cut EGL Certified: Characterized by its triangular shape and brilliant, faceted cut. These stones are often sourced from Sri Lanka (Ceylon) and are frequently described as having a light to medium pink hue, often with e

2026

7.10 Carat Pink Sapphire Trillion Cut EGL Certified

California GemstonesSan Diego, CA

12.10 Carat Teal Tourmaline Trillion Cut EGL Certified: featuring a vibrant, bluish-green color reminiscent of Paraiba tourmaline. Sourced from regions like Brazil or Africa. A stone of this size and cut is highly sought after for collector-grade pieces or

2026

12.10 Carat Teal Tourmaline Trillion Cut EGL Certified

California GemstonesSan Diego, CA

11 Carat PAIR Emerald Emerald Cut EGL Certified: Rectangular, step-cut facets, offering a dramatic "hall-of-mirrors" effect rather than intense sparkle. These stones typically display a long, linear, and geometric appearance with truncated corners.

2026

11 Carat PAIR Emerald Emerald Cut EGL Certified

California GemstonesSan Diego, CA

28mm Burmese Amber Pear Cut "Biting Midge": Prehistoric biting midges (Ceratopogonidae) found in ~99-million-year-old Cretaceous Burmese amber (burmite) are exceptionally preserved, revealing ancient blood-feeding behaviors. These inclusions, o

2026

28mm Burmese Amber Pear Cut "Biting Midge"

California GemstonesSan Diego, CA

10.30 Carat Madagascar Grandidierite Oval Cut GGL Certified: displaying a rich bluish-green to teal color in an oval cut. Renowned for its extreme rarity, it is a Magnesium Aluminum Borosilicate with a high hardness (7.5 on the Mohs scale), making it durable fo

2026

10.30 Carat Madagascar Grandidierite Oval Cut GGL Certified

California GemstonesSan Diego, CA

7.85 Carat Ceylon Pink Sapphire Brilliant Emerald Step Cut GGI Certified: exceptional, high-carat gemstone, likely originating from Ceylon, a region renowned for producing high-quality pink sapphires with excellent clarity and intense, vivid color saturation. The emerald st

2026

7.85 Carat Ceylon Pink Sapphire Brilliant Emerald Step Cut GGI Certified

California GemstonesSan Diego, CA

11.40 Carat Ceylon Pink Sapphire Oval Cut EGL Certified: A high-clarity, naturally sourced gemstone from Sri Lanka (Ceylon), often characterized by a vibrant pink to hot pink hue and excellent transparency. It is typically a large, eye-clean stone, often fe

2026

11.40 Carat Ceylon Pink Sapphire Oval Cut EGL Certified

California GemstonesSan Diego, CA

Burmese Amber Cricket: Prehistoric cricket specimens preserved within fossilized tree resin (amber), typically found in Myanmar or Baltic regions. These fossils are often ~100 million years old, dating back to the Cretaceou

2026

Burmese Amber Cricket

California GemstonesSan Diego, CA

6.3 Carat Brazilian Royal Aquamarine Emerald Step Cut EGL Certified: Originating from Minas Gerais. Tremendous clarity despite "rain inclusions". Fancy-cut faceting designed to maximize brilliance. The term "Royal Aquamarine" is often associated with the significant, r

2026

6.3 Carat Brazilian Royal Aquamarine Emerald Step Cut EGL Certified

California GemstonesSan Diego, CA

6.55 Carat Blood Red Ruby Brilliant Round Cut EGL Certified: High-value gemstone. Rubies over 5 carats in fine quality are considered "exceptional" and are significantly rarer than diamonds of a similar size. The "blood red" or "pigeon blood" designation refers

2026

6.55 Carat Blood Red Ruby Brilliant Round Cut EGL Certified

California GemstonesSan Diego, CA

9.76 Carat Cambodian Pink Sapphire Oval Cut GGL Certified: Intense pink to vivid pink is highly desired. The color is the most important factor in determining value, with more saturated, hot-pink tones being the most valuable. While some inclusions are common

2026

9.76 Carat Cambodian Pink Sapphire Oval Cut GGL Certified

California GemstonesSan Diego, CA

19 Carat Chanthaburi Thailand Ruby Emerald Step Cut EGL Certified: Chanthaburi is known for producing darker rubies. Most Thai rubies are typically smaller, so a 19-carat specimen of gem quality is considered a major collector's piece. Chanthaburi is the historic hea

2026

19 Carat Chanthaburi Thailand Ruby Emerald Step Cut EGL Certified

California GemstonesSan Diego, CA

6.55 Carat Blood Red Ruby Brilliant Round Cut EGL Certified: High-value gemstone. Rubies over 5 carats in fine quality are considered "exceptional" and are significantly rarer than diamonds of a similar size. The "blood red" or "pigeon blood" designation refers

2026

6.55 Carat Blood Red Ruby Brilliant Round Cut EGL Certified

California GemstonesSan Diego, CA

10.40 Carat Teal Tourmaline Trillion Cut GGL Certified: A 10.40-carat teal tourmaline in a trillion cut is a substantial and striking gemstone. The trillion cut is a triangular shape that maximizes brilliance, making it a bold, modern choice. Teal tourmali

2026

10.40 Carat Teal Tourmaline Trillion Cut GGL Certified

California GemstonesSan Diego, CA

2.31Ct Zambian Emerald - Polished Faceted , 203E: ThousandPlanet Auction Subject: Natural Zambian Emerald Origin: Zambia Carat Weight: 2.31Ct Dimension: 9.8x6.8x5 mm Treatment: Oiled Type: Faceted, Polished

2026

2.31Ct Zambian Emerald - Polished Faceted , 203E

ThousandPlanetHunghom, Kowloon, HK

*1.89cts Natural Million Year Old Baltic Insect Amber, 10x9mm , 11C: ThousandPlanet AuctionSubject: Natural Amber Origin: Lithuania Treatment: None

2026

*1.89cts Natural Million Year Old Baltic Insect Amber, 10x9mm , 11C

ThousandPlanetHunghom, Kowloon, HK

*76cts Dark Phantom Ethiopian Crystal Specimen Rough , 1022E: ThousandPlanet Auction Subject: Natural Ethiopian Crystal Rough Origin: Ethiopia Carat Weight: 76 cts Dimension: 37x24x19 mm Treatment: Unheated Type: Rough Specimen

2026

*76cts Dark Phantom Ethiopian Crystal Specimen Rough , 1022E

ThousandPlanetHunghom, Kowloon, HK

5.00cts 6 Rays Black Star Sapphire , 854E: ThousandPlanet Auction Subject: Natural 6 Rays Star Sapphire Origin: Myanmar Carat Weight: 5.00cts Dimension: 10.7x9.4x4 mm Treatment: Diffusion Type: Cabochon, Polished

2026

5.00cts 6 Rays Black Star Sapphire , 854E

ThousandPlanetHunghom, Kowloon, HK

TRILOBITE FOSSIL ROCK STONE LAPIDARY SPECIMEN: TRILOBITE FOSSIL ROCK STONE LAPIDARY SPECIMEN

2026

TRILOBITE FOSSIL ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman AuctioneersThayer, MO

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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

2 days Left

Exhibited Maya Palenque Rubbing - Temple of the Cross

Caddo Blackware Bipod Bottle with Engraved Arched Form

Peter Max Pop Art Poster - "Love" (1969)

Pre-Columbian | Antiquities | Fine Arts

Artemis Fine Arts

Starts on:

Louisville, CO, US

7 days Left

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