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Incredible Acropora Table Coral Display Specimen: Incredible Acropora Table Coral Display Specimen. Classic nodule structure, with few areas of damage. Size: 16 x 13 x 4 3/4 in. Acropora is a genus of small polyp stony coral in the phylum

Apr 19, 2026

Incredible Acropora Table Coral Display Specimen

Sarasota Estate Auction

A MASSIVE POLISHED LABRADORITE SPECIMEN.: Here is a magnificent LABRADORITE specimen just about 13" X 11" X 14"

Apr 21, 2026

A MASSIVE POLISHED LABRADORITE SPECIMEN.

J. Greenstein & Co., Inc.

Velvety Malachite Formation: Velvety malachite formation from the DR Congo. 6.5" x 4.25" x 2.5". 2 pounds, 1 ounces.

Apr 26, 2026

Velvety Malachite Formation

Fossils & Gemstones of Houston

A POLISHED LAPIS LAZULI FORMATION.: Exceptional color and grade. 12.2” long x 2.5” tall x 2” thick.

Apr 21, 2026

A POLISHED LAPIS LAZULI FORMATION.

J. Greenstein & Co., Inc.

AMETHYST CATHEDRAL GEODE WITH POLISHED EDGES: 25.5" tall and 9" at it's widest. 28.05 kilogrames

Apr 21, 2026

AMETHYST CATHEDRAL GEODE WITH POLISHED EDGES

J. Greenstein & Co., Inc.

AMETHYST CATHEDRAL GEODE WITH POLISHED EDGES: 27" tall and 7.5" at it's widest. 32.45 kilogrames

Apr 21, 2026

AMETHYST CATHEDRAL GEODE WITH POLISHED EDGES

J. Greenstein & Co., Inc.

HIGHLY POLISHED AMETHYST GEODE. HUGE AND MAGNIFICENT: 37.3 kilo and 21" tall, Excellent purple color.

Apr 21, 2026

HIGHLY POLISHED AMETHYST GEODE. HUGE AND MAGNIFICENT

J. Greenstein & Co., Inc.

LARGE PURPLE ART GLASS CONSOLE LOW BOWL: LARGE PURPLE ART GLASS CONSOLE LOW BOWL: Large Amethyst Art Glass Charger, having a colorful center with Dichroic & Gold flake accents. When displayed in a window, the light gives the purple rim a cos

Apr 19, 2026

LARGE PURPLE ART GLASS CONSOLE LOW BOWL

Burchard Galleries Inc

7.22 Cts GIA Aquamarine: Flawless 7.22ct GIA-certified aquamarine in sea-blue hue with superior transparency.

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7.22 Cts GIA Aquamarine

Nile Jewels Co Ltd

A MAGNIFICENT CITRINE CLUSTER ON A STAND: This cluster includes large and small crystals. The stone itself is 20" tall and 32" on the stand.

Apr 21, 2026

A MAGNIFICENT CITRINE CLUSTER ON A STAND

J. Greenstein & Co., Inc.

Perfectly crafted high-quality ice crystal carving [Peaceful Matter Plaque]: This perfectly crafted, high-quality ice-type jadeite pendant is exquisitely carved. The base is pure, rich, clean, and translucent with a strong fluorescent effect and excellent rigidity. It is icy a

18 hrs Left

Perfectly crafted high-quality ice crystal carving [Peaceful Matter Plaque]

A MASSIVE CITRINE CATHEDRAL 62" TALL: 63" Tall with solid colorful crystals and nice formation.

Apr 21, 2026

A MASSIVE CITRINE CATHEDRAL 62" TALL

J. Greenstein & Co., Inc.

41.11 ct Tanzanite Shape: Rectangular cushion M: 41.11 ct Tanzanite Shape: Rectangular cushion Measurement: 22.85 x 16.70 x 13.30 mm HID03101062020 © 2026 Heritage Auctions | All Rights Reserved www&

May 04, 2026

41.11 ct Tanzanite Shape: Rectangular cushion M

Heritage Auctions

Large Museum-Grade Vivianite Crystal Formation: Large, ultra-rare, museum grade translucent green vivianite crystal cluster formation. This is the best vivianite specimen we have ever carried. 8.25" x 9" x 6.75". 12 pounds, 13 ounces.

Apr 26, 2026

Large Museum-Grade Vivianite Crystal Formation

Fossils & Gemstones of Houston

14.73 Cts GIA Paraiba: Exceptional GIA-certified Paraiba Tourmaline with strong presence and vibrant color; 14.73 cts, measurement 19 × 12 × 7 mm.

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14.73 Cts GIA Paraiba

Nile Jewels Co Ltd

2.07 ct Brazilian Alexandrite Shape: Round Meas: 2.07 ct Brazilian Alexandrite Shape: Round Measurements: 8.17 x 8.29 x 4.23 mm Color: Greenish blue changing to reddish purple Origin: Brazil Report

May 04, 2026

2.07 ct Brazilian Alexandrite Shape: Round Meas

Heritage Auctions

Big Polished BLUE LAPIS LAZULI Mineral Sphere, Weight: 5 lbs: Big Formed and Polished BLUE LAPIS LAZULI Mineral Sphere. It measures 4.5" in Diameter and the Total Weight is 5 lbs 4 oz. Lapis Lazuli is a deep blue metamorphic rock used as a semi-precious sto

Big Polished BLUE LAPIS LAZULI Mineral Sphere, Weight: 5 lbs

Western Sportsman LLC

(10 bids)

Polished GREEN BANDED ONYX Mineral Sphere, Weight: 1 lb: Formed and Polished GREEN BANDED ONYX Mineral Sphere. It measures 3" in Diameter and the Total Weight is 1 lb 7 oz. Green Banded Onyx is a stunning, translucent, and layered ornamental stone know for

Polished GREEN BANDED ONYX Mineral Sphere, Weight: 1 lb

Western Sportsman LLC

(7 bids)

(4) Polished GREEN BANDED ONYX Mineral Spheres, Weight: 1 lb: 4 Formed and Polished GREEN BANDED ONYX Mineral Spheres. They all measure approximately 2" in Diameter and the Total Weight is 1 lb 8 oz. Green Banded Onyx is a sedimentary stone composed of banded ca

(4) Polished GREEN BANDED ONYX Mineral Spheres, Weight: 1 lb

Western Sportsman LLC

(5 bids)

Big Polished BLUE LAPIS LAZULI Mineral Sphere, Weight: 4 lbs: Big Formed and Polished BLUE LAPIS LAZULI Mineral Sphere. It measures 4 3/8" in Diameter and the Total Weight is 4 lbs 12 oz. Lapis Lazuli is a deep blue metamorphic rock used as a semi-precious stone

Big Polished BLUE LAPIS LAZULI Mineral Sphere, Weight: 4 lbs

Western Sportsman LLC

(4 bids)

10.42 Ct "Beautiful"Aqua Terra Costa Doublet Quartz Set: Gemstones: Natural Quartz /Carat Weights: 10.42 ct /Size or Dimensions: 13 X 6 mm Approx /Treatment: Doublet QuartzThis beautiful gemstone is crafted from two layers of natural quartz, forming a stunn

5 hrs Left

10.42 Ct "Beautiful"Aqua Terra Costa Doublet Quartz Set

Finest Gems Auction

(3 bids)

57.55 Ct "Stunning" Purple Fire Labradorite: Gemstones: Natural Labradorite /Carat Weights: 57.55 ct /Size or Dimensions: 39 X 24 X 7 mm /Treatment: Color Dyed

5 hrs Left

57.55 Ct "Stunning" Purple Fire Labradorite

Finest Gems Auction

(3 bids)

29.54 Ct Natural Blue Flash Labradorite: Gemstones: Natural LabradoriteCarat Weights: 29.54 ct Size/Dimensions: 30.20 X 16.50 X 6.50 mm ApproxTreatment: No

5 hrs Left

29.54 Ct Natural Blue Flash Labradorite

Finest Gems Auction

(3 bids)

14.43 Ct Natural Green Flash Labradorite: Gemstones: Natural LabradoriteCarat Weights: 14.43 ct Size/Dimensions: 16.50 X 16.50 mm ApproxTreatment: No

5 hrs Left

14.43 Ct Natural Green Flash Labradorite

Finest Gems Auction

(3 bids)

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