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Calcite Stalactite Formation: Rare, beautiful and unique calcite stalactite formation. 10" x 8" x 3.5". 4 pounds, 13 ounces.

4 days Left

Calcite Stalactite Formation

Fossils & Gemstones of Houston

Est. US$400-US$600

Aquamarine in Feldspar on Stand: Aquamarine in feldspar on black metal stand. 9.25” x 4” x 3”. 2 pounds, 12 ounces.

4 days Left

Aquamarine in Feldspar on Stand

Fossils & Gemstones of Houston

Est. US$200-US$300

Plated Rhodium 4.65ctw Chrome Diopside Pendant: This rhodium?plated .925 sterling silver cluster pendant features a vivid arrangement of natural chrome diopside gemstones, showcasing twenty?three oval 4×3?mm stones totaling 4.37 carats and seven r

6 days Left

Plated Rhodium 4.65ctw Chrome Diopside Pendant

1 Great Deal Auctions

Est. US$500-US$600

Natural Swiss Blue Topaz 1.66 Ct. Pear Shape 9.4 x 6.6 Mm Gemstone From Brazil: Product ID: 807149561 Product Name: Natural Blue Topaz Weight: 1.66 CT. Size: 9.4 x 6.6 x 4 MM. Shape: Pear Color: Swiss Blue Clarity:SI Luster: Good Gems Origin: Brazil Treatment: Treated Crystal Str

Mar 01, 2026

Natural Swiss Blue Topaz 1.66 Ct. Pear Shape 9.4 x 6.6 Mm Gemstone From Brazil

Treasure of Gems & Jewelry

Est. US$21-US$34

Natural Multi Color Opal 0.96 Ct. Oval Cabochon Shape 8.1 x 6.1 Mm Gemstone From Ethiopia: Product ID: 818725556 Product Name: Natural Opal Weight: 0.96 CT. Size: 8.1 x 6.1 x 4 MM. Shape: Oval Cabochon Color: Multi Color Clarity:Semi - Transparent Luster: Iridescent Gems Origin: Ethiopia Tr

Mar 01, 2026

Natural Multi Color Opal 0.96 Ct. Oval Cabochon Shape 8.1 x 6.1 Mm Gemstone From Ethiopia

Treasure of Gems & Jewelry

Est. US$45-US$71

Natural Purplish Red Ruby 2.94 Ct. Oval Shape 10.1 x 8.2 Mm Gemstone from Madagascar: Product ID: 805935908 Product Name: Natural Ruby Weight: 2.94 CT. Size: 10.1 x 8.2 x 4 MM. Shape: Oval Shape Color: Purplish Red Clarity:SI1 Luster: Good Gems Origin: Madagascar Treatment: Heated (Lea

Mar 01, 2026

Natural Purplish Red Ruby 2.94 Ct. Oval Shape 10.1 x 8.2 Mm Gemstone from Madagascar

Treasure of Gems & Jewelry

Est. US$69-US$109

Natural Purplish Red Ruby 2.37 Ct. Oval Shape 9.2 x 7.3 Mm Gemstone From Madagascar: Product ID: 805935631 Product Name: Natural Ruby Weight: 2.37 CT. Size: 9.2 x 7.3 x 4 MM. Shape: Oval Color: Purplish Red Clarity:VSI - SI1 Luster: Good Gems Origin: Madagascar Treatment: Heated (Lead

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Natural Purplish Red Ruby 2.37 Ct. Oval Shape 9.2 x 7.3 Mm Gemstone From Madagascar

Treasure of Gems & Jewelry

Natural Green Tourmaline 1.11 Ct. Octagon Shape 6.1 x 5.3 Mm Gemstone From Nigeria: Product ID: 807242183 Product Name: Natural Tourmaline Weight: 1.11 CT. Size: 6.1 x 5.3 x 4 MM. Shape: Octagon Color: Green Clarity:VSI Luster: Good Gems Origin: Nigeria Treatment: Unheated Crystal St

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Natural Green Tourmaline 1.11 Ct. Octagon Shape 6.1 x 5.3 Mm Gemstone From Nigeria

Treasure of Gems & Jewelry

Natural Orangish Red Spessartine Garnet 1.21 Ct. Oval Shape 6.3 x 5.5 Mm Gemstones From Namibia: Product ID: 802937290 Product Name: Natural Garnet Weight: 1.21 CT. Size: 6.3 x 5.5 x 4 MM. Shape: Oval Shape Color: Orangish Red Clarity:SI1 Luster: Good Gems Origin: Namibia Treatment: Unheated Crys

Mar 15, 2026

Natural Orangish Red Spessartine Garnet 1.21 Ct. Oval Shape 6.3 x 5.5 Mm Gemstones From Namibia

Treasure of Gems & Jewelry

Est. US$108-US$170

Natural Green Tourmaline 1.25 Ct. Octagon Shape 6 x 6 Mm. Unheated Gemstone From Nigeria: Product ID: 807242461 Product Name: Natural Tourmaline Weight: 1.25 CT. Size: 6 x 6 x 4 MM. Shape: Octagon Color: Green Clarity:VSI Luster: Good Gems Origin: Nigeria Treatment: Unheated Crystal Struct

Mar 08, 2026

Natural Green Tourmaline 1.25 Ct. Octagon Shape 6 x 6 Mm. Unheated Gemstone From Nigeria

Treasure of Gems & Jewelry

Est. US$67-US$106

Natural Green Tourmaline 1.07 Ct. Octagon Shape 6 x 5 Mm. Unheated Gemstone From Nigeria: Product ID: 807242210 Product Name: Natural Tourmaline Weight: 1.07 CT. Size: 6 x 5 x 4 MM. Shape: Octagon Color: Green Clarity:VSI Luster: Good Gems Origin: Nigeria Treatment: Unheated Crystal Struct

Mar 01, 2026

Natural Green Tourmaline 1.07 Ct. Octagon Shape 6 x 5 Mm. Unheated Gemstone From Nigeria

Treasure of Gems & Jewelry

Est. US$42-US$66

Plated Rhodium 4.65ctw Chrome Diopside Pendant: This rhodium?plated .925 sterling silver cluster pendant features a vivid arrangement of natural chrome diopside gemstones, showcasing twenty?three oval 4×3?mm stones totaling 4.37 carats and seven r

Feb 26, 2026

Plated Rhodium 4.65ctw Chrome Diopside Pendant

1 Great Deal Auctions

Est. US$500-US$600

Natural London Blue Topaz 2.01 Ct. VVS Oval Shape 9 x 7 Mm. Gemstone From Brazil: Product ID: 807160968 Product Name: Natural Blue Topaz Weight: 2.01 CT. Size: 9 x 7 x 4 MM. Shape: Oval Color: London Blue Clarity:VVS Luster: Good Gems Origin: Brazil Treatment: Treated Crystal Struc

Mar 15, 2026

Natural London Blue Topaz 2.01 Ct. VVS Oval Shape 9 x 7 Mm. Gemstone From Brazil

Treasure of Gems & Jewelry

Est. US$61-US$96

Natural Yellowish Green Cats Eye Apatite 2.21 Ct. Oval Cabochon Shape 9.4 x 6.5 Mm Gemstone From: Product ID: 800613810 Product Name: Natural Apatite Weight: 2.21 CT. Size: 9.4 x 6.5 x 4 MM. Shape: Oval Cabochon Color: Yellowish Green Clarity:Semi - Transparent Luster: Good Gems Origin: Tanzania T

Mar 08, 2026

Natural Yellowish Green Cats Eye Apatite 2.21 Ct. Oval Cabochon Shape 9.4 x 6.5 Mm Gemstone From

Treasure of Gems & Jewelry

Est. US$69-US$109

A group of jewellery,: A group of jewellery, comprising a sapphire and diamond pendant, stamped 15ct, tested as approximately 15ct gold, a small pendant/pencil, tested as approximately 14ct gold, a pair of 9ct gold varicolo

6 days Left

A group of jewellery,

Sworders Fine Art Auctioneers

Est. £200-£300

Large Mahogany Obsidian Freeform: Large polished mahogany obsidian freeform from Mexico. 10.5” x 5” x 4”. 8 pounds, 2 ounces.

4 days Left

Large Mahogany Obsidian Freeform

Fossils & Gemstones of Houston

Est. US$400-US$500

Natural Multi Color Opal 0.95 Ct. Oval Cabochon Shape 8.2 x 6.7 Mm Gemstones From Ethiopia: Product ID: 818728434 Product Name: Natural Opal Weight: 0.95 CT. Size: 8.2 x 6.7 x 4 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatmen

Mar 08, 2026

Natural Multi Color Opal 0.95 Ct. Oval Cabochon Shape 8.2 x 6.7 Mm Gemstones From Ethiopia

Treasure of Gems & Jewelry

Est. US$104-US$164

Polished Malachite and Chrysocolla Specimen: Beautiful polished malachite and chrysocolla specimen from the DR Congo. 4.75” x 4” x 1.5”. 1 pound, 14 ounces.

4 days Left

Polished Malachite and Chrysocolla Specimen

Fossils & Gemstones of Houston

Est. US$250-US$300

Natural Black Star Sapphire 2.71 Ct. Oval Cabochon Shape 8.6 x 6.7 Mm. Gemstone From Thailand: Product ID: 806139559 Product Name: Natural Star Sapphire Weight: 2.71 CT. Size: 8.6 x 6.7 x 4 MM. Shape: Oval Cabochon Color: Black Clarity:Opaque Luster: Good 6 Rays Star Gems Origin: Thailand Treat

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Natural Black Star Sapphire 2.71 Ct. Oval Cabochon Shape 8.6 x 6.7 Mm. Gemstone From Thailand

Treasure of Gems & Jewelry

Natural Green Demantoid Garnet 0.97 Ct. Round Shape 5.4 Mm. Gemstone from Madagascar: Product ID: 802919211 Product Name: Natural Demantoid Weight: 0.97 CT. Size: 5.4 x 5.4 x 4 MM. Shape: Round Color: Green Clarity:SI1 Luster: Good Gems Origin: Madagascar Treatment: Unheated Crystal St

Mar 08, 2026

Natural Green Demantoid Garnet 0.97 Ct. Round Shape 5.4 Mm. Gemstone from Madagascar

Treasure of Gems & Jewelry

Est. US$49-US$77

Natural White Topaz 9.18 Ct. 5 Pcs Mixed Shape Gemstone From Brazil: Product ID: 807168822 Product Name: Natural Topaz Weight: 9.18 CT. Size: 9 x 7 x 4 to 6.4 x 6.4 x 3.5 MM. Shape: Mixed Shape Color: White Clarity:SI1 Luster: Good Gems Origin: Brazil Treatment: Unheat

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Natural White Topaz 9.18 Ct. 5 Pcs Mixed Shape Gemstone From Brazil

Treasure of Gems & Jewelry

Natural Pinkish Red Ruby 1.34 Ct. Oval Shape 6.7 x 5.3 Mm Gemstone from Madagascar: Product ID: 805935983 Product Name: Natural Ruby Weight: 1.34 CT. Size: 6.7 x 5.3 x 4 MM. Shape: Oval Shape Color: Pinkish Red Clarity:SI1 Luster: Good Gems Origin: Madagascar Treatment: Heated (Lead-

Mar 08, 2026

Natural Pinkish Red Ruby 1.34 Ct. Oval Shape 6.7 x 5.3 Mm Gemstone from Madagascar

Treasure of Gems & Jewelry

Est. US$69-US$109

Large Mahogany Obsidian Freeform: Large polished mahogany obsidian freeform from Mexico. 9.5” x 4.5” x 4”. 8 pounds, 2 ounces..

4 days Left

Large Mahogany Obsidian Freeform

Fossils & Gemstones of Houston

Est. US$400-US$500

Natural Deep Green Tourmaline 1.48 Ct. Octagon Shape 7 x 5.9 Mm Gemstone From Nigeria: Product ID: 807245576 Product Name: Natural Tourmaline Weight: 1.48 CT. Size: 7 x 5.9 x 4 MM. Shape: Octagon Color: Deep Green Clarity:VSI Luster: Good Gems Origin: Nigeria Treatment: Unheated Crystal

Mar 15, 2026

Natural Deep Green Tourmaline 1.48 Ct. Octagon Shape 7 x 5.9 Mm Gemstone From Nigeria

Treasure of Gems & Jewelry

Est. US$45-US$70

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