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4.67 Carat Red Tourmaline and Trillion Diamond Three Stone Platinum Ring – Assay Jewelers
15.53 Carat Vintage Mexican Opal Diamond 18K Gold Split Shank Ring – Assay Jewelers
Platinum 3.19 Carat Indicolite Tourmaline & Diamond Vintage Filigree Ring Size 6 – Assay Jewelers
14K Kunzite and Aquamarine Vintage Charm Bangle Bracelet – Assay Jewelers
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GIA Certified 5.38 Carat Black Opal and Diamond Ballerina Vintage Platinum Ring – Assay Jewelers
Certified
2.78 Carat Black Opal and Diamond Halo Platinum Filigree Ring – Assay Jewelers
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Vintage 11.36 Carat Opal and Briolette/Rose Cut Diamond Halo 18K Gold Ring – Assay Jewelers
GIA Certified 11.22 Carat Green Tourmaline and Diamond Platinum Filigree Ring – Assay Jewelers
Certified
6.88 Carat Peridot Pendant Necklace in 14K Yellow Gold Rope Chain – Assay Jewelers
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4.09 Carat Peridot Pendant Necklace in 18K White Gold Cable Chain – Assay Jewelers
GIA Certified 8.17 Carat Tourmaline and Diamond Halo Square Shape Platinum Ring – Assay Jewelers
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GIA Certified 6.47 Carat Green Tourmaline East-West Half Bezel 18K Ring – Assay Jewelers
Certified
7.8 CTTW Green Tsavorite, Pink Sapphire and Diamond Leafy Vine Brooch – Assay Jewelers
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9.31 CTTW Mixed Color Sapphire, Amethyst, Garnet, Diamond Cluster Ring – Assay Jewelers
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7.86 Carat Natural White Opal and Diamond Halo Platinum Ring – Assay Jewelers
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GIA Certified 7.60 Carat No Heat Pink Spinel and Diamond Ring in Platinum – Assay Jewelers
Certified
Vintage 25 Carat Peridot Ring & Earring 18K Yellow Gold Jewelry Set – Assay Jewelers
6.04 Carat Cushion Cut No Heat Burma Origin Spinel in Vintage 14K Gold Ring – Assay Jewelers
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Art Deco GIA Cert. 4.35 Carat No Heat Spinel Vintage Platinum Ring – Assay Jewelers
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21.13 Carat Pink Tourmaline & Diamond Floating Pendant Necklace in 14K/18K Gold – Assay Jewelers
Vintage 26 CTTW Aquamarine, Kunzite & Diamond Detachable Mix/Match Earrings – Assay Jewelers
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Vintage Briolette Cut Green Tourmaline & Diamond Dangling Stud Earrings in 18K – Assay Jewelers
GIA Certified Brazilian Alexandrite 0.90 Carat Pear Cut Green-Purple in 18K Ring – Assay Jewelers
Certified
5 Carat Round Cut Green Tourmaline and Diamond Dangle Drop Earrings – Assay Jewelers
Natural 4.64 Carat Opal Pin with Multi Color Sapphire Detailing in Gold & Silver – Assay Jewelers
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Vintage GIA Certified Orange Spessartine Garnet & Diamond 18K White Gold Ring – Assay Jewelers
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Antique Red Spinel and Old Mine Diamond 14K Yellow Gold Three-Stone Ring – Assay Jewelers
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GIA Certified 8 Carat White Opal With Orange Garnet & Aquamarine Halo Ring – Assay Jewelers
Certified
Multi-Strand Blue Tanzanite Beads & Round Cut Diamond Necklace in 18K White Gold – Assay Jewelers
Vintage GIA Certified 120 Carat Pear-Shape Pink Rubellite Tourmaline Necklace in 22k Yellow Gold – Assay Jewelers
Certified
Natural 7.64 Carat Paraiba Tourmaline & Marquise Diamond Pendant Necklace in 18K White Gold – Assay Jewelers
12.68 Carat Zoisite Green Tanzanite & Diamond Ring in Platinum 950 | IGI Certified – Assay Jewelers
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GIA Certified Vintage 62 Carat Aquamarine with Diamond Platinum Brooch/Pin – Assay Jewelers
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100 Carat Oval Cut Pink Kunzite with Aquamarine & Diamond Pendant in 18K White Gold – Assay Jewelers
Vintage 16 Carat Pink Checkerboard Oval-Cut Tourmaline and Diamond Earring – Assay Jewelers
Vintage Oscar Friedman Signed 1.50 Carat Pear-Shaped Opal and Diamond 14K Rose Gold Ring – Assay Jewelers
GIA Certified 11 Carat Bluish Green Pear-Cut Tourmaline & Baguette Diamond Ring – Assay Jewelers
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GIA Certified 5.25 Carat Oval Cut Blue Zircon & Diamond Bypass Ring Signed Richard Krementz – Assay Jewelers
Certified
10 Carat Heart-Shape Colombian Emerald, Aquamarine, and Diamond 18K Necklace – Assay Jewelers
5.03 Carat Oval Cut Peridot Pendant with Round Cut Diamond Halo in 18K White Gold – Assay Jewelers
1.16 Carat Oval-Cut Aquamarine and Diamond Shank 14K White Gold Ring – Assay Jewelers
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Vintage Pear Cut Green Peridot Drop Pendant Necklace with Diamonds in 18K Yellow Gold – Assay Jewelers
Natural Diamond and Green Tsavorite Butterfly 14K Yellow Gold Necklace – Assay Jewelers
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14k Solid Yellow Gold Tsavorite Butterfly Charm Floating Pendant Necklace – Assay Jewelers
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GIA Certified Hexagon Cut Pink Tourmaline with Diamond Halo Star Shape Ring in 18K White Gold – Assay Jewelers
Certified
GIA Certified Oval Cut Orange Spessartine Garnet And Diamond 18K Dome Ring – Assay Jewelers
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GIA Certified Blue-Green Rectangle Cut Tourmaline & Diamond Ring in 18K Carved Gold – Assay Jewelers
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GIA Certified 2.5 Carat Oval Cut Tsavorite and Diamond Overpass Crossover Ring | Signed Richard Krementz – Assay Jewelers
Semi-Precious Gemstones

Our semi-precious gemstone collection showcases nature's most captivating colored stones, featuring rare specimens that rival precious gems in beauty and investment potential. This curated selection includes Australian black opals with vivid play-of-color, GIA-certified pink kunzite, premium aquamarine, exceptional tanzanite, and fine tourmaline in sought-after colors. Each piece represents the pinnacle of semi-precious gemstone quality, with many stones displaying museum-grade characteristics including superior clarity, intense color saturation, and remarkable size that places them among the world's finest examples of their species.

 

Every gemstone has been carefully selected for exceptional quality and authenticated by certified gemologists, with many pieces featuring GIA certification and documented origins from premier mining locations. From Australian Lightning Ridge black opals to Tanzanian tanzanite and Brazilian tourmaline, our collection emphasizes provenance and natural beauty. Expert craftsmanship showcases each stone in custom settings of 18K gold and platinum, often enhanced with diamonds to create heirloom-quality pieces that highlight the unique optical properties and natural characteristics of each gemstone variety.

 

For discerning collectors and investors, high-quality semi-precious gemstones from premium localities have demonstrated strong appreciation potential, particularly rare varieties like fine tanzanite, exceptional opals, and large aquamarine specimens. The combination of increasing scarcity from traditional mining sources, growing global appreciation for colored stones, and the finite nature of top-quality material creates compelling investment opportunities. With proper certification and documentation of origin, these pieces offer both aesthetic pleasure and the potential for significant value appreciation over time.

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