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Black Sea, Inc.

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Providence, RI
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About Black Sea, Inc.

Browse our unique collection of bracelets, earrings, charms, necklaces, rings, watches and more! Based in Rhode Island, for over 20 years Black Sea has specialized in the process of buying and reselling high-quality precious metals, diamonds and gemstones. Our contemporary, vintage and antique jewelry collections feature a variety of unique and rare pieces, at an exceptional value. We strive ourselves to provide excellent customer service. Each item we purchase, is thoroughly inspected, evaluated and cared for. Serving as a hallmark of authenticity, many collectors like...Read More

Black Sea, Inc.

Established in 19991stDibs seller since 2024

Featured Pieces

Josef Hoffmann Weiner Werkstatte Austrian Jugendstil Brass Tray
By Josef Hoffmann
Located in Providence, RI
This Austrian Jugendstil brass tray, attributed to Josef Hoffmann for the Wiener Werkstätte, captures the refined elegance of early 20th-century design. Dating to around 1915, the tr...
Category

Vintage 1910s Austrian Platters and Trays

Materials

Brass

Vintage 18k Yellow Gold Sapphire & Diamond Cocktail Ring, Size 6.75 - 14.5g
Located in Providence, RI
This bold 18k yellow gold cocktail ring features a dramatic bypass design, set with clusters of vibrant blue sapphires and dazzling white diamonds. The twisted gold rope detailing gr...
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Vintage 14k Yellow Gold Sagittarius Cufflinks - 25.3g
Located in Providence, RI
These bold 14k yellow gold Sagittarius cufflinks are a striking tribute to the zodiac. Each round face features a sculptural centaur in mid-draw with bow and arrow, rendered in high ...
Category

20th Century Cufflinks

Materials

14k Gold, Yellow Gold

Vintage 14k Yellow Gold Oval Horse & Carriage Cufflinks - 26.6g
Located in Providence, RI
These 14k yellow gold cufflinks feature an engraved design of a horse-drawn sulky with driver, a motif associated with harness racing. The oval faces are polished and flat, with cont...
Category

20th Century Cufflinks

Materials

14k Gold, Yellow Gold

Mosaico 18k Yellow Gold Multi-Gemstone Domed Earrings - 7.1g
Located in Providence, RI
These vibrant 18k yellow gold earrings by Mosaico are a playful yet elegant celebration of color and craftsmanship. Each spherical drop is intricately openworked and inlaid with an a...
Category

Late 20th Century Lever-Back Earrings

Materials

Multi-gemstone, 18k Gold, Yellow Gold

Vintage 18k Gold Diamond and Ruby Dangle Earrings - 14.1g
Located in Providence, RI
These exquisite 18k gold earrings are a captivating display of fine craftsmanship and elegant design. Featuring a blend of white and rose gold, the structure weaves together intricat...
Category

Mid-20th Century Dangle Earrings

Materials

Diamond, Ruby, 18k Gold

21k Yellow Gold Jasper Bead Necklace, 36 inches - 104.0g
Located in Providence, RI
This stunning 36-inch necklace features a luxurious blend of 21k gold and creamy jasper beads. The textured gold spheres, each with a faceted lattice motif, alternate with soft oblon...
Category

21st Century and Contemporary Beaded Necklaces

Materials

Jasper, Yellow Gold

KISUM 14k White & Yellow Gold Large Smoky Quartz Diamond Ring, Size 8 - 32.9g
Located in Providence, RI
This striking KISUM ring showcases a bold design in 14k white and yellow gold. The architectural band features a central gold beaded channel framed by rows of white diamonds, adding ...
Category

20th Century Dome Rings

Materials

Diamond, Quartz, 14k Gold, White Gold, Yellow Gold

Antique 14k Yellow Gold Rare Box w/ Diamonds - 48.6g
Located in Providence, RI
This antique 14k yellow gold trinket or pill box is a refined collectible, blending elegance and artistry in a compact form. The circular box is crowned with a finely sculpted repous...
Category

Antique Late 19th Century Unknown Boxes and Cases

Materials

Diamond, 14k Gold, Yellow Gold

18k Yellow Gold 5 Strand Multi-Stone Adjustable Necklace, 16 to 18 inches - 37.7
Located in Providence, RI
This elegant 18k yellow gold necklace features five cascading strands adorned with delicately faceted round beads in a palette of soft, translucent hues. The beads are individually w...
Category

20th Century Multi-Strand Necklaces

Materials

18k Gold, Yellow Gold

Shreve & Co. 18k Tri-Gold Flower Ruby & Diamond Earrings, 19.4g
By Shreve & Co.
Located in Providence, RI
These striking 18k tri-gold earrings by Shreve & Co. are a bold yet elegant statement of vintage luxury. Crafted in rich yellow gold, the domed surface features a textured matrix of ...
Category

Vintage 1980s Italian Drop Earrings

Materials

18k Gold, Yellow Gold

Vintage Antonio Pineda Fine 970 Silver Hinged Rod Amethyst Bracelet, 7" - 204.0g
By Antoñio Pineda
Located in Providence, RI
This striking vintage bracelet by renowned Mexican silversmith Antonio Pineda is crafted in high-purity .970 silver and showcases his iconic sculptural design. Composed of a series of curved vertical silver panels, the bracelet is interspersed with 12 cylindrical rods of deep purple amethyst, creating a bold, rhythmic contrast of form and color. Each segment is expertly hinged for comfortable, articulated movement around the wrist, while the substantial weight and craftsmanship offer a distinctly luxurious feel. The piece is secured with a box clasp and safety chain for added peace of mind. Marked Sterling Mexico 970 Silver, this bracelet is a standout example of Pineda’s modernist aesthetic—architectural, refined, and unmistakably collectible. - Measurements: Width 47.0mm (1.85 in), Thickness 6.4mm (0.25in, Weighs 204 grams - Length is 7 inches - Hallmarked Sterling Mexico Silver...
Category

Mid-20th Century Mexican Link Bracelets

Materials

Silver