Herringbone accents add a textural element to this chic chain necklace, while cushion-shaped onyx cabochons provide a rich contrast with the sterling silver design. From Tiffany Kay. Sterling silver Total onyx gemstone weight is approximately 26.00 carats Double-sided stations of cushion-shaped faceted onyx cabochons with herringbone texture design on border; oval herringbone texture design links and polished oval links; oxidized finish Lobster claw clasp Measures approximately 36"L x 1/2"W at stations Imported Sterling silver Total onyx gemstone weight is approximately 26.00 carats Double-sided stations of cushion-shaped faceted onyx cabochons with herringbone texture design on border; oval herringbone texture design links and polished oval links; oxidized finish Lobster claw clasp Measures approximately 36"L x 1/2"W at stations Imported