Explore a myriad of necklace styles and designs, including classic chains that add a touch of refinement to any outfit, vivid gemstone pendants that reflect your unique style, and enchanting diamond necklaces that sparkle with every movement you make. Costco offers necklaces with precious and semi-precious gemstones in an array of colors to ...

Experience the luxury and beauty of a fine diamond necklace from Costco. Our exclusive collection features a wide array of styles, available in various carat weights, diamond shapes, and price points.

Costco’s team of Gemologists, all of whom have graduated from a GIA program, inspect for diamond color, clarity, cut, and carat weight. When purchasing diamond jewelry from Costco, you can be assured you will receive quality jewelry at an unparalleled value.

Costco Travel sells exclusively to Costco members. We use our buying authority to negotiate the best value in the marketplace, and then pass on the savings to Costco members. Shop Travel

Shop diamond necklaces, like pendants and diamond strands, at Costco.com to find the perfect piece of jewelry for you or your loved one at a great value today!

Ruby and Diamond 14kt White Gold Necklace Oval Approximately 6 x 4 mm Ruby 0.43 ctw, VS2 Clarity, I Color Diamonds Adjustable 16", 17" & 18" Chain

Visit Costco.com for spectacular gemstone necklaces, and discover a rainbow of color! Our impressive inventory offers a large selection of gemstones, including fiery rubies, aquamarine, crimson garnets, lapis, and sapphires in an array of hues.

When you purchase an article of jewelry with a diamond of less than 1.00ct, you will receive an Article of Description written by one of our Gemologists, with a degree from GIA, detailing your jewelry piece.

Tahitian Cultured 9-11.9mm 34" Multi Color Pearl Strand With 18Kt White Gold Clasp . 18kt White Gold Clasp; Only One Available; International Gemological Report Included

Indulge yourself with a beautifully crafted necklace from Costco. Whether you prefer the timeless elegance of polished yellow gold chains or the brilliance of show-stopping gemsto