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Find the Best Diamond & Gemstone Rings at Costco!

Whether it’s for an engagement, anniversary, or just because, there is no more beautiful gift than fine jewelry. At Costco, we offer a large selection of diamond and gemstone rings to suit every style and budget. From promise rings and wedding sets, to cocktail rings, we have something for every occasion. You can even customize your shopping experience by selecting your price point, metal preference, or stone shape. Best of all, you can shop confidently knowing that Costco’s team of dedicated buyers and Gemologists have inspected every diamond and gemstone to ensure it meets the strictest quality standards in the industry.

Diamond Rings for Every Occasion

Choose from our diverse inventory of diamond & engagement rings, which includes dazzling halo rings, elegant baguette rings, and lavish multi-stone rings in numerous styles. Costco also carries popular three-stone rings, which are a sentimental choice for both anniversaries and engagements. Browse our special collection of one-of-a-kind bridal & wedding ring sets in styles that range from traditional to contemporary. By purchasing an engagement ring and wedding band together, you’ll be assured that they complement one another beautifully.

And if you’re looking for something simple and elegant, Costco has an exquisite line of solitaire rings. Paired with a sparkling diamond band, this classic look has captivated women’s hearts for decades. Our solitaire engagement rings are available in every shape, including round, princess, cushion, asscher, emerald, and more.

Luxurious One-of-a-Kind Rings

Costco is proud to offer an exclusive selection of luxurious one-of-a-kind rings that are truly spectacular. Each ring is hand-selected for its superb quality and brilliance. This show-stopping collection includes colorless diamonds, exotic emeralds and rubies, and fancy pink sapphires. And if you’re searching for something truly extravagant, we have fancy colored diamond rings in sumptuous shades of yellow and pink.

Gold & Platinum Bands for Men & Women

Shop Costco for a great selection of women’s and men’s gold & platinum wedding bands in numerous sizes and styles. Choose from white or yellow gold, two-tone or tri-color gold, or platinum. You’ll find comfort fit bands with channel-set diamonds, brushed platinum bands with beveled edges, and gold bands with braided accents. And if you’re looking for a wedding band to wear with an engagement ring, we have delicate gold or platinum bands that will work beautifully.

Gorgeous Gemstone & Pearl Rings

Costco has gorgeous gemstone rings in a rainbow of colors, from garnet rings to sapphire and diamond eternity bands. If you’re looking for a birthday or Mother’s day gift, a birthstone ring is a wonderful idea. Choose from brilliant blue topaz, amethysts, tanzanite, luminous opals, and more! And if you’d like a splash of color in your wedding set, a gemstone engagement ring is the perfect choice.

We also have an elegant selection of pearl rings with plenty of classic freshwater and akoya pearls in soft white, cream, and pink colors. If you’re searching for something bold, consider an exotic black Tahitian pearl, or a golden south sea pearl surrounded by yellow sapphires. And if you already own a pearl necklace, it would look lovely paired with a matching pearl and diamond ring.