From wedding proposals to promise rings, Costco has diamond rings that are perfect for every occasion. We have matching bridal & wedding ring sets, fashion rings, diamond stacking rings, and a wide range of Costco engagement rings for women and men. Choose from a variety of popular designs, like halo rings, 3-stone rings, and emerald cut engagement rings, all set in gleaming platinum or gold. If you're shopping for solitaire rings, you’ve come to the right place. We carry all the popular cuts, including round, cushion, princess, and oval. Whether you’re shopping for a delicate diamond set in rose gold, or a show-stopping yellow diamond ring, you’ll find unbeatable quality and prices at Costco.com!

At Costco, you’ll find an exceptional selection of wedding rings & bands, with or without diamonds, in numerous sizes, materials and finishes. We have satin finish wedding rings, sparkling diamond bands, and gemstone and diamond eternity rings in every style imaginable. Choose a band that coordinates with an existing engagement ring, or select a wedding band that can be worn all by itself. Of course, we also carry traditional wedding bands for men and women, in platinum, gold and tantalum.

Explore Costco’s collection of premium gemstone rings for women and men. These exquisitely crafted pieces are adorned with a rainbow of precious gems, including vibrant rubies and amethysts, opals, blue topaz, spinel, tourmaline, and delicate pink morganite. Purchase a beautiful birthstone ring for someone special, or a cocktail ring in your favorite color. If you’re thinking of proposing, consider choosing a diamond and emerald ring, or an elegant sapphire engagement ring. We also have a lovely selection of pearl rings, featuring freshwater, Akoya, South Sea and Tahitian pearls.