Find an expanded product selection for all types of businesses, from professional offices to food service operations. Our Costco Business Center warehouses are open to all members.
Delivery is available to commercial addresses in select metropolitan areas.
NEW! Order items for Same-Day Delivery to your business or home, powered by Instacart.
Optimize your sight
Did you know you can also monitor your credit with Complete ID? Complete ID includes credit monitoring, identity protection and restoration services, all at a Costco member-only value. Sign up now and start taking control today.
Sign Up Today
Book Deals Now
Sign In For Price
Whether it’s a gift for a birthday or simply an alternative to the standard diamond engagement ring, gemstone rings are a gorgeous and unexpected choice. Costco carries a diverse selection of beautiful gemstone rings, in a kaleidoscope of colors, including purple amethyst, rich sapphires in an array of hues, color-saturated rubies and emeralds, and popular tanzanite. Looking for drama? Choose a breathtaking emerald surrounded by diamonds as a wedding ring? Love to add a splash of color? Try adding a vibrant ruby eternity band to her existing engagement ring. Whatever your choice, you’ll find exactly what you’re looking for on Costco.com.