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Engagement Rings

Shop by Metal

Buy online & pick up from your local warehouse.


Costco offers in-warehouse pick up for your convenience. Please note, standard delivery time will apply and only the bill-to credit card addressee may pick up the product. Valid state or government-issued photo ID is required at the time of pickup.


 




 






 
 



 








 





Timeless Beauty in Every Sparkle - Choose Your Symbol of Love

At Costco, you’ll find the engagement ring of your dreams at an incredible value. Our collection of exquisite engagement rings is designed to celebrate your unique love story and enduring commitment. Costco’s team of expert gemologists thoroughly scrutinize each diamond for quality and craftsmanship, to ensure your engagement ring is of unparalleled value. From classic solitaires and breathtaking bridal ring sets to glamorous halos , three stone rings , show stopping multi-stone rings , and one-of-a-kind treasures , each ring showcases the exceptional beauty and brilliance of meticulously chosen diamonds. Enjoy the excitement of engagement ring shopping with the confidence of knowing our experts have chosen only the best for your selection.

Browse Our Captivating Collection

Fall head over heels for our captivating array of engagement rings that exude romance and elegance. Whether you seek a classic solitaire or a setting with multiple diamonds, we have a ring that will perfectly complement your partner's individuality. With a range of metals, settings, and diamond shapes, we're here to make your search as effortless as possible. Not sure which precious metal to select for your engagement ring? Our guide to precious metals lays out the benefits of each option.

The Magic of Diamonds

At the heart of every marriage lies a dazzling diamond that symbolizes your passion and commitment. At Costco, we are honored to be a part of the experience of selecting your forever ring. We take this responsibility seriously by employing only the best gemologists, trained in the inspection of precious gems. Our hand-selected diamonds are of the highest quality, perfect for symbolizing your enduring love. From the dazzling shimmer of a round brilliant to the modern allure of a princess cut, you’re sure to find the perfect diamond in our wide selection.

Not sure how to choose the perfect diamond? Our comprehensive diamond buying guide is here to assist you. Learn about the 4 Cs - Cut, Clarity, Carat, and Color - to make an informed decision that suits your preferences and budget. What some consider the most important characteristic of a diamond, cut is the basic shape of the diamond and the quality of its proportions. Our guide features definitions and illustrations of each diamond cut, allowing you to explore your options before you start shopping.