Buying Diamond Rings At Costco May 2026

Costco maintains strict minimum quality requirements for all natural, untreated diamonds:

Typically set in high-quality 950 Platinum or 14kt/18kt Gold . buying diamond rings at costco

Diamonds of 1.00 carat or larger include third-party grading reports from the GIA or AGS. The Costco Trade-Off Jewelry Buying Guide Diamonds - Costco Wholesale Costco maintains strict minimum quality requirements for all