These Round Brilliant Diamond Platinum Stud Earrings feature a total diamond weight of 3.00 carats set in 950 platinum. Each stone is graded VS2 (Very Slightly Included) clarity and Near Colorless (I) color, with an Excellent GIA cut grade. All diamonds offered by Costco are natural and untreated.

The earrings feature a secure screw-back post style. A GIA (Gemological Institute of America) Gem Trade Laboratory Diamond Grading Report is included with this item, certifying the characteristics of the diamond based on 10x magnification examination. A Jewelry Grading / Gemological Report is also included to confirm the item's authenticity and quality as independently verified by a certified gemological laboratory.

Air shipping via UPS insured is included in the price, with signature required upon delivery. When returning this item, Costco warehouses may require additional time (up to five business days) to verify the diamond with a Graduate Gemologist before approving a refund.