US guides
A US online diamond purchase should be one specific certified stone, priced in USD, shipped insured to a United States address with its lab report.
US retail sites sometimes sell “about 1 carat, G/H, VS.” That is a bucket, not a diamond. On Carat Mate each listing is one carat weight, one color, one clarity, one lab, and one price. Match the report number to the stone before you pay.
You are buying a loose diamond, not a finished ring. The parcel for a United States address includes that stone and its certificate. Many US buyers then take the diamond to a local jeweler for a setting. Engagement-ring pages on Carat Mate are center-stone searches.
Carat Mate ships the certified loose diamond and its lab report to United States addresses. Prices on the site are in USD. Wrong-item returns may be considered within 3 days of delivery, subject to review.