US guides
A G / VS2 / 1.00 carat round is not one price.
Excellent versus Very Good cut is a real retail difference. So is natural versus lab-grown. So is a stone with a visible inclusion the grade allows.
If the USD gap remains after those match, prefer the stone whose video looks better, not the one with a louder description.
Line up the certificates. Do not line up the marketing lines. 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.