US guides
Trade-in offers, when a jeweler makes them, are discretionary and below retail.
Keep the original report so the first stone stays identifiable. Lab-grown stones are harder to trade in the US than natural stones, and neither returns the full USD price.
Buy a center you like at today’s budget. If you upgrade, you will be shopping listings again, not redeeming a savings bond.
Use filters you can live with for years, especially cut. 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.