: Ask for original receipts, past appraisals, or grading reports to verify the item's history.
: Build relationships with trusted dealers. For online purchases, ensure there are multiple clear photos and a transparent return policy. buy sell antique jewelry
: Use the "5 Cs" (cut, color, clarity, carat, and certification). Unique older cuts like "Old Mine" or "Asscher" can be highly collectible. : Ask for original receipts, past appraisals, or