With our exclusive 100% diamond trade-in policy, you may trade in your diamond(s) purchased from the Gold & Diamond Source toward another diamond(s) of equal or greater value at any time. Your trade in value is the original purchase price, excluding tax. The lifetime trade in policy is valid for in-store and online purchases. Qualifying items include diamond solitaire rings, diamond solitaire earrings, diamond solitaire pendants, center diamonds only mounted in a diamond semi mounting, and center diamonds only in diamond bridal sets.