US guides
You are changing origin and shape at once. Do not pretend the grades alone explain the USD gap.
If mined origin matters, stay in the natural catalog and adjust carat or color. If the look on the hand matters more, price the lab-grown oval honestly.
Whichever you pick, the report has to match the stone that ships to the US.
Open both listings rather than arguing from a rule of thumb. 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.
