كيف يكتشف المصنع عيوب الإعداد قبل الشحن
A lab grown diamond can leave the growth chamber with perfect clarity, but that perfection means nothing if the stone is chipped, tilted, or loose in its setting by the time it reaches the customer’s door. That’s why lab grown diamond setting QC — the quality-control process that happens between the jeweller’s bench and the …