Origin reporting for lab-grown diamonds is limited, and polishing location is generally not included in official documentation.
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Polishing country (e.g. “polished in India”) may sometimes be mentioned informally by suppliers or on branded cards.
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This is not independently verified or included in lab reports.
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Laboratories do not currently report polishing origin for lab-grown diamonds.
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Unlike natural diamonds, polishing location isn't tracked or certified by GIA, IGI, or other major labs.
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No paid origin reports are available for polishing origin. If you are interested in additional certification for lab grown stones, we can suggest searching for SCS-007 certified goods; more information regarding this can be found here