A leaked customer service chat has exposed a harsh reality of the diamond trade-in market: a microscopic flaw near your stone's serial number can instantly slash its resale value in half.
The Costly Reality Check
In the message exchange, a representative informs a client that a machine scan of their diamond ring revealed a tiny chip and a dark spot right next to its GIA laser inscription on the edge (girdle).
Because of this microscopic blemish, the store applied a brutal deduction penalty:
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The Diamond Stone: Originally valued at 23,000,000 VND, it suffered a massive 50% deduction, leaving the customer with only 11,500,000 VND.
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The Ring Setting: Subjected to a standard 20% deduction (dropping from 23,000,000 VND to 18,400,000 VND).
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The Final Payout: The customer walked away with 29,900,000 VND—losing a huge chunk of their initial investment.
"According to regulations, [a chip] results in a heavy deduction, or in severe cases, we will refuse to buy it back entirely."
— Customer Service Representative
Why the GIA Code Area is Vulnerable
The girdle (outer edge) is the thinnest and most fragile part of a diamond. It is also where the GIA lasers the certificate number. Micro-chipping in this area commonly happens due to:
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Improper Setting: Jewelers applying excessive pressure over the inscription when securing the prongs.
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Everyday Wear: Accidentally tapping the edge of the ring against hard surfaces like countertops or metal.
Quick Tip for Consumers
Always inspect your diamond's laser inscription under a microscope before purchasing or leaving a jewelry store to ensure there are no pre-existing micro-cracks on the edge.
