Why does the broken diamond inlaid inlaid next to the ring become black?

1 thought on “Why does the broken diamond inlaid inlaid next to the ring become black?”

  1. Diamonds will not turn black. It may be that the small holes under the drill are dirty after a long time. Try it with a toothbrush with a toothpaste. It's just that the black stain below looks black.

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