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Now Showing: How to make a solid gold credit card; 200-carat rough turns into 33 single diamonds and turning amethyst invisible
 5.1 k views | Posted February 04, 2022 |
This week, a jeweller melts gold to make a one-of-a-kind credit card, learn how to turn an amethyst invisible with the magic of light refraction and watch how a 200-carat rough diamond gets cut into 33 individual diamonds.
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