One Reply to “The diamond ring is engraved with CTF au750 and do 300ct SZ, what do these two mean respectively”

  1. CTF is the abbreviation of Chow Tai Fook, au750, which means that the ring support material of the diamond ring is an alloy with a gold content of 75%, that is, we often say 18K gold. D stands for diamond, CT is the abbreviation of diamond weight unit carat, and do.300ct means that your diamond ring is 0.3 carat, that is, 30 points.

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