Ctf is the abbreviation of Chow Tai Fook. Generally, Chow Tai Fook brand jewelry will have this logo on it. Au750 indicates that the material of the diamond ring is 18K gold, that is, 75% gold, and d0.3 10ct indicates that the size of the diamond on the diamond ring is 3 1, 7908 15-2 should be the diamond ring number, lj.

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