It stands for flat size 4. Flat is the style. It isn't rounded or beveled like most.
what does rvl 14k mean
f4. That's why it's marked f4
14K SDI on jewelry stands for 14 karat gold with a coating of solder depletion, which is a technique used to strengthen the piece of jewelry. The "SDI" notation indicates that solder depletion has been used in the manufacturing process.
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On my chance it stamp TGF 14K
What does the S.E stand for 14k on gold gold
14k JTC 989