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Ring and jewelry manufacturers are required by law to stamp their jewelry with a purity symbol such as "14K" or "PLT". However, some also include an additional stamp or engraving to mark a designers name, collection type, or even a short message describing the piece. This extra message is not required or regulated by law and there are a plethora of marks or engravings a jewelry item can have in it.
While we can't be sure unless we examine the piece, "SD" sometimes means "synthetic diamond(s)". If one is sure that the diamonds (if any) in the jewelry or ring are real "SD" could very well stand for a designers name or collection type.
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∙ 10y ago
Remedios Mayo
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