Ring stamp meaning? The inside is stamped with a diamond shape and the letters "STR" (2nd image). I assume STR means this is a sterling silver ring, but am curious what the
What does a 925 mark mean when stamped on jewelry?
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Marks Stamped Inside Rings – Albert Hern
A guide to what jewelry stamps mean. | Think Engraved
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Does the diamond symbol on the inside of a ring mean it's real? - Quora
Marks Stamped Inside Rings – Albert Hern
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F in a Diamond
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What Do the Diamond Symbols Stamped on Jewelry Mean? | BriteCo Jewelry Insurance
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How to know that the identification diamond symbols stamped on jewelry – CDL FINESHINE
Why is Z stamped on my gold and diamond ring? - Quora
What does “ultragem (SD)” stamp mean on inside of ring? : r/jewelers
What does a 925 mark mean when stamped on jewelry?
The Ultimate Guide to Jewelry Stamps and What They Mean | Philophrosyne
A guide to what jewelry stamps mean. | Think Engraved
MARKS STAMPED INSIDE RINGS – Jewelry Secrets
