OTC 10K on jewelry typically indicates that the piece is made of 10-karat gold that has been produced using an over-the-counter (OTC) process. The "10K" signifies that the gold content is 41.7% pure gold, with the remaining 58.3% consisting of other metals. This marking assures buyers of the gold's quality and authenticity, suggesting a balance between durability and value.
Short for Jewelry
9 karat
It means 20 karat gold
k stands for karat.Example: A ring setting in 14k , which means that 14/24 ratio is gold, 10/24 other metals.
"fc 10 k" likely indicates that the engagement ring is made of 10 karat gold, and the "fc" may represent the manufacturer or jeweler. It is a common marking to indicate the metal purity and manufacturer of the jewelry.
18k white gold
A gold ring that is stamped with 10 K F means that the ring is 10 karats. The F means that the ring is considered fine jewelry.
14 (K)arat (Y)ellow gold
If you mean: 10-2k = 4 then k = 3
"10 K FD" on jewelry typically refers to the metal purity of the piece. In this case, "10 K" indicates that the jewelry is made of 10 karat gold, which means it is 41.7% pure gold. The "FD" could potentially be a manufacturer's mark or a designer's signature, but without further context, it's difficult to determine its exact meaning.
what does 3 R(backwards R) K stamped on jewellery mean
The K means carat, which is a unit of measurement for things like gold and diamonds. So, 8 K means 8 carats.