What does 10k SG mean on jewelry?

The term "10k SG" on jewelry indicates that the piece is made of 10 karat gold, which contains 41.7% pure gold mixed with other metals for added strength and durability. The "SG" often stands for "solid gold," signifying that the jewelry is not plated but rather made from solid 10k gold. This marking helps consumers identify the quality and composition of the gold in the item.