What does rs 10k mean on a ring?

"RS 10K" on a ring typically indicates that the ring is made of 10 karat gold. Karat (K) is a measure of the purity of gold, with 24K being the purest form. Therefore, 10K gold contains 41.7% pure gold, with the rest being made up of other metals for added strength and durability. It is important to note that higher karat gold is softer and more prone to scratching or bending compared to lower karat gold.