In newer designs Ive seen where Ster/10K indicates that the ring is sterling silver, plated with 10K gold. In older designs, the 2 stamps usually mean that part of the ring is sterling and part of the ring is 10K gold.
stamp tiffany and co ster 926. other side states Rockefeller university 1901
I Believe It would be the ring being sterling silver with 10k black hills gold.
The abbreviation "sts" on the inside of a ring stands for "sterling silver."It is not my understanding that this is an approved stamp for sterling silver. Jewelry that is sterling silver can be marked sterling ster. or 925 and up to show the content of the sterling per other metals. STS is a jewelry company that has a New york, Canadian, and foreign base. So likely the ring is a maker's mark.
Sterling silver is most often used for jewelry because of its combination of attractiveness and durability. Acceptable quality marks for sterling silver include: sterling, ster and .925.
STER is short for STERLING, which is 92.5 silver.
Ster Century was created in 1996.
Ster cinemas was created in 2004.