Stolen Base
The "SB 10K" marking on your ring indicates that it is made of 10 karat gold, which means it contains 41.7% gold and 58.3% other metals. The "SB" likely refers to the manufacturer or designer's initials or brand. This mark is a way to assure the quality and authenticity of the gold content in the jewelry.
Sandra Bullock, Sean Bean, Sarah Bernhardt, Spencer Breslin, Sara Bareilles...
SB means Stolen Base, in a scorebook.
stolen base
SB 10 karat likely refers to the type of metal used to make the ring band, which is 10 karat gold. The "SB" could be a manufacturer's mark or initials. The diamonds on your ring may have their own separate grading or certification.
SAABF - "Should Auld Acquaintaince Be Forgot" (from "Auld Lang Syne")
Stolen bases.
The "48" inside your ring likely refers to its size, indicating that it is a size 48 in a specific sizing system, which can vary by country. The "SB" may represent the maker's initials or brand name, while "14k" indicates that the ring is made of 14-karat gold, signifying its gold content. To confirm the specifics, you may want to consult a jeweler.
The Negro League Baseball Team who had the initials BB on their uniforms were the Birmingham Black Barons
Several former baseball players had the initials D B. Don Baylor, Dusty Baker and Dante Bichette are a few.
According to espn.com, the only Major League Baseball player with the initials S.C. is Shawn Camp, relief pitcher for the Toronto Blue Jays.
This is just a guess. Could it be shortstop?