1. to inject or implant (a vaccine, microorganism, antibody, or antigen) into the body in order to protect against, treat, or study a disease. 2. to affect or treat (a person, animal, or plant) in this manner. 3. to introduce (microorganisms) into surroundings suited to their growth, as a culture medium.
925 is a standard sign used to mark sterling silver, and the meaning of the stamp is that the silver content in the piece is 92.5% (i.e., the remaining 7.5% is comprised of other elements). Perhaps because the âgoldâ jewelry you are looking at is not actually made of gold.
Use the number marks on gold jewelry to learn more about it. Look for a number followed by âk,â for example â12k,â using a loupe or magnifying glass. American jewelry is often marked by karat, stamped into the inside of a ring or bracelet, on the edge of earrings or the back of a charm. If the jewelry is marked 10k, thatâs the minimum mark used in the United States. Older gold may not be stamped but is usually 9k.