The 925 mark is a standard indicator of sterling silver. The “ch” is most likely the maker’s mark. The best known “ch” mark was for the British jeweler Charles Horner (1837-1896) operating out of Halifax UK.

What does it mean when a ring is stamped 585?

14K 585, or simply “585.” This stamp refers to the amount of gold in the alloy per 1,000 units. 14K gold contains 58.3% pure gold, or 583 grams per thousand, and as such uses a “585” stamp to show its purity.

What does 25K mean on a ring?

25K could be 6 nines, a figure of speech that simply means “purer than 24K.” Or it could be 3 nines. Gold is easily alloyed with Rhodium, Platinum, Copper, or silver, so I guess the key point is not whether it is 99.999 or 99.999999, but what elements are alloyed with it beyond those last 3-6 decimal places.

What does SU stand for on jewelry?

SU in a circle on jewelry is an Italian code for Sterling Silver.

What does A.P stamped in a ring mean?

Will wait to hear from you Thanks for your attention. A. P stamped in a ring with a 10K or 14K means it is a HIGH QUALITY GOLD called “Plumb” You have to be a registered certified goldsmith to use this type of GOLD. The gold is certified PLUMB HIGH VALUE QUALITY. There…have a nice evening. A. Thanks, Sing!

What kind of stamp is on a gold ring?

This usually indicates the ring size. A lot of jewelry will have several stamps or marks. Often there is one stamp to indicate the purity of the gold (“14K”, as mentioned above). The purity mark can be accompanied by a second mark called a maker’s mark or a jeweller’s stamp.

What does GF mean on a gold stamp?

These pieces also generally display the karat fineness of the gold. GF – this stands for gold-filled, which is a term that means a thin layer of gold was bonded to a base metal to make this piece. So now that we have the basic stamp meanings down, let’s go through some of the most frequently asked questions that we hear from customers:

What kind of stamp is on a Tiffany ring?

Take Tiffany for example, they stamp their rings “ T & CO “. Manufacturer stamps can be very useful if you need to find out who made a ring so you could contact them for questions, concerns or even ordering! There are a lot of great jewelry designer’s out there that put their name right inside their rings.