The 925 means that it’s 92.5% silver which is high enough grade to be sterling. RJ may be for RJ Graziano who does a lot of work in costume jewelry and bridge jewelry. Bridge jewelry is a bit better then costume, but, not quite fine jewelry. CZ probably means that the diamonds are actually cubic zirconias. RJ Graziano mostly uses silver plated jewelry over base metal. That would indicate it was silver plated that means that it is real silver, that is the number used for silver, like on tiffany’s jewlery it says 925 if it is real silver.
RJ could be the maker’s initials. 925 means that the metal fineness is 925 parts in 1000. Presumably silver, in which case it is 92.5% silver and 7.5% copper or other alloy, a standard for silver known as sterling. 925 means it is sterling silver, which is 92.5% silver. The QT can be a signature of an artist. QT commonly is a signature of a 20th-21st century designed, Carolyn Pollack. RJ could be the maker’s initials. 925 means that the metal fitness is 925 out of 1000. that means that it is real silver, that is the number used for silver, like on tiffany.
CR Sapphires Silver Ring 925 RJ
CR sapphires silver ring 925 RJ have the same physical properties and chemical composition of real sapphires. For example, blue CR sapphires get their deep-blue color from iron oxide and titanium oxide, just like real sapphires. The only difference is that they are grown in a lab using a multi-step heating process that creates the stones from raw materials, rather than coming from a mine in their whole form from Sri Lanka or Burma. CR sapphires are also always flawless, or nearly so. As a result, many CR sapphires are more brilliant than natural ones.
Whenever you purchase a piece of jewelry, make sure that you have it independently appraised by a trusted jewelry. Many jewelers will not tell you that a sapphire is in fact a CR sapphire even when asked directly in order to get a higher price for the item. You must ascertain before you buy exactly what you are buying and how much it is worth, particularly if you are buying the jewelry as an investment.