Gold is generally the most commonly used metal to set diamonds in.
Diamonds are typically set in metal, so as to protect the stone from loss.
Yes, sometimes diamonds are set into plated jewelry.
I like the quality of the Bezel set 3 Diamond Jewelry Set in 10K White Gold.
Since diamonds hold enormous value for their size, any metal used to set a diamond should be able to resist casual bumps and bangs, sufficient to protect the diamond. Usually, diamonds are set in high-carat gold, 14 karat or 18 karat (higher karat gold is too soft), or platinum. Diamonds are also set in palladium, steel and other metals, but not typically in jewelery that will be bumped or banged.
A non-pave watch is a watch that has diamonds on it, either on the face or bezel, as opposed to a pave watch that has diamonds closely set together in metal around the entire bezel.
There is zero relationship between the stamp on jewelery metal and the stones set in the metal. A local jeweler using a probe can answer your question.
Apparently, you are interested in whether or not the stones are real diamonds. Your best option is to take the jewelery to a local jeweler and ask the jeweler to use a probe to confirm that the stones are either diamonds or not diamonds.
Some diamonds do get set in 925 silver, but they are usually just diamond chips. Diamonds are commonly set in platinum, white gold and gold.
Diamonds are set in metal so that light can reach the stone and reflect/ refract out of the stone. Usually, the diamond is set with prongs, or at least secured into the jewelery with metal. When the metal prongs or setting pull away from the diamond -- for any reason -- the diamond can be lost from the setting.
The term 'were' purports to look back into the history of diamonds as adornment, which history reaches back about 6,000 years. Copper is a relatively soft metal and would not be secure for a diamond -- for long. There may have been diamonds that were set in copper. Today, a buyer can commission that a diamond be set in rose gold, which is gold mixed with copper, to give the setting somewhat the copper colour, while securing the gem in a stronger metal.
You may be thinking of pavé setting.
There is only one jack of diamonds in an ordinary set of cards.