20.5 karat gold =850 (M85)
what does cop 89 mark mean
10k 7
I believe(though im not sure,) it stands for STainless Steel and the quality steel(which if what I suspect is right, thats what the 7 is for)
it possible could mean size
D14 is the size of the band. It equals a standard size 7.
The "925" mark indicates that the ring is made of sterling silver, which contains 92.5% pure silver. The "7 NV" engraving is likely a manufacturer's mark or a designer's mark to identify where the ring originated from. The diamonds in the ring may also have their own markings to indicate the quality or characteristics of the stones.
There are 7 electrons in the outer "ring" of bromine.
The WA ( World Archery Federation, former FITA ) targets are coloured as follows, from the inside out: * 9 ring, 10 ring and inner 10 ring - gold * 7 ring, 8 ring - red * 5 ring, 6 ring - blue * 3 ring, 4 ring - black * 1 ring, 2 ring - white
925 indicates the purity of the silver out of a possible 1000. A purity of 925 is fairly standard because they take Fine silver (999) and add a small amount of copper to give it strength and beauty. 925 is more commonly known as "Sterling Silver". A US size 7 ring would be size N½ in Australia, Ireland and the UK.
About Size: 7 US.
I have found that the rj stamp is used by avon but i dont know anything else on what it means.