"ND" before the 925 (ND 925) is more indicative of "Norwegan Design"...perhaps a piece made by Anna Gretta Ekker. However, there is usually a more extensive hallmark or signature that would give you additional information.
If the "ND" is after the 925 (925 ND) it is most likely a piece produced in Bangkok, Thailand by (or for) Nida Factory Co., LTD. This is normally the only marking on the piece.
Style will also help you. A more modern design (1960's - 1970's) will probably indicate the Norwegian Design, while an older, more ornate design will probably be a product of Thailand.
Regarding the value, the Norwegian Design is significantly more valuable because of the artistry, identification of the artist by way of the hallmark (signature or marking) and limited production. The jewelry produced in Thailand is basically anonymous and mass-produced.
The 925 represents .925 (92.5%) pure silver...which is the benchmark for sterling silver.
What does 925 inside a silver ring mean
.925 percent silver.
What does D mean in a silver ring
925 is 92.5% Pure Silver, commonly known as Sterling Silver.
it is not g25, it is actually .925, as in .925 silver (92.5% pure silver).
A ring that has 925 NH stamped inside of it is made of sterling silver. This also means that the ring is made up of 92.5% silver.
925 m/c
925 always means silver
The silver content is .925
"925" refers to the purity of the silver.
The 925 means that the ring is sterling silver (92.5% silver with 7.5% copper). Not sure about the DQZ2 though. It might be a manufacturer's mark, but I'm not certain.
925 is the hallmark for Silver & MHJ is often stamped inside jewellery made by 'Michael Hill Jewellers'The 925 indicates 92.5% silver and 7.5% copper...better known as Sterling Silver.