何をしますか 925 そして銀の指輪を意味します?
I think you are reading the number backwards. Should be read as 925. That’s the amount of silver in the the total alloy, in other words 92.5% 銀. Commonly called Sterling silver. American coin silver pre 1964 は 900 fine as an example.
何をしますか 925 R on one side of the ring and China 10 on the other?
こんにちは ,
I am a designer and creative director for a Chinese Jewelry factory producing silver jewelry and we always stamp the 925 stamp as it proves its sterling silver (925 のうち 1000 which is pure silver )
The stamp China is because some countries or some clients need also the stamp of the country of provenance of the jewelry
What does ‘UD’ stamped on the inside of a ring mean?
The markings on Jewery are for identifying metals, carat weights, manufacturer, tradeMarks, 宝石商, or designers. Your UD could mean Universal Designers If someone uses that name. There are many unified marks. Your UD could only be one of three things a trademark ,a jeweler, or a designer. There is a Jewery company called universal jewelry but I don’t know if that is where your UD is from but now You have Some sort of ideal of what it could be.