What does NC 925 mean on my Custom design 925 Sterling silver earring?
925 means that 925 díly z 1000 are silver, with the balance most commonly copper. This alloy is commonly known as ‘sterling’ silver, and is very commonly used for jewelry. The NC is a maker’s mark, and could be the jeweler’s initials, a company’s name, or such.
Is Pandora jewelry of good quality (their earrings and bracelets)?
Technically it is just a 925 silver jewelry and if you wish to pay for brand value then you can buy as quality is same like non branded silver jewelry.
To put it in prespective a 100US$ item bought at Pandora can easily be bought for US$ 10 in market or non branded store. You might not get the exact design due to patent legalities.
Co dělá 925 ch mean on a earrings?
Probably means that your piece is a sterling silver earring. The .925 refers to 92.5% of the percent of silver used in the alloy that the earrings are made of.