925 Silver is Sterling Silver. It is an alloy of silver containing 92.5% pure silver and 7.5% other metals. Fine silver is 99.9% pure and is generally too soft for producing functional objects; therefore the silver is alloyed with another metal,usually copper, to give it strength while preserving the malleability and beauty of the precious metal – making it ideal for silver jewellery.
In many countries, precious metals must be stamped with a quality mark such as “925” for sterling. Some countries, such as the United Kingdom, require precious metal jewellery to be submitted to a governmental assay office for destructive testing (sounds a bit brutal doesn’t it?) before being marked and sold.
In the United States, The National Gold and Silver Marketing Act does NOT require precious metals to be marked with quality.
Big Skies Jewellery has the above Sterling Silver Onyx earrings plus other elegant sterling silver gemstone earrings in its online Etsy store, have a look here.
Is there something specific that you would like to know about handcrafted jewellery components or gemstones? Ask me, and I will see if I can help!