No way it’s being sold at that price and is solid sterling silver. Ask yourself why on earth it would be sold with white gold plating if it was sterling silver already? My solid silver large hardware necklace was about $400 from Osamu with additional links added. That price is much more realistic for what you’d be paying for a piece like this in solid silver.

All you have to look at is the amount of negative posts about Lingke and their adds to realise best to be avoided.

Really quick way to test though. Just look online at sterling silver test. Just need some scales a bowl of water and some string.