I'm wondering about another piece of jewelry it's a garage sale find about a half inch across set in a mirrored silver setting and cut like an emerald or a prism. How long has cubic zirconia been around? This is from the 30's or 1940's. I was able to make a big scratch on a pane of glass with it and diamonds can cut glass but so can quartz.Could a lead crystal cut glass?

twinkiedooter

No lead crystal cannot cut glass as it is not hard enough. Zircons have been around a long time. Would suggest you take this piece to a jeweler and ask them what this could be. I used to make jeweley (in Fla) and spent many happy hours at the Diamond Exchange in NYC on my lunchhours years ago.

wildandblue

I already tried that but they gave me the bum's rush like I'd stolen it or something. I don't want to sell it--just know if it's anything nice or just old costume jewelry.

aydeljen

Forms of CZ's have been around for years. The 1930's and 1940's were an ara of wonderful costume jewelry. Odds are the stone is a white sapphire because of the ablility to scratch glass. I would take it to another jeweler to get their opion.

I am not GIA certified but have worked for two private jewelers for the last five years.

Sounds like you have made a good find!

kums578

give me the details about dimand stones like emerald ruby nilam topaz