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To: Gauguin who wrote (31120)7/7/1999 11:09:00 AM
From: Ilaine  Read Replies (1) | Respond to of 71178
 
"Real" cobalt blue glass is a true blue, but slightly on the violet side of blue. Copycat cobalt blue glass is a teench on the turquoise side. Real cobalt blue doesn't have any turquoise shade to it.

I have a similar problem. You won't be surprised to learn that I also have various things made out of lapis lazuli. It's easy for me to tell lapis from sodalite, but I have a hard time telling which shade of lapis looks more "real" to me, true blue, or with a teench of violet. I like to go to gem shows, and you can see everything from dyed howlite calling itself lapis, to something that's clearly got a lot of sodalite in it, to something that's almost, but not quite, violet. I've got a bag full of different size lapis cabochons, one of these days I'll either learn to set it in gold, or break down and pay someone to do it.

The prettiest pieces, to me, are the ones that are almost violet, but I've been told that the most "desireable" pieces have silver inclusions, and I've never seen that with the blue-violet stones, which are pretty much uniform in color. The best prices come direct from the Afghanis, but the most honest dealers tend to be Americans. There is one American dealer I bought a string of polished lapis discs from, and he said that the blue-violet ones were the most desireable. So I remain confused.