1.When I told my GIA instructor that I could not get any spec reading on one particular stone, I was told not to worry about it. Some stones are not oriented in such a way to get a good reading. I had to rely on the other measurements. 2.You need the GIA refractometer FOR SURE. 3.I am also going to buy a LW-SW lamp. Just 'cause I've always wanted one.
Joined: Sat Sep 15, 2012 10:37 pm Posts: 73 Location: Oakland CA
I agree about the OPL spectroscope with stand-they're great! I ran across a used set on eBay but didn't win it. I did some research and ended up getting my set direct from the UK. They include the book for free. Even with the conversion from pounds sterling to $ I spent the same as buying the set from a US distributor.
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