Heat treat zircon and sapphire service?

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I have some zircon and sapphire that is a bit cloudy but may come up ok if heat treated.

Unsure of where to find this service for a small quantity. pic attached, 3 larger zircons in center are 8.8ct, 6.7ct and 5ct for reference
1559186420_icomp1559186266791.jpg
 
Thanks grubstake. Some nice parti stones which will come up nice if i can clean them up a bit.
 
Hi Gaz,
As Dihusky said above. I have just had a sapphire heat treated by Peter at the Rubyvale Gem Gallery and collected it today. Unfortunately my brother sent me a lousy photo but there was no question that the stone ended up lighter and clearer.
You can google their contact details and find out the dates of when they are doing their heat treatment in their contact us option or you can call them.
Cost is $1/carat. They treat every two weeks and it takes about three days. You can post to them and have return post if you want.
Marty
 

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