August 24:—SAN ANTONIO, TEXAS: Retail show; Southwest Gem and Mineral Society of San Antonio; Sat. 10-5
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 Post subject: Color Change Sapphire Valuation
PostPosted: Thu Nov 01, 2012 3:04 pm 
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Joined: Sat Sep 22, 2012 2:30 pm
Posts: 58
I don't do much in the market so am not very aware of pricing/value unless I search what's currently being offered for sale...This gives such a wide range of pricing/value that it's relatively useless...

Here is what I'm asking about with AIGS Certs:

Umba Tanzania Color Change Sapphire 6-12ct Blue slightly to moderately included...Violet secondary color...NO heat...

Umba Color Change Sapphire 6ct-12ct Green slightly included....Red/pink as secondary color...NO heat...

Native cut so while some gems look quite nice a few are badly windowed but large size...9ct-12ct...The windowing is as much a product of the cutlet being far off center as it is being shallow...For my eyesight some appear eye clean but others at times debate that with me so I reference with a loup instead...Color tends to be dark blue or green but attractive...


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