good question. and don''t forget extinction and windowing.Date: 2/7/2009 8:15:16 AM
Price per carat depends on the carat weight. The larger the stone, the more $/carat it is.
What do you consider medium quality? Are you familiar with the GIA grading? It would help if we followed the same colour standard as a starting point.
Yes, there is no question that any fine unheated blue sapphire or ruby will well outprice a red spinel of equal quality, hence I believe spinels are underrated.Date: 2/8/2009 3:26:05 AM
I think... all things considered... a fine blue sapphire will still outprice a fine red spinel any day of the week. And... of course a certified Kashmir origin will blow ANY spinel of ''equal'' quality out of the water ANY day of the week...