- Joined
- Jun 29, 2019
- Messages
- 26
Right now in the market I can tell you that diamonds with a strong blue fluorescence are discounted alot because the majority of dealers don't want to buy them and put them in their inventoryMedium blue fluor, highly unlikely. Strong, more likely but still quite unlikely. Very strong, even more likely, but unlikely. There used to be a premium for these stones a very very long time ago until the market fell out back in the late 70s/early 80s (according to my research).
The GIA study as referenced above by @OoohShiny (while a little old now) is still highly relevant.
A really good example of strong blue fluor in a D stone is here (with the exception of that honker of a black crystal under the table!!).
https://www.briangavindiamonds.com/...1.093-d-vs2-round-diamond-ags-bl-104067973013