I have searched on the web, but cannot seem to find a good answer to this question. For those people shopping for a "bang for the buck" diamond (which was me 3 years ago), looking for high level light performance but without the premium price tag, this info would be very helpful. What is the range of "AGS Ideal" light performance? Obviously, we have the super ideals, and behind that, an entire range of "ideal" from "near super ideal" to "barely ideal". But overall, what constitutes "ideal"? For example, say a perfectly cut diamond, by the best cutter in the world, with state of the art tooling, returned 100% of light that is available to return (i.e. it is not possible to improve on the cut quality). This rates a score of 100.
On the other end, a very poorly cut diamond from a pawn shop or low-end jewelry store returns, say 40% of available light. We rate this a 40.
In between, what is the range of "AGS Ideal light performance" and what is "super ideal". 100 to 99.7% of available light, and 99.7-96% for AGS Ideal? More, less? I have posted an AGS cert
I have posted a cert of an AGS ideal stone that seems like it may be toward the lower end of the spectrum. How would light return rate against "the best of the best"? I saw this one when pendant shopping.
On the other end, a very poorly cut diamond from a pawn shop or low-end jewelry store returns, say 40% of available light. We rate this a 40.
In between, what is the range of "AGS Ideal light performance" and what is "super ideal". 100 to 99.7% of available light, and 99.7-96% for AGS Ideal? More, less? I have posted an AGS cert
I have posted a cert of an AGS ideal stone that seems like it may be toward the lower end of the spectrum. How would light return rate against "the best of the best"? I saw this one when pendant shopping.
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