The OGI Firetrace software is software that predicts the light performance of a diamond using its proportions. Whilst this method isn’t new (DiamCalc, AGS), both OGI and Sarin have “consumer-friendly” (and “dealer-friendly” 
) versions hat show brightness (white light), dispersion (coloured light) and scintillation (play of light on the surface of the diamond).
Recently, we brought in two D colour Asscher cut diamonds for a couple of clients.
Out of the most respected labs in the world, no lab apart from the AGS gives princess cuts a cut grade. Therefore, for the most part, consumers usually are left in the dark about the true cut grade of princess cuts. Whilst some dealers may go merely by table and depth percentages, and others by crown height, these numbers alone aren’t the best indicators of a superior princess cut.
In Ideal-Scope images of round brilliant cut diamonds, it’s common to see 8 black arrows amongst a sea of red.
Yesterday, news broke that an 8000+ carat gemstone was found by a South African property developer.
When most people compare GIA to AGS certificates, they immediately think about the grading - that is, the differences in how they grade colour, clarity and cut.
The recently patented Holloway Cut Adviser (HCA) is an online tool that helps consumers determines the cut of a diamond. It is simple and free, but not without it’s flaws.
Although they may rate 10 (the hardest) on the Moh’s scale, it doesn’t mean that diamonds won’t break.
When grading diamonds, proper tools such as proportion analysers to determine cut and master stones or a colorimeter to determine colour should be used.
Readers of this blog may think that we are the world’s number 1 Ideal-Scope fans. To counter-act such claims, we’ve made this list of top 10 reasons why the Ideal-Scope sucks.
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