Jogia Diamonds' Blog

Amongst the myriad of light performance tools and software, one of the least talked about is the AGS Performance Grading Software (PGS), which allows an AGS cut grade to be assigned to any round, princess or emerald (square or rectangular) cut diamond, without the need an AGS certificate!
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Quite often the question arises as to if our engagement rings and earrings come with a valuation, as these are particularly useful for insurance. Read the rest of this entry »

Around this time last year, we made a video of our lab and office. Since then, quite a few things have changed.
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Occasionally we get asked if we can match a price or give a better deal on a diamond because someone has seen what seems to be a similar diamond somewhere else or on another website.
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I’m sure most people would think twice about buying a diamond (or two) from a stranger in a McDonald’s.
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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).
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Recently, we brought in two D colour Asscher cut diamonds for a couple of clients.
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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.
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One of the perils of selling jewellery online is that at some point in time, the customer will need the ring resized, polished, claws tightened and so on. A ring, like a car, isn’t maintenance free. So, they will take it to a local jeweller, who will use the opportunity to try and drum up some business and badmouth online jewellers.
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In Ideal-Scope images of round brilliant cut diamonds, it’s common to see 8 black arrows amongst a sea of red.
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