Diamonds

Last week, we sent two GIA certified stones to the AGS lab. The reason being was that the GIA both gave them a “very good” cut grade, despite them being what we thought top stones deserving of a higher cut grade.

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One of the things I’ve always wondered was how popular certain shapes of diamonds really are. So, I decided to gather statistics from our diamond search and see how many searches were performed on each shape.

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A few weeks ago, we sent seven stones to the GIA in Carlsbad for certification. Six had our own “Jogia Grading System” certificates and one had a DCLA certificate.

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In May, we wrote about the square hearts and arrows cut that we are now stocking. Since then, we’ve showed it to numerous people (funnily enough, mostly in the trade) who have all been amazed at the brilliance and sparkle of the Square Hearts and Arrows cut. (more…)

Correct me if I’m wrong, but no Australian diamond grading lab lists either the star length or lower half length on their certificates - something that both the GIA and AGS do on round brilliants.

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Despite being incredibly hard, diamonds are brittle, and every so often, a setter (or a jeweller) chips one. Sometimes it’s no problem, like when the stone is only small, and can be replaced with another from the parcel of hundreds of melee. Other times it’s a total headache…

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Today we received two 2ct+ diamonds. Whilst both were very nice, one was remarkable, that is, worthy of a remark, or in this case a blog.

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On Monday, we received our first square hearts and arrows cut diamond. It’s just under a carat (0.87ct) and an F/VS1, with excellent polish and symmetry, as graded by the GIA.

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Last week, we got an emerald cut in for a client. Although I’m not a huge fan of emerald cuts, as they’re not as bright as brilliant cuts, this one looked nice due to it’s excellent symmetry and seemingly good light return.

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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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