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GIA Diamond Pattern Comparison - youtube video

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Rough_Rock
Joined
Dec 16, 2017
Messages
38
Hello Everyone,

I did do a quick search to see if this question/ topic was asked before - but as i was looking at different diamond patterns on youtube, i came upon GIA's official channel.
In their video they state that the old european cut was around since the 1750s - This must be a mistake? What about the old mine cut?
I imagine that their use for "transitional brilliant" was changed to replace the old european cut?
The only transitional cut i can think of would be the old european transitional cut that's well loved on here.


thoughts?
 
Last edited:
I think they misspoke. Old mine cut were developed in the early 1700s. Old European Cuts followed the invention in 1874 and enentual sale/distribution of the steam powered bruting machine in the late 1800s. But, OMCs and OECs rubbed shoulders with OCC for decades.
 
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