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Brilliance Scope vs HCA question

P: 5/20/2002 5:01:57 AM
Bingo Rough Rock Total Posts: 11 Last Post: 3/6/2003 Member Since: 4/26/2002	Can anyone out there tell me how the results on these two measures of cut compare? If I see a diamond that performs really well on the HCA (say 0.5 or less) with "Excellent" across the board, does that imply that it will be show up towards the VH end of the Brilliance Scope scales? Are the two techniques comparable? It seems much easier to get data to perform HCA analysis, and obviously not everyone has access to a Brilliance Scope, though it seems a useful tool. Many thanks
Posted: 5/20/2002 5:01:57 AM

There are 2 replies to this message. There are 2 replies on this page.

P: 5/20/2002 6:45:36 AM
Garry H (Cut Nut) Ideal Rock Total Posts: 11,582 Last Post: 11/24/2009 Member Since: 8/16/2000	The top grey tool bar has a search section. You will find many discussions on Brilliancescope that include HCA. Pleas try that first. Garry Holloway FGAA DipDT HCA and Ideal-scope developer http://www.ideal-scope.com and http://www.HollowayDiamonds.com.au
Posted: 5/20/2002 6:45:36 AM

P: 5/20/2002 6:53:59 AM
Pricescope Administrator Total Posts: 8,265 Last Post: 1/5/2008 Member Since: 1/1/2000	Hi Bingo, Some times there is correlation between HCA and Brilliancescope results but sometimes not. These are different methods. HCA is a system of penalties to eliminate poor performance (see Developing the Cut Adviser system. Once diamonds score less than 2, you have to see the diamonds yourself to find the best looking one. Lower HCA score doesn't guarantee higher BS results. Some very beautiful stones do not score the highest with BS while you can get high BS result with a diamond without crown. Check out previous threads on this question: BrillianceScope Results Holloway Cut Advisor ...questions For those who like riddles 6 weeks and still a bit confused about cut HCA vs. BrillianceScope HCA- that thing actually works! -& why GoodOldGold rocks Pricescope
Posted: 5/20/2002 6:53:59 AM

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