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ť what should diameter be?

what should diameter be?

P: 1/29/2007 6:00:46 AM
Margarw Rough Rock Total Posts: 44 Last Post: 3/2/2008 Member Since: 1/12/2007	i tired the diamond calc, but can't get it to work properly. can someone help me with what the diameter for a well cut 1.27 round should be? Thanks!
Posted: 1/29/2007 6:00:46 AM

There are 5 replies to this message. There are 5 replies on this page.

P: 1/29/2007 6:05:28 AM
JulieN Ideal Rock Total Posts: 7,148 Last Post: 11/23/2009 Member Since: 7/25/2005	6.9-7.1 ?
Posted: 1/29/2007 6:05:28 AM

P: 1/29/2007 10:53:59 AM
Finding_Neverland Cut Rock Total Posts: 412 Last Post: 7/3/2007 Member Since: 1/10/2007	From what I've read, somewhere around 7mm, give or take, for a well cut round. _________________________ You find a glimmer of happiness in this world, there is always someone who's going to destroy it.
Posted: 1/29/2007 10:53:59 AM

P: 1/29/2007 12:21:45 PM
starryeyed Ideal Rock Total Posts: 1,587 Last Post: 10/5/2009 Member Since: 11/6/2006	I concur, around 7mm. You can use this formula: diameter x diameter x depth x 0.0061 = carat weight You can assume a depth percentage, for example: depth = 0.593 x diameter. This is the Tolkowsky depth. Substituting and solving for 1.27 carats: (diameter)^3 = 1.27/(0.0061 * 0.593) = 351.09 diameter = (351.09)^0.3333 = 7.05 mm So you could run this calc for different depth percentages, but my guess is they would have to be approx. within the "ideal range". Does this make sense?
Posted: 1/29/2007 12:21:45 PM

P: 1/30/2007 12:47:23 AM
:) Ideal Rock Total Posts: 1,864 Last Post: 6/1/2009 Member Since: 7/25/2006	Try this for a quick.. http://www.pricescope.com/idealbb/view.asp?topicID=17578
Posted: 1/30/2007 12:47:23 AM

P: 1/30/2007 1:02:23 AM
ILikeBond Cut Rock Total Posts: 298 Last Post: 1/5/2009 Member Since: 11/20/2006	Mine's 6.99 x 6.95 (x 4.31).
Posted: 1/30/2007 1:02:23 AM

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