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Depth and Table %

P: 6/21/2003 12:28:28 PM
scarecrow Rough Rock Total Posts: 5 Last Post: 6/21/2003 Member Since: 6/18/2003	I am confused in trying to purchase a princess cut diamond. My home jeweler states the table % should be higher than the depth percentage %. Is this true? Are there optimal percentages for depth and table? Should the table be less than the depth? Any expertise provided will be greatly appreciated. Thanks for helping. scarecrow
Posted: 6/21/2003 12:28:28 PM

There are 6 replies to this message. There are 6 replies on this page.

P: 6/21/2003 1:23:19 PM
Pricescope Administrator Total Posts: 8,265 Last Post: 1/5/2008 Member Since: 1/1/2000	Scarecrow, Take a look at the tutorial and particularly at 60:60 page. The point is that table and depth alone cannot guarantee ideal cut. You should know crown and pavilion angles as well. Pricescope
Posted: 6/21/2003 1:23:19 PM

P: 6/21/2003 3:09:02 PM
Giangi Ideal Rock Total Posts: 2,530 Last Post: 10/29/2006 Member Since: 1/23/2003	Leonid...Good suggestion, but he's talking about princesses... To judge a princess cut properly you should know talbe, depth, crown, pavilion, girdle and culet, as well as additional tests as BrillianceScope, Ideal Scope, light leakage images... _____________ Omnia Mea Mecum Porto. Giangi
Posted: 6/21/2003 3:09:02 PM

P: 6/21/2003 11:43:09 PM
Scoop Rough Rock Total Posts: 9 Last Post: 7/22/2003 Member Since: 6/18/2003	Can I feel comfortable by relying solely upon the cut grading form from www.gemappraisers.com ?? I ask only because this tool doesn't reference pavilion angles. Thanks. Scoop
Posted: 6/21/2003 11:43:09 PM

P: 6/22/2003 8:16:20 AM
Richard Sherwood Ideal Rock Total Posts: 4,879 Last Post: 11/23/2009 Member Since: 9/25/2002	Scoop, those charts will get you in the right ballpark. Then you can narrow it down considerably by viewing Idealscope photos of the contendors (or view them personally with an Idealscope). The poor performers will be immediately obvious. Some of the vendors include Idealscope photos in their descriptions of the stones. Scarecrow, your jeweler's got it reversed. The stones which have the same or greater depth % than table % are usually the better performers. Rich, Independent GG Appraiser Sarasota Gemological Laboratory
Posted: 6/22/2003 8:16:20 AM

P: 6/22/2003 8:37:51 AM
Pricescope Administrator Total Posts: 8,265 Last Post: 1/5/2008 Member Since: 1/1/2000	Giangi, ---------------- Leonid...Good suggestion, but he's talking about princesses... ---------------- Doh! Thanks, Giangi I was reading too fast... You and Richard straightened it out good. Pricescope
Posted: 6/22/2003 8:37:51 AM

P: 6/22/2003 8:43:51 AM
barry Cut Rock Total Posts: 440 Last Post: 12/1/2003 Member Since: 3/22/2001	Table % should NOT exceed Depth % in Princess Cuts for two reasons: 1. Crown height will be minimized; crown height is a critical component in maximizing light output. 2. Pavillion angle wil usually be in the low 50's% which results in light leakage. Giangi and Richard Sherwood are giving you very good advice. "Numbers" are good but peformance indicators such as light leakage images, BrillianceScopes and digital photo's are better and will give you valuable information. Barry www.superbcert.com
Posted: 6/22/2003 8:43:51 AM

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