is this an odd for an ideal cut.? look at the pavil angle..

[Dancing Fire]

the lazare kaplain ideal, crown angle 33.7-35.8 and the pavil angle 42.2-43.8

 

[DiamondExpert]

Sure that's not pavilion depth %?

 

[Dancing Fire]

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On 6/19/2004 10:03:41 PM DiamondExpert wrote:

Sure that's not pavilion depth %?
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Gary
I just look again pav 42.2-43.8,the pav depth for their ideal is 43%,the crown looks like same as ags range,imagine the hca score if you use these pavil angle

 

[aljdewey]

V..........which is it? In your first post, you say it's 43 *degrees* (angle), and in the second post you say it's 43%.




As Gary noted, I'm fairly certain the crown measurement is expressed in degrees (angle), but the pavilion measurement is expressed in percent (depth).

 

[Dancing Fire]

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On 6/22/2004 6:39:53 AM aljdewey wrote:


V..........which is it? In your first post, you say it's 43 *degrees* (angle), and in the second post you say it's 43%.


As Gary noted, I'm fairly certain the crown measurement is expressed in degrees (angle), but the pavilion measurement is expressed in percent (depth).


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Aljdewey

Here's the lazare kaplan ideal cut information from Grebitus & Son jewelry (printed on their brochure)

table 52.4-57.5%
crown angle 33.7-35.8 height 16%
pavil angle 42.2-43.8 depth 43%

 

[aljdewey]

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On 6/22/2004 6:39:22 PM vtigger86 wrote:

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On 6/22/2004 6:39:53 AM aljdewey wrote:








V..........which is it? In your first post, you say it's 43 *degrees* (angle), and in the second post you say it's 43%.






As Gary noted, I'm fairly certain the crown measurement is expressed in degrees (angle), but the pavilion measurement is expressed in percent (depth).






----------------

Aljdewey

Here's the lazare kaplan ideal cut information from Grebitus & Son jewelry (printed on their brochure)

table 52.4-57.5%
crown angle 33.7-35.8 height 16%
pavil angle 42.2-43.8 depth 43%

----------------

the 42.2-43.8 is percent, not angles, and is a reference to the AGS 0 measurements benchmark.

 

[aljdewey]

Here is the graphic that illustrates it......the 42.2-43.8 is a percentage.....the corresponding crown angles would be 40.5 to 41.5 in degrees (angle) as shown on the left.

 

[Dancing Fire]

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On 6/22/2004 11:15:16 PM aljdewey wrote:


Here is the graphic that illustrates it......the 42.2-43.8 is a percentage.....the corresponding crown angles would be 40.5 to 41.5 in degrees (angle) as shown on the left.
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al,

were your chart shows the pavil depth, all it show is approxmently 43%. on the left of your chart where it shows pavil angle, it shows 42.2-43.8 (maybe it's a misprint ?). the salesmen showed me a loose 1.19 ct E SI 2 for $7900 that was really impressive. wow, what a fireball,he also showed me the sarin report but i forgot the proportion # s,they had (10) other Lazare Kaplan in the showcase that looks like duds compared to the SI 2 stone.

 

[aljdewey]

vtigger, it must totally be a misprint then by the jeweler. Someone should point it out to them.