I have been doing reserach for a diamond for the last two months. Unfortunately, I was depending heavily on Fred Cuellar''s book. Upon giving the details of what I wanted to a local diamond broker in town, they found two different stones. Both of these were dismissed as "warped" when I corresponded with the Diamond Guy.
Here is my last correspondence with him:
Q OK Fred, here we go. A follow-up to my last post. We have a new diamond to consider (beautiful!!). The readings are reportedly from a Sarin. 3.03 carat, E, VS1, Diam = 9.44-9.48,T Depth=60.6%, Crown Angle = 33.8 deg (33.5 - 34.3), Crown Height = 15.2% (14.9-15.6), Pavil Angle=40.4 deg (40.4-40.5),Pav Depth=42.3% (41.8-42.4), Culet=0.1%, Table Size=54.3% (53.8-54.
,Girdle=1.4% (1.0-1.7). GIA cert states EX polish, EX symmetry, Fluorescence=NONE A few questions: 1) Is this a Class I diamond? The min Crown angle (while OK to your specs) is below 34 degrees. Pav depth below 42.52%. The AGS guidelines (given by broker) show all AGS 0. 2) Girdle Thickness and Warping - Girdle is as stated above but picture included showed girdle measurement as 2.8%. If I do warp calc with 1.4%, we are shy. If we use 2.8%, we are OK. Is the girdle thickness halved or doubled? Why the difference between sarin calc and sarin picture? 3) Cost - $77,400. If I use your cost charts, this is roughly equal to cost indicated plus 15% (as indicated for a class I diamond). Good deal given above? or not class I and overpriced. Thanks, by the way, for sending your 5th edition. I appreciate it. KLM
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A Hi Kevin, Q1. No. Q2. Remember total depth percentage should equal crown height plus maximum girdle thickness percentage plus pavilion depth percentage within .5%. Here I have 15.6 + 1.7 + 42.4 = 59.7 which is .9% away from total depth of 60.6%. So it’s warped. Based on that info, a fair price to pay for this diamond is $50,449.50. The Diamond Guy Helper
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Need less to say that I will not be depending on his advice going forward. Note the discussion on the girdle that is covered in your girdle part of the tutorial.
OK - so a few questions for this forum:
1) For this diamond, what should I be worrying about to ensure that the price is accurate? I have two "different" Sarin reports that this as AGS 0. Is this enough? Is this ideal?
2) THe HCA shows 0.7% but ""spread" is only "very good" not "excellent". Is this a concern?
3) Is the price correct for these specs?
I am WIDE OPEN to advice on this stone - it is a large purchase - she is a special girl. My diamond borker searched high and low for this (2-3 others rejected) and has it out for showing to me at this point. Forgetting all of these numbers (I am an engineer so that numbers are important), it is a gorgeous stone. I have GIA cert and Sarin reports.
Thanks in advance for any advice.
KLM
Here is my last correspondence with him:
Q OK Fred, here we go. A follow-up to my last post. We have a new diamond to consider (beautiful!!). The readings are reportedly from a Sarin. 3.03 carat, E, VS1, Diam = 9.44-9.48,T Depth=60.6%, Crown Angle = 33.8 deg (33.5 - 34.3), Crown Height = 15.2% (14.9-15.6), Pavil Angle=40.4 deg (40.4-40.5),Pav Depth=42.3% (41.8-42.4), Culet=0.1%, Table Size=54.3% (53.8-54.
,Girdle=1.4% (1.0-1.7). GIA cert states EX polish, EX symmetry, Fluorescence=NONE A few questions: 1) Is this a Class I diamond? The min Crown angle (while OK to your specs) is below 34 degrees. Pav depth below 42.52%. The AGS guidelines (given by broker) show all AGS 0. 2) Girdle Thickness and Warping - Girdle is as stated above but picture included showed girdle measurement as 2.8%. If I do warp calc with 1.4%, we are shy. If we use 2.8%, we are OK. Is the girdle thickness halved or doubled? Why the difference between sarin calc and sarin picture? 3) Cost - $77,400. If I use your cost charts, this is roughly equal to cost indicated plus 15% (as indicated for a class I diamond). Good deal given above? or not class I and overpriced. Thanks, by the way, for sending your 5th edition. I appreciate it. KLM --------------------------------------------------------------------------------
A Hi Kevin, Q1. No. Q2. Remember total depth percentage should equal crown height plus maximum girdle thickness percentage plus pavilion depth percentage within .5%. Here I have 15.6 + 1.7 + 42.4 = 59.7 which is .9% away from total depth of 60.6%. So it’s warped. Based on that info, a fair price to pay for this diamond is $50,449.50. The Diamond Guy Helper
-----------------------------------------
Need less to say that I will not be depending on his advice going forward. Note the discussion on the girdle that is covered in your girdle part of the tutorial.
OK - so a few questions for this forum:
1) For this diamond, what should I be worrying about to ensure that the price is accurate? I have two "different" Sarin reports that this as AGS 0. Is this enough? Is this ideal?
2) THe HCA shows 0.7% but ""spread" is only "very good" not "excellent". Is this a concern?
3) Is the price correct for these specs?
I am WIDE OPEN to advice on this stone - it is a large purchase - she is a special girl. My diamond borker searched high and low for this (2-3 others rejected) and has it out for showing to me at this point. Forgetting all of these numbers (I am an engineer so that numbers are important), it is a gorgeous stone. I have GIA cert and Sarin reports.
Thanks in advance for any advice.
KLM
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