tankertoad
Rough_Rock
- Joined
- Nov 9, 2007
- Messages
- 14
First, get the background on our purchase here:
https://www.pricescope.com/community/threads/from-ignorant-to-purchase-eightstar-in-a-month.73550/
Paid off the ring and took delivery. The setting is a simple low profile six prong platinum tiffany style head integrated into a platinum shank. It''s absolutely gorgeous and my wife is ecstatic (she can''t stop looking at it and neither can I). The broad rainbow flashes are there as well as the brilliant glow in low light. What I didn''t notice before is how, when there is almost no light, it has the quality of a deep piece of clear ice, giving it an additional sense of visual "heft". The low head setting is nice as well. It looks larger than its carat weight would indicate and is perfectly proportioned to my wife''s finger. Her original wedding band is white gold and has been Rhodium plated to match the platinum exactly. We dealt with Brenda Newman, owner of "The Jewelry Source" in El Segundo, CA and she''s been wonderful.
OK, now for the right brain. I thought I asked for a Sarin report but didn''t get one and don''t really care anymore. The numbers have taken a backseat to the visual performance of the stone. It came with a GIA cert but I had it sent in and updated and sent to AGS and well (I thought about GCAL instead but didn''t know much about them). Here''s the data (pardon the formatting)"
Orig GIA New GIA AGS
Carat 1.64 1.64 1.642
Diam. 7.63x7.64 7.63x7.66 7.62x7.64
Depth 4.67mm 4.66mm 4.67mm
Color J J I
Clarity SI1 SI1 SI1
Polish VG - -
Symmetry EX - -
Fluor. Faint Faint Negligible
Tot Depth 61.2% 61.0% 61.2%
Table 54% 54% 54.0%
Crown Ang - 34.5 deg 34.5 deg.
Crown Ht - 16.0% 15.8%
Pav Ang - 40.8 deg 40.7 Deg
Pav Depth - 43.0% 42.9%
Star Length - 45% 48%
Lower 1/2 - 75% 76%
Girdle Med Med (2.4%) 1.6-4.6%
Culet None Very Small Very Small
Cut Grade - Good 2 (Very Good)
Comment - "cut grade affected -
by brillianteering"
HCA Value 1.2 1.0
Light Return EX EX
Fire EX EX
Scintillation EX EX
Spread VG VG
AGS Cut Grade Details -
Deductions:
Brightness - 0
Contrast - 0
Dispersion - 0.3250
Leakage - 0
Weight Ratio - 0
Tilt - 0
Durability - 0
Sum - 0.3250
Net Lowering:
Girdle - 0
Culet - 0
Polish - 2
Symmetry - 1
Largest - 2.0000
There you have it. If anyone wants to plug the data into whatever other program you have (DiamCalc, etc.), let me know what you get. And, if someone can point me to a primer on what the AGS cut values mean, I''d appreciate it.
As you can see, there are slight variations among reports (except for the color disparity) and the HCA is a tool only and not always accurate on what will score well on cut grades. The "two from the top" cut grades assigned by both labs wasn''t a total surprise as Gary H. warned of the brillianteering aspect when dealing with Eightstars.
Bottom line, the numbers are fun and useful when separating the good stuff from the junk but don''t get too wrapped up in them. To my wife and I , the cut is perfect and, in the end, that''s all that matters.
Once I figure out how to improve the macro performance on my digital camera, I''ll post pictures of this carbon wonder.
https://www.pricescope.com/community/threads/from-ignorant-to-purchase-eightstar-in-a-month.73550/
Paid off the ring and took delivery. The setting is a simple low profile six prong platinum tiffany style head integrated into a platinum shank. It''s absolutely gorgeous and my wife is ecstatic (she can''t stop looking at it and neither can I). The broad rainbow flashes are there as well as the brilliant glow in low light. What I didn''t notice before is how, when there is almost no light, it has the quality of a deep piece of clear ice, giving it an additional sense of visual "heft". The low head setting is nice as well. It looks larger than its carat weight would indicate and is perfectly proportioned to my wife''s finger. Her original wedding band is white gold and has been Rhodium plated to match the platinum exactly. We dealt with Brenda Newman, owner of "The Jewelry Source" in El Segundo, CA and she''s been wonderful.
OK, now for the right brain. I thought I asked for a Sarin report but didn''t get one and don''t really care anymore. The numbers have taken a backseat to the visual performance of the stone. It came with a GIA cert but I had it sent in and updated and sent to AGS and well (I thought about GCAL instead but didn''t know much about them). Here''s the data (pardon the formatting)"
Orig GIA New GIA AGS
Carat 1.64 1.64 1.642
Diam. 7.63x7.64 7.63x7.66 7.62x7.64
Depth 4.67mm 4.66mm 4.67mm
Color J J I
Clarity SI1 SI1 SI1
Polish VG - -
Symmetry EX - -
Fluor. Faint Faint Negligible
Tot Depth 61.2% 61.0% 61.2%
Table 54% 54% 54.0%
Crown Ang - 34.5 deg 34.5 deg.
Crown Ht - 16.0% 15.8%
Pav Ang - 40.8 deg 40.7 Deg
Pav Depth - 43.0% 42.9%
Star Length - 45% 48%
Lower 1/2 - 75% 76%
Girdle Med Med (2.4%) 1.6-4.6%
Culet None Very Small Very Small
Cut Grade - Good 2 (Very Good)
Comment - "cut grade affected -
by brillianteering"
HCA Value 1.2 1.0
Light Return EX EX
Fire EX EX
Scintillation EX EX
Spread VG VG
AGS Cut Grade Details -
Deductions:
Brightness - 0
Contrast - 0
Dispersion - 0.3250
Leakage - 0
Weight Ratio - 0
Tilt - 0
Durability - 0
Sum - 0.3250
Net Lowering:
Girdle - 0
Culet - 0
Polish - 2
Symmetry - 1
Largest - 2.0000
There you have it. If anyone wants to plug the data into whatever other program you have (DiamCalc, etc.), let me know what you get. And, if someone can point me to a primer on what the AGS cut values mean, I''d appreciate it.
As you can see, there are slight variations among reports (except for the color disparity) and the HCA is a tool only and not always accurate on what will score well on cut grades. The "two from the top" cut grades assigned by both labs wasn''t a total surprise as Gary H. warned of the brillianteering aspect when dealing with Eightstars.
Bottom line, the numbers are fun and useful when separating the good stuff from the junk but don''t get too wrapped up in them. To my wife and I , the cut is perfect and, in the end, that''s all that matters.
Once I figure out how to improve the macro performance on my digital camera, I''ll post pictures of this carbon wonder.
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