Help understanding HCA for LG stone?
- Thread starter 101116
- Start date
anangel
Brilliant_Rock
- Joined
- Aug 1, 2008
- Messages
- 838
The functionality of the HCA does not change when calculating mined or lab grown diamonds.
Here are the “safe” stats that most PS members would recommend:
Table : 54 - 58
Depth : 60 - 62.3
Crown : 34 - 35
Pavillion: 40.6 - 40.9
Note.... with a shallow Crown Angle like 34 you want to pair that with a Pavillion Angle like 40.8 to 40.9 and vice versa a Crown with 35 you pair that with a Pavillion of 40.6
These angles are complimentary.
Feel free to post pics of your choices. We have some great members like @DejaWiz that love giving feedback and sharing their knowledge
Here are the “safe” stats that most PS members would recommend:
Table : 54 - 58
Depth : 60 - 62.3
Crown : 34 - 35
Pavillion: 40.6 - 40.9
Note.... with a shallow Crown Angle like 34 you want to pair that with a Pavillion Angle like 40.8 to 40.9 and vice versa a Crown with 35 you pair that with a Pavillion of 40.6
These angles are complimentary.
Feel free to post pics of your choices. We have some great members like @DejaWiz that love giving feedback and sharing their knowledge
This one scored the .5
www.jamesallen.com
This one scored a 1.5
www.jamesallen.com
Those are the two I had whittled it down to.
Lab-Created 1.55 Carat round diamond
This 1.55 carat Lab-Created round diamond E color vs1 clarity has Ideal proportions and a diamond grading report from IGI
www.jamesallen.com
This one scored a 1.5
Lab-Created 2.02 Carat round diamond
This 2.02 carat Lab-Created round diamond E color vs1 clarity has Ideal proportions and a diamond grading report from IGI
www.jamesallen.com
Those are the two I had whittled it down to.
- Joined
- Oct 6, 2005
- Messages
- 6,583
This one scored the .5
Lab-Created 1.55 Carat round diamond
This 1.55 carat Lab-Created round diamond E color vs1 clarity has Ideal proportions and a diamond grading report from IGI
This one scored a 1.5
Lab-Created 2.02 Carat round diamond
This 2.02 carat Lab-Created round diamond E color vs1 clarity has Ideal proportions and a diamond grading report from IGI
Those are the two I had whittled it down to.
I personally like to stick with 40.6-40.9 pavilion, as there can sometimes be obstruction issues below that.
Might I suggest this stone as an alternative to the 2.02? It's cheaper than the James Allen stone, has a GCAL 8x report, HPHT, with arguably perfect proportions.
Gem Certification & Assurance Lab
www.gcalusa.com
DejaWiz
Ideal_Rock
- Joined
- Apr 23, 2021
- Messages
- 6,067
This one scored the .5
Lab-Created 1.55 Carat round diamond
This 1.55 carat Lab-Created round diamond E color vs1 clarity has Ideal proportions and a diamond grading report from IGI
This one scored a 1.5
Lab-Created 2.02 Carat round diamond
This 2.02 carat Lab-Created round diamond E color vs1 clarity has Ideal proportions and a diamond grading report from IGI
Those are the two I had whittled it down to.
Hello, 101116!
$6k will get this validated performer with a GCAL 8X grading report:
Gem Certification & Assurance Lab
www.gcalusa.com
- Joined
- Oct 6, 2005
- Messages
- 6,583
In the 1.5 range, this stone is also cheaper than the 1.55 James Allen, with the same proportions.
www.gcalusa.com
Gem Certification & Assurance Lab
www.gcalusa.com
I personally like to stick with 40.6-40.9 pavilion, as there can sometimes be obstruction issues below that.
Might I suggest this stone as an alternative to the 2.02? It's cheaper than the James Allen stone, has a GCAL 8x report, HPHT, with arguably perfect proportions.
Gem Certification & Assurance Lab
$6k will get this validated performer with a GCAL 8X grading report:
Gem Certification & Assurance Lab
Ohhh... I like the 2.5! These are both lovely options! Thank you! I will have to check Adiamor's return policy. Thank you so much!
DejaWiz
Ideal_Rock
- Joined
- Apr 23, 2021
- Messages
- 6,067
Adiamor provides a 30 day return policy:
Easy 30 Day Returns and Full Money Back Guarantee | Adiamor
We at Adiamor believe in your complete satisfaction and will gladly refund, or exchange unworn items sent back in our facility within 30 days of shipping.
www.adiamor.com
- Joined
- Oct 6, 2005
- Messages
- 6,583
Two more E VS1.
www.gcalusa.com
34.5/40.8 proportions on this one.
www.gcalusa.com
Gem Certification & Assurance Lab
www.gcalusa.com
34.5/40.8 proportions on this one.
Gem Certification & Assurance Lab
www.gcalusa.com
Two more E VS1.
Gem Certification & Assurance Lab
34.5/40.8 proportions on this one.
Gem Certification & Assurance Lab
These are beautiful too! Thank you so much!
Adiamor provides a 30 day return policy:
Easy 30 Day Returns and Full Money Back Guarantee | Adiamor
We at Adiamor believe in your complete satisfaction and will gladly refund, or exchange unworn items sent back in our facility within 30 days of shipping.
Awesome, thank you!
DejaWiz
Ideal_Rock
- Joined
- Apr 23, 2021
- Messages
- 6,067
Awesome, thank you!
You're very welcome!
Please put that beautiful 2.50 on hold (as well as any others that made your short list) so that they don't get anonymously sniped.
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