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Need weight estimation formulas for Sapphires!

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Nicrez

Ideal_Rock
Joined
Jan 21, 2004
Messages
3,230
Ack! I have the dimensions of a stone, but need to know total carat weight...help! i only remember diamond''s estimations...

Measurements are: 18.20 x 10.21 x 9.59 mm
 

Kismet

Ideal_Rock
Joined
May 6, 2005
Messages
2,991
This web site is roughly accurate, or at least it was accurate for the few stones I input.
 

MustangFan

Brilliant_Rock
Joined
Feb 27, 2006
Messages
935
Cool site!

I put in the dimensions for my sapphire and it was about .14 ct off, not bad!
 

Nicrez

Ideal_Rock
Joined
Jan 21, 2004
Messages
3,230
Thanks Kismet! This will totally help for weight estimations from here on in. I am so lazy to root through my stuff in storage for my old GIA formulas, and even then this is FAR better than doing so much math!
 
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