Confused on the Percentages

[caolsen]

So I got a lovely 2.63 Carat Pear with side stones in Platnium for my 10th Wedding Anniversary. (Posted Pics a few weeks ago in this Forum) And I love it, but I am a bit confused on the numbers. I just got the full appraisial and plot back. It is buy a trusted jewler who is a GIA Graduate Gemologist with 25 years experience.

The ring was from their estate case. They bought it from a VIP client of 50 years who was selling the bulk of her gems to raise money for a charity. I was one of the luck ones who got to see the collection and buy at great savings. The seller was motivated by making money for the charity and getting the rocks in the hands of people who would really appreciate them So I have her E-Ring now.

I got the full appraisail and plot back and the numbers are all over the place. He, the GIA Gemologist, said this is commom in an older cut pear stone. This stone was cut in the late 40's or early 50's. Based on that cutting time line, he said the percentages would be very different from a moden cut pear.

Here are the numbers

VVS2
Color L
Measurements: 13.30x7.61X4.48 MM
Carats: 2.63
Depth: 58.8%
Table: 65.9%
Crown Height (Two readings) 11.4% and 10.5%
Crown Angles (Two readings) 35.2% 33.7%
Pacillion (Two readings) 45.2% and 45.1%
Girdle: Very Thin to Medium, bruted (Yikes, I know. But is had survived 50 years already and I am careful!)
Culet: Small
Symmetry: Very good
Polish: Very good
Length/width: 1.75 to 1

The thing faces very white and has a ton a fire for the table size. I really like the ring so no regrets, but these dimensions seem (*from what I have read of PS*) all over the place. Is that more common in a rock cut before computer/laser aided cutting and rough plotting?

Thanks!

 

[Karl_K]

which machine was used to measure it?

Even the top end sarin will show minor variations with a pear and the low end one will be all over the map.
If it was ogi then forget it.

But the bottom line is if you love it what do the numbers matter in this case?

 

[caolsen]

I do love it...just trying to learn more about what the numbers mean in relation to the real thing. This is the first stone of this size I have had where I could justify the expense of a full plot and seperated insurance versus the general homeoweners rider.

I have ridden horses my entire life and sometimes you know a horse looks good or feels good whilst ridden, but it is still good to understand the biomechincal confimation that allows the horse to do what it does, for the good or the bad. Sometimes a horse that looks like it should ride really nicely, feels like a bucket of crap and vice versa.

The tools used on the apprasial say:
Gem Laboratory Microscope, Mark VIII Gemolite 10X-70x
Rubin 10X loupe, 20,5 MM
Leveridge Guage
Phaus c301p electronic scale
Master diamond color grading set
Millimete Guage
Fiber Optic
Ultraviolet Light (LM/SW)
Table Guage

I should have said in the first post, the center stone has NO Floursencese.

Merci...