“ Please note that we will ship you same stone or 
exact similar stone with same color, clarity & same carat weight certified stone. 
 All Our Diamonds Are Certified And Laser IN scripted.
all of our diamonds are tested and certified with labs like IGI, GIA ,Etc.

Lab
IGI
Report #
-
Shape
Radiant
Carat
1.56
Color
H
Clarity
SI2
Cut
-
Polish
Excellent
Sym
Excellent
Fluor
None
Location
New York, United States
Depth
65.5%
Table
61%
Girdle
Medium
Crown
14.0%, 37.9°
Pavillion
49.0%, 33.5°
Culet
None
Meas
8.77 x 5.66 x 3.71
Ratio
1.55
BGM
None
Growth Type
CVD
Please note that we are listing all of our stone's color & clarity grade as per IGI Lab Report. IGI Lab is the 2nd most reputable & trustworthy Lab after GIA. Every person can have a different opinion about the color & clarity of the stone. So the stones you are getting can be one or two grades lower in color & clarity grade as per GIA standards but as IGI standards those are as mentioned in the listing. 
I am not sure how practical it is to use $75000 (3 Carat E VS!) Natural Diamond stone standard for the same color & clarity grade (3 Carat EVS1) Lab Grown Stone which you are getting for $750. My advice to you is whatever ebay authenticity says please please get the stone & if you do not like then I will accept the return without any question in the next 30 days of purchase. I don't want you to miss the great opportunity to buy those beautiful lab grown stones which are 100% the same chemical & other properties wise as natural Diamonds at 1% of price compared to Natural Diamond.