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Cushion|Lab Grown|IGI

2.51ct H VS2 Cushion Lab Grown Diamond

GD • H/VS2 • IGI LG450015331

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG450015331

Diamond specifications and retailer prices

From $504 USD
As of October 25, 2026
Save $1,543 USD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,047 USD at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG450015331 or 450015331. Listed at 7 retailers as of October 25, 2026, with prices from $504 to $2,047, a $1,543 spread on the same certified stone. MOH London lists it at $2,047. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
H
Color
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450015331
Dimensions7.85 × 7.83 × 5.31 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
7.85 mm7.83 mm2.51 ctH / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450015331
Side View
Table 62.5%Crown 37.3°Girdle: STK-THKPavilion 40°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $2,047 USD|Low: $473 USD|High: $2,625 USD|Avg: $1,280 USD|+5.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 25, 2026
Retailer 4$504 USD
Retailer 6$608 USD
Retailer 3$797 USD
Retailer 9$840 USD
Retailer 5$861 USD
Retailer 2$1,385 USD
Retailer 7$1,939 USD
MOH London$2,047 USD
Retailer 8$2,625 USD

14 data points across 9 retailers

7 retailers$504 USD to $2,047 USD

B+
Cheapest Retailer
-
$504 USD
B+
Retailer 2
-
$608 USD
View
B+
Retailer 3
-
$797 USD
View
B+
Retailer 4
-
$861 USD
View
B+
Retailer 5
-
$1,385 USD
View
Retailer 6
-
$1,939 USD
View
Price last confirmed 12 days ago
Most Expensive
B
MOH London
LG450015331 · Oct 26
$2,047 USD
£1,612 GBP
View
6 more retailers have this diamond
Prices start from $504 USDSave up to $1,543 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
2.51ct Cushion
$504 USD