Cushion|Lab Grown|IGI

2.51ct I VS1 Cushion Lab Grown Diamond

VG • I/VS1 • IGI LG830637403

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830637403

Diamond specifications and retailer prices

From $653 USD
HK$5,100 HKD
As of November 1, 2026
Save $1,845 USD (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,498 USD at MOH London · As of November 1, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG830637403 or 830637403. Listed at 9 retailers as of November 1, 2026, with prices from $653 to $2,498, a $1,845 spread on the same certified stone. MOH London lists it at $2,498. 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
I
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle44.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830637403
Dimensions9.01 × 6.97 × 4.87 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.01 mm6.97 mm2.51 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830637403
Side View
Table 67.0%Crown 36.9°Girdle: MED-STKPavilion 44.9°Culet: NoneDepth 69.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,498 USD|Low: $627 USD|High: $2,525 USD|Avg: $1,339 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$653 USD
Retailer 2$683 USD
Retailer 9$698 USD
Retailer 4$740 USD
Retailer 3$874 USD
Retailer 6$1,400 USD
Retailer 8$1,411 USD
Retailer 7$1,896 USD
Retailer 10$1,952 USD
MOH London$2,498 USD

7 data points across 10 retailers

9 retailers$653 USD to $2,498 USD

A
Cheapest Retailer
-
$653 USD
HK$5,100 HKD
A
Retailer 2
-
$683 USD
£538 GBP
View
A
Retailer 3
-
$698 USD
View
A
Retailer 4
-
$740 USD
View
B+
Retailer 5
-
$874 USD
€832 EUR
View
Retailer 6
-
$1,400 USD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$1,896 USD
SGD 2,562 SGD
View
B+
Retailer 8
-
$1,952 USD
View
Most Expensive
B
MOH London
LG830637403 · Nov 1
$2,498 USD
£1,967 GBP
View
8 more retailers have this diamond
Prices start from $653 USDSave up to $1,845 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.

A
2.51ct Cushion
$653 USD