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Round|Lab Grown|IGI

2.51ct G SI1 Round Lab Grown Diamond

GD • G/SI1 • IGI LG734518739

Shape and cutting style on the report: Round brilliant

Certificate IGI LG734518739

Diamond specifications and retailer prices

From $427 CAD
$305 USD
As of October 29, 2026
Save $1,695 CAD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,122 CAD at MOH London · As of October 25, 2026
View at MOH London

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG734518739 or 734518739. Listed at 13 retailers as of October 25, 2026, with prices from $427 to $2,122, a $1,695 spread on the same certified stone. MOH London lists it at $2,122. 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
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734518739
Dimensions8.99 × 8.95 × 5.01 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.99 mm8.95 mm2.51 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734518739
Side View
Table 68.0%Crown 30.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 55.8%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $2,122 CAD|Low: $427 CAD|High: $2,377 CAD|Avg: $1,004 CAD|-9.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 7$427 CAD
Retailer 4$494 CAD
Retailer 12$529 CAD
Retailer 13$529 CAD
Retailer 5$543 CAD
Retailer 9$864 CAD
Retailer 2$937 CAD
Retailer 8$948 CAD
Retailer 6$966 CAD
Retailer 11$1,145 CAD
Retailer 10$1,624 CAD
Retailer 3$1,699 CAD
MOH London$2,122 CAD

42 data points across 13 retailers

13 retailers$427 CAD to $2,122 CAD

A
Cheapest Retailer
-
$427 CAD
$305 USD
B+
Retailer 2
-
$494 CAD
$353 USD
View
B+
Retailer 3
-
$529 CAD
$378 USD
View
B+
Retailer 4
-
$529 CAD
$378 USD
View
B+
Retailer 5
-
$543 CAD
$388 USD
View
Final sale: no returns
B
Retailer 6
-
$864 CAD
$617 USD
View
B+
Retailer 7
-
$937 CAD
£527 GBP
View
B+
Retailer 8
-
$948 CAD
$677 USD
View
B+
Retailer 9
-
$966 CAD
$690 USD
View
B+
Retailer 10
-
$1,145 CAD
$818 USD
View
B
Retailer 11
-
$1,624 CAD
$1,160 USD
View
B
Retailer 12
-
$1,699 CAD
$1,214 USD
View
Most Expensive
B
MOH London
LG734518739 · Oct 25
$2,122 CAD
£1,194 GBP
View
12 more retailers have this diamond
Prices start from $427 CADSave up to $1,695 CAD

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 Round
$427 CAD