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Round|Lab Grown|IGI

0.51ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG502108737

Shape and cutting style on the report: Round brilliant

Certificate IGI LG502108737

Diamond specifications and retailer prices

From $383 CAD
$274 USD
As of October 29, 2026
Save $1,533 CAD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,916 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG502108737 or 502108737. Listed at 11 retailers as of October 29, 2026, with prices from $383 to $1,916, a $1,533 spread on the same certified stone. MOH London lists it at $1,916. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502108737
Dimensions5.19 × 5.17 × 3.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.19 mm5.17 mm0.51 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG502108737
Side View
Table 55.5%Crown 31.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.5%

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: $1,916 CAD|Low: $307 CAD|High: $1,928 CAD|Avg: $774 CAD|-0.6%
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
Retailer 14
October 29, 2026
Retailer 8$383 CAD
Retailer 6$401 CAD
Retailer 13$429 CAD
Retailer 3$444 CAD
Retailer 9$447 CAD
Retailer 10$475 CAD
Retailer 12$475 CAD
Retailer 4$698 CAD
Retailer 11$788 CAD
Retailer 2$890 CAD
Retailer 5$968 CAD
Retailer 7$1,460 CAD
Retailer 14$1,528 CAD
MOH London$1,916 CAD

19 data points across 14 retailers

11 retailers$383 CAD to $1,916 CAD

A
Cheapest Retailer
-
$383 CAD
$274 USD
A
Retailer 2
-
$429 CAD
$307 USD
View
Final sale: no returns
A
Retailer 3
-
$444 CAD
$318 USD
View
A
Retailer 4
-
$447 CAD
$320 USD
View
A
Retailer 5
-
$475 CAD
$340 USD
View
A
Retailer 6
-
$475 CAD
$340 USD
View
B+
Retailer 7
-
$788 CAD
$564 USD
View
B+
Retailer 8
-
$890 CAD
€607 EUR
View
B
Retailer 9
-
$1,460 CAD
$1,045 USD
View
B
Retailer 10
-
$1,528 CAD
$1,094 USD
View
Most Expensive
B
MOH London
LG502108737 · Oct 29
$1,916 CAD
£1,080 GBP
View
10 more retailers have this diamond
Prices start from $383 CADSave up to $1,533 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
0.51ct Round
$383 CAD