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Oval|Lab Grown|IGI

0.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG837660529

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG837660529

Diamond specifications and retailer prices

From $252 CAD
$180 USD
As of October 28, 2026
Save $1,341 CAD (84%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,593 CAD at MOH London · As of October 25, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG837660529 or 837660529. Listed at 7 retailers as of October 25, 2026, with prices from $252 to $1,593, a $1,341 spread on the same certified stone. MOH London lists it at $1,593. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837660529
Dimensions6.26 × 4.48 × 2.79 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.26 mm4.48 mm0.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837660529
Side View
Table 62.0%Crown 35.8°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 62.3%

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: Oct 28
Current: $1,593 CAD|Low: $252 CAD|High: $1,657 CAD|Avg: $578 CAD|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$252 CAD
Retailer 5$259 CAD
Retailer 6$350 CAD
Retailer 2$381 CAD
Retailer 3$460 CAD
Retailer 4$693 CAD
MOH London$1,593 CAD

13 data points across 7 retailers

7 retailers$252 CAD to $1,593 CAD

A
Cheapest Retailer
-
$252 CAD
$180 USD
A
Retailer 2
-
$259 CAD
$185 USD
View
A
Retailer 3
-
$381 CAD
£214 GBP
View
B+
Retailer 4
-
$460 CAD
£259 GBP
View
B+
Retailer 5
-
$546 CAD
$390 USD
View
B
Retailer 6
-
$693 CAD
$495 USD
View
Most Expensive
B
MOH London
LG837660529 · Oct 25
$1,593 CAD
£896 GBP
View
6 more retailers have this diamond
Prices start from $252 CADSave up to $1,341 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 Oval
$252 CAD