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Oval|Lab Grown|IGI

0.51ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG400929381

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG400929381

Diamond specifications and retailer prices

From $494 CAD
As of November 5, 2026
Save $606 CAD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,388 CAD at MOH London · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG400929381 or 400929381. Listed at 12 retailers as of November 5, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400929381
Dimensions6.09 × 4.47 × 2.91 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.09 mm4.47 mm0.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400929381
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.1%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $2,388 CAD|Low: $346 CAD|High: $2,424 CAD|Avg: $928 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$346 CAD
Retailer 6$494 CAD
Retailer 7$535 CAD
Retailer 10$553 CAD
Retailer 8$613 CAD
Retailer 11$613 CAD
Retailer 9$983 CAD
Retailer 4$1,092 CAD
Retailer 2$1,100 CAD
Retailer 5$1,798 CAD
MOH London$2,388 CAD

45 data points across 11 retailers

12 retailers$494 CAD to $1,100 CAD

B+
Cheapest Retailer
-
$494 CAD
B
Retailer 2
-
$535 CAD
View
B
Retailer 3
-
$553 CAD
View
Final sale: no returns
B
Retailer 4
-
$574 CAD
View
B
Retailer 5
-
$613 CAD
View
Retailer 6
-
$613 CAD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$983 CAD
View
B
Retailer 8
-
$1,092 CAD
View
B
Retailer 9
-
$1,100 CAD
View
Retailer 10
-
$1,798 CAD
View
Price under review
Retailer 11
-
$1,971 CAD
View
Price under review
Most Expensive
MOH London
LG400929381 · Nov 5
$2,388 CAD
£1,337 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $494 CADSave up to $606 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.

B+
0.51ct Oval
$494 CAD