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Round|Lab Grown|IGI

0.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG414059611

Shape and cutting style on the report: Round brilliant

Certificate IGI LG414059611

Diamond specifications and retailer prices

From $517 CAD
As of November 5, 2026
Save $1,364 CAD (73%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,506 CAD at MOH London · As of November 1, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG414059611 or 414059611. Listed at 12 retailers as of November 4, 2026, with a 264% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG414059611
Dimensions5.12 × 5.09 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
5.12 mm5.09 mm0.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG414059611
Side View
Table 56.5%Crown 36.7°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 62.2%

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: $2,506 CAD|Low: $344 CAD|High: $2,536 CAD|Avg: $1,040 CAD
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
November 6, 2026
Retailer 5$344 CAD
Retailer 8$517 CAD
Retailer 9$517 CAD
Retailer 12$580 CAD
Retailer 4$601 CAD
Retailer 3$641 CAD
Retailer 10$641 CAD
Retailer 11$1,024 CAD
Retailer 2$1,144 CAD
Retailer 6$1,151 CAD
Retailer 7$1,881 CAD
Retailer 13$2,063 CAD
MOH London$2,506 CAD

44 data points across 13 retailers

12 retailers$517 CAD to $1,881 CAD

B+
Cheapest Retailer
-
$517 CAD
B+
Retailer 2
-
$517 CAD
View
B
Retailer 3
-
$580 CAD
View
Final sale: no returns
B
Retailer 4
-
$601 CAD
View
Retailer 5
-
$641 CAD
View
Price last confirmed 12 days ago
B
Retailer 6
-
$641 CAD
View
B
Retailer 7
-
$1,024 CAD
View
B
Retailer 8
-
$1,144 CAD
View
Retailer 9
-
$1,151 CAD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$1,881 CAD
View
Retailer 11
-
$2,063 CAD
View
Price under review
Most Expensive
MOH London
LG414059611 · Nov 1
$2,506 CAD
£1,413 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $517 CADSave up to $1,364 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 Round
$517 CAD