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Marquise|Lab Grown|IGI

0.51ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG542212263

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG542212263

Diamond specifications and retailer prices

From $174 CAD
$124 USD
As of October 27, 2026
Save $1,159 CAD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,811 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise 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 LG542212263 or 542212263. Listed at 16 retailers as of October 27, 2026, with a 668% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542212263
Dimensions8.94 × 4.17 × 2.47 mm
L/W Ratio2.14
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
8.94 mm4.17 mm0.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542212263
Side View
Table 64.0%Crown 30.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.2%

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 27
Current: $1,811 CAD|Low: $103 CAD|High: $1,822 CAD|Avg: $541 CAD|+0.4%
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
Retailer 15
Retailer 16
October 29, 2026
Retailer 8$103 CAD
Retailer 11$174 CAD
Retailer 7$195 CAD
Retailer 16$202 CAD
Retailer 3$230 CAD
Retailer 13$230 CAD
Retailer 12$406 CAD
Retailer 14$413 CAD
Retailer 2$446 CAD
Retailer 9$521 CAD
Retailer 4$535 CAD
Retailer 15$693 CAD
Retailer 10$732 CAD
Retailer 5$773 CAD
Retailer 6$1,333 CAD
MOH London$1,811 CAD

42 data points across 16 retailers

16 retailers$174 CAD to $1,333 CAD

A
Cheapest Retailer
-
$174 CAD
$124 USD
A
Retailer 2
-
$195 CAD
$139 USD
View
Final sale: no returns
A
Retailer 3
-
$202 CAD
$144 USD
View
A
Retailer 4
-
$230 CAD
$164 USD
View
A
Retailer 5
-
$230 CAD
$164 USD
View
B+
Retailer 6
-
$406 CAD
$290 USD
View
B+
Retailer 7
-
$413 CAD
$295 USD
View
B+
Retailer 8
-
$446 CAD
£251 GBP
View
B+
Retailer 9
-
$466 CAD
HK$2,600 HKD
View
B+
Retailer 10
-
$521 CAD
£293 GBP
View
B
Retailer 11
-
$535 CAD
$382 USD
View
B
Retailer 12
-
$693 CAD
$495 USD
View
B
Retailer 13
-
$732 CAD
$523 USD
View
B
Retailer 14
-
$773 CAD
$552 USD
View
B
Retailer 15
-
$1,333 CAD
$952 USD
View
Most Expensive
B
MOH London
LG542212263 · Oct 29
$1,811 CAD
£1,019 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $174 CADSave up to $1,159 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 Marquise
$174 CAD