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Marquise|Lab Grown|IGI

4.01ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG678527855

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG678527855

Diamond specifications and retailer prices

From $666 CAD
$477 USD
As of October 30, 2026
Save $2,389 CAD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,055 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 4.01ct lab-grown marquise diamond

This 4.01ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678527855 or 678527855. Listed at 13 retailers as of October 29, 2026, with prices from $666 to $3,055, a $2,389 spread on the same certified stone. MOH London lists it at $3,055. 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

4.01
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678527855
Dimensions16.35 × 8.19 × 5.17 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.35 mm8.19 mm4.01 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678527855
Side View
Table 59.0%Crown 41.7°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 63.1%

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 30
Current: $3,055 CAD|Low: $666 CAD|High: $7,948 CAD|Avg: $2,353 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 10$666 CAD
Retailer 5$747 CAD
Retailer 11$785 CAD
Retailer 13$827 CAD
Retailer 16$912 CAD
Retailer 14$1,027 CAD
Retailer 4$1,291 CAD
Retailer 15$1,301 CAD
Retailer 12$1,373 CAD
Retailer 7$1,807 CAD
Retailer 3$1,870 CAD
Retailer 2$2,222 CAD
Retailer 17$2,658 CAD
MOH London$3,055 CAD
Retailer 6$3,478 CAD
Retailer 9$6,200 CAD
Retailer 8$7,948 CAD

4 data points across 17 retailers

13 retailers$666 CAD to $3,055 CAD

A
Cheapest Retailer
-
$666 CAD
$477 USD
A
Retailer 2
-
$747 CAD
$535 USD
View
A
Retailer 3
-
$785 CAD
£442 GBP
View
A
Retailer 4
-
$827 CAD
$592 USD
View
A
Retailer 5
-
$912 CAD
HK$5,100 HKD
View
A
Retailer 6
-
$1,027 CAD
$735 USD
View
B+
Retailer 7
-
$1,291 CAD
$924 USD
View
A
Retailer 8
-
$1,301 CAD
$931 USD
View
A
Retailer 9
-
$1,373 CAD
£774 GBP
View
B+
Retailer 10
-
$1,870 CAD
$1,339 USD
View
B
Retailer 11
-
$2,222 CAD
$1,591 USD
View
B
Retailer 12
-
$2,658 CAD
$1,903 USD
View
Most Expensive
B
MOH London
LG678527855 · Oct 29
$3,055 CAD
£1,722 GBP
View
12 more retailers have this diamond
Prices start from $666 CADSave up to $2,389 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
4.01ct Marquise
$666 CAD