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Marquise|Lab Grown|IGI

4.05ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG650475156

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG650475156

Diamond specifications and retailer prices

From $655 SGD
$512 USD
As of November 2, 2026
Save $2,735 SGD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,390 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650475156 or 650475156. Listed at 14 retailers as of November 1, 2026, with prices from $655 to $3,390, a $2,735 spread on the same certified stone. MOH London lists it at $3,390. 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

4.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650475156
Dimensions16.73 × 8.25 × 5.23 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.73 mm8.25 mm4.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650475156
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.4%

Caratlytics Score

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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: Nov 2
Current: $3,390 SGD|Low: $655 SGD|High: $6,551 SGD|Avg: $2,067 SGD|-0.6%
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
November 2, 2026
Retailer 12$655 SGD
Retailer 2$701 SGD
Retailer 5$734 SGD
Retailer 13$812 SGD
Retailer 16$900 SGD
Retailer 14$991 SGD
Retailer 15$1,237 SGD
Retailer 10$1,258 SGD
Retailer 4$1,261 SGD
Retailer 3$1,492 SGD
Retailer 7$1,722 SGD
Retailer 11$2,096 SGD
Retailer 17$2,136 SGD
Retailer 6$3,338 SGD
MOH London$3,390 SGD
Retailer 8$5,103 SGD
Retailer 9$6,551 SGD

6 data points across 17 retailers

14 retailers$655 SGD to $3,390 SGD

A
Cheapest Retailer
-
$655 SGD
$512 USD
A
Retailer 2
-
$701 SGD
£431 GBP
View
A
Retailer 3
-
$734 SGD
$574 USD
View
A
Retailer 4
-
$812 SGD
$635 USD
View
A
Retailer 5
-
$900 SGD
HK$5,500 HKD
View
A
Retailer 6
-
$991 SGD
$775 USD
View
A
Retailer 7
-
$1,237 SGD
$967 USD
View
A
Retailer 8
-
$1,258 SGD
£774 GBP
View
B+
Retailer 9
-
$1,261 SGD
$986 USD
View
B+
Retailer 10
-
$1,492 SGD
$1,167 USD
View
B+
Retailer 11
-
$2,096 SGD
$1,639 USD
View
B
Retailer 12
-
$2,136 SGD
$1,670 USD
View
B
Retailer 13
-
$3,338 SGD
$2,610 USD
View
Most Expensive
B
MOH London
LG650475156 · Nov 1
$3,390 SGD
£2,087 GBP
View
13 more retailers have this diamond
Prices start from $655 SGDSave up to $2,735 SGD

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
4.05ct Marquise
$655 SGD