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Marquise|Lab Grown|IGI

1.40ct F FL Marquise Lab Grown Diamond

EX • F/FL • IGI LG813601658

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813601658

Diamond specifications and retailer prices

From $907 SGD
As of November 6, 2026
Save $1,735 SGD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,755 SGD at Brilliant Earth · As of October 3, 2026
View at Brilliant Earth

About this 1.4ct lab-grown marquise diamond

This 1.4ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813601658 or 813601658. Listed at 9 retailers as of November 6, 2026, with a 191% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
F
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813601658
Dimensions12.01 × 5.76 × 3.47 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.01 mm5.76 mm1.40 ctF / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813601658
Side View
Table 62.0%Crown 34.3°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 60.2%

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: Nov 6
Current: $2,563 SGD|Low: $515 SGD|High: $3,768 SGD|Avg: $1,530 SGD|-32.0%
Brilliant Earth
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
Retailer 18
Retailer 19
October 30, 2026
Retailer 19$573 SGD
Retailer 3$763 SGD
Retailer 9$855 SGD
Retailer 17$878 SGD
Retailer 12$907 SGD
Retailer 2$947 SGD
Retailer 18$975 SGD
Retailer 5$1,018 SGD
Retailer 4$1,043 SGD
Retailer 15$1,239 SGD
Retailer 8$1,392 SGD
Retailer 13$1,870 SGD
Retailer 10$1,890 SGD
Retailer 7$2,038 SGD
Retailer 11$2,183 SGD
Retailer 6$2,261 SGD
Brilliant Earth$2,563 SGD
Retailer 14$2,594 SGD
Retailer 16$2,643 SGD

18 data points across 19 retailers

9 retailers$907 SGD to $2,643 SGD

A
Cheapest Retailer
-
$907 SGD
A
Retailer 2
-
$947 SGD
View
Retailer 3
-
$975 SGD
View
Price last confirmed 37 days ago
B+
Retailer 4
-
$1,239 SGD
View
B
Retailer 5
-
$1,870 SGD
View
B
Retailer 6
-
$2,563 SGD
View
B
Retailer 7
-
$2,594 SGD
View
B
Retailer 8
-
$2,643 SGD
View
Most Expensive
Brilliant Earth
20553964A · Oct 3
$3,755 SGD
$2,930 USD
View
Price last confirmed 34 days ago
8 more retailers have this diamond
Prices start from $907 SGDSave up to $1,735 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
1.40ct Marquise
$907 SGD