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Marquise|Lab Grown|IGI

1.50ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG835666080

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG835666080

Diamond specifications and retailer prices

From $283 SGD
$221 USD
As of October 30, 2026
Save $1,120 SGD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,403 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835666080 or 835666080. Listed at 8 retailers as of October 26, 2026, with prices from $283 to $1,403, a $1,120 spread on the same certified stone. MOH London lists it at $1,403. 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

1.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835666080
Dimensions11.72 × 6.03 × 3.73 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.72 mm6.03 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835666080
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.9%

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: Oct 30
Current: $1,403 SGD|Low: $280 SGD|High: $1,466 SGD|Avg: $769 SGD|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 25, 2026
Retailer 6$283 SGD
Retailer 3$327 SGD
Retailer 5$391 SGD
Retailer 2$587 SGD
Retailer 8$770 SGD
Retailer 7$1,124 SGD
Retailer 4$1,129 SGD
MOH London$1,403 SGD

25 data points across 8 retailers

8 retailers$283 SGD to $1,403 SGD

A
Cheapest Retailer
-
$283 SGD
$221 USD
A
Retailer 2
-
$327 SGD
$256 USD
View
Retailer 3
-
$391 SGD
£241 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$587 SGD
€437 EUR
View
B+
Retailer 5
-
$770 SGD
$602 USD
View
B
Retailer 6
-
$1,124 SGD
$879 USD
View
B
Retailer 7
-
$1,129 SGD
$883 USD
View
Most Expensive
B
MOH London
LG835666080 · Oct 26
$1,403 SGD
£864 GBP
View
7 more retailers have this diamond
Prices start from $283 SGDSave up to $1,120 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
1.50ct Marquise
$283 SGD