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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 $392 NZD
$221 USD
As of October 30, 2026
Save $1,553 NZD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,945 NZD at MOH London · As of November 1, 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 30, 2026, with prices from $392 to $1,945, a $1,553 spread on the same certified stone. MOH London lists it at $1,945. 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

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: $1,945 NZD|Low: $389 NZD|High: $2,035 NZD|Avg: $1,065 NZD|-4.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$392 NZD
Retailer 3$454 NZD
Retailer 5$543 NZD
Retailer 2$814 NZD
Retailer 8$1,068 NZD
Retailer 7$1,560 NZD
Retailer 4$1,567 NZD
MOH London$1,945 NZD

26 data points across 8 retailers

8 retailers$392 NZD to $1,945 NZD

A
Cheapest Retailer
-
$392 NZD
$221 USD
A
Retailer 2
-
$454 NZD
$256 USD
View
Retailer 3
-
$543 NZD
£241 GBP
View
Price last confirmed 15 days ago
Retailer 4
-
$814 NZD
€437 EUR
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$1,068 NZD
$602 USD
View
B
Retailer 6
-
$1,560 NZD
$879 USD
View
B
Retailer 7
-
$1,567 NZD
$883 USD
View
Most Expensive
B
MOH London
LG835666080 · Nov 1
$1,945 NZD
£863 GBP
View
7 more retailers have this diamond
Prices start from $392 NZDSave up to $1,553 NZD

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
$392 NZD