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Marquise|Lab Grown|IGI

1.50ct I SI2 Marquise Lab Grown Diamond

ID • I/SI2 • IGI LG436072051

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436072051

Diamond specifications and retailer prices

From $1,493 NZD
$840 USD
As of October 31, 2026
Save $5,890 NZD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,383 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072051 or 436072051. Listed at 9 retailers as of October 31, 2026, with prices from $1,493 to $7,383, a $5,890 spread on the same certified stone. MOH London lists it at $7,383. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.1°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072051
Dimensions10.94 × 6.06 × 3.91 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Top View
10.94 mm6.06 mm1.50 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072051
Side View
Table 58.5%Crown 33.1°Girdle: STK-VTKPavilion 41.4°Culet: NoneDepth 64.5%

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: Oct 31
Current: $7,383 NZD|Low: $1,493 NZD|High: $7,483 NZD|Avg: $3,564 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$1,493 NZD
Retailer 3$1,982 NZD
Retailer 7$2,156 NZD
Retailer 4$2,298 NZD
Retailer 9$3,288 NZD
Retailer 5$3,656 NZD
Retailer 6$4,308 NZD
Retailer 8$4,662 NZD
MOH London$7,383 NZD

15 data points across 9 retailers

9 retailers$1,493 NZD to $7,383 NZD

A
Cheapest Retailer
-
$1,493 NZD
$840 USD
B+
Retailer 2
-
$1,982 NZD
$1,115 USD
View
B+
Retailer 3
-
$2,156 NZD
$1,213 USD
View
B+
Retailer 4
-
$2,298 NZD
$1,293 USD
View
Retailer 5
-
$2,298 NZD
$1,293 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
$3,656 NZD
$2,057 USD
View
B
Retailer 7
-
$4,308 NZD
$2,424 USD
View
B
Retailer 8
-
$4,662 NZD
$2,623 USD
View
Most Expensive
B
MOH London
LG436072051 · Nov 1
$7,383 NZD
£3,271 GBP
View
8 more retailers have this diamond
Prices start from $1,493 NZDSave up to $5,890 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
$1,493 NZD