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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 $315 AUD
$221 USD
As of October 30, 2026
Save $1,246 AUD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,560 AUD 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 $315 to $1,560, a $1,246 spread on the same certified stone. MOH London lists it at $1,560. 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: $1,560 AUD|Low: $312 AUD|High: $1,633 AUD|Avg: $855 AUD|-4.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$315 AUD
Retailer 3$364 AUD
Retailer 5$436 AUD
Retailer 2$653 AUD
Retailer 8$857 AUD
Retailer 7$1,251 AUD
Retailer 4$1,257 AUD
MOH London$1,560 AUD

26 data points across 8 retailers

8 retailers$315 AUD to $1,560 AUD

A
Cheapest Retailer
-
$315 AUD
$221 USD
A
Retailer 2
-
$364 AUD
$256 USD
View
Retailer 3
-
$436 AUD
£241 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
$653 AUD
€437 EUR
View
B+
Retailer 5
-
$857 AUD
$602 USD
View
B
Retailer 6
-
$1,251 AUD
$879 USD
View
B
Retailer 7
-
$1,257 AUD
$883 USD
View
Most Expensive
B
MOH London
LG835666080 · Nov 1
$1,560 AUD
£863 GBP
View
7 more retailers have this diamond
Prices start from $315 AUDSave up to $1,246 AUD

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
$315 AUD