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Marquise|Lab Grown|IGI

1.50ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG826679586

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826679586

Diamond specifications and retailer prices

From $428 AUD
As of November 6, 2026
Save $1,069 AUD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,497 AUD at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826679586 or 826679586. Listed at 9 retailers as of November 2, 2026, with prices from $428 to $1,497, a $1,069 spread on the same certified stone. MOH London lists it at $1,497. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826679586
Dimensions11.75 × 5.46 × 3.62 mm
L/W Ratio2.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.75 mm5.46 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG826679586
Side View
Table 62.0%Crown 38.6°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 66.3%

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: Nov 6
Current: $1,497 AUD|Low: $428 AUD|High: $1,530 AUD|Avg: $835 AUD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8$428 AUD
Retailer 6$502 AUD
Retailer 3$627 AUD
Retailer 9$671 AUD
Retailer 2$681 AUD
Retailer 5$745 AUD
Retailer 7$1,278 AUD
Retailer 4$1,324 AUD
MOH London$1,497 AUD

43 data points across 9 retailers

9 retailers$428 AUD to $1,497 AUD

A
Cheapest Retailer
-
$428 AUD
B+
Retailer 2
-
$502 AUD
View
A
Retailer 3
-
$627 AUD
View
A
Retailer 4
-
$671 AUD
View
A
Retailer 5
-
$681 AUD
View
B+
Retailer 6
-
$745 AUD
View
B
Retailer 7
-
$1,278 AUD
View
B
Retailer 8
-
$1,324 AUD
View
Most Expensive
B
MOH London
LG826679586 · Nov 2
$1,497 AUD
£810 GBP
View
8 more retailers have this diamond
Prices start from $428 AUDSave up to $1,069 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
$428 AUD