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Marquise|Lab Grown|IGI

1.50ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG831621343

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831621343

Diamond specifications and retailer prices

From $548 AUD
$385 USD
As of October 30, 2026
Save $1,225 AUD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,907 AUD at MOH London · As of October 19, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831621343 or 831621343. Listed at 5 retailers as of October 30, 2026, with a 223% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831621343
Dimensions12.39 × 5.94 × 3.57 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.39 mm5.94 mm1.50 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831621343
Side View
Table 63.0%Crown 33°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 60.1%

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 30
Current: $1,907 AUD|Low: $548 AUD|High: $1,920 AUD|Avg: $1,129 AUD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4$548 AUD
Retailer 3$578 AUD
Retailer 5$876 AUD
Retailer 2$1,773 AUD
MOH London$1,907 AUD

24 data points across 5 retailers

5 retailers$548 AUD to $1,773 AUD

A
Cheapest Retailer
-
$548 AUD
$385 USD
B+
Retailer 2
-
$578 AUD
$406 USD
View
Retailer 3
-
$876 AUD
£484 GBP
View
Price last confirmed 11 days ago
B
Retailer 4
-
$1,773 AUD
$1,245 USD
View
Most Expensive
MOH London
LG831621343 · Oct 19
$1,907 AUD
£1,055 GBP
View
Price last confirmed 14 days ago
4 more retailers have this diamond
Prices start from $548 AUDSave up to $1,225 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
$548 AUD