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Marquise|Lab Grown|IGI

0.50ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG539215674

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG539215674

Diamond specifications and retailer prices

From $176 AUD
$123 USD
As of November 2, 2026
Save $1,175 AUD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,809 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG539215674 or 539215674. Listed at 16 retailers as of November 1, 2026, with a 669% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539215674
Dimensions7.96 × 4.16 × 2.65 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.96 mm4.16 mm0.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539215674
Side View
Table 57.0%Crown 30.2°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 63.7%

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: Nov 2
Current: $1,809 AUD|Low: $168 AUD|High: $1,832 AUD|Avg: $510 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 9$176 AUD
Retailer 5$194 AUD
Retailer 13$203 AUD
Retailer 3$231 AUD
Retailer 10$231 AUD
Retailer 6$400 AUD
Retailer 12$418 AUD
Retailer 2$445 AUD
Retailer 7$523 AUD
Retailer 4$541 AUD
Retailer 11$696 AUD
Retailer 8$776 AUD
MOH London$1,809 AUD

42 data points across 13 retailers

16 retailers$176 AUD to $1,350 AUD

A
Cheapest Retailer
-
$176 AUD
$123 USD
A
Retailer 2
-
$194 AUD
$136 USD
View
Final sale: no returns
A
Retailer 3
-
$203 AUD
$142 USD
View
A
Retailer 4
-
$231 AUD
$162 USD
View
Retailer 5
-
$231 AUD
$162 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$400 AUD
$280 USD
View
B+
Retailer 7
-
$418 AUD
$293 USD
View
B
Retailer 8
-
$438 AUD
HK$2,400 HKD
View
B
Retailer 9
-
$445 AUD
£246 GBP
View
B
Retailer 10
-
$523 AUD
£289 GBP
View
B
Retailer 11
-
$541 AUD
$379 USD
View
B
Retailer 12
-
$696 AUD
$488 USD
View
B
Retailer 13
-
$776 AUD
$544 USD
View
B
Retailer 14
-
$778 AUD
$545 USD
View
B
Retailer 15
-
$1,350 AUD
$946 USD
View
Most Expensive
MOH London
LG539215674 · Nov 1
$1,809 AUD
£998 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $176 AUDSave up to $1,175 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
0.50ct Marquise
$176 AUD