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Marquise|Lab Grown|IGI

0.50ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG532274603

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG532274603

Diamond specifications and retailer prices

From $123 USD
As of October 30, 2026
Save $823 USD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,270 USD at MOH London · As of October 25, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532274603 or 532274603. Listed at 16 retailers as of October 30, 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532274603
Dimensions8.23 × 4.19 × 2.27 mm
L/W Ratio1.96
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
8.23 mm4.19 mm0.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532274603
Side View
Table 62.0%Crown 37.1°Girdle: STK-THKPavilion 32.4°Culet: NoneDepth 54.2%

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: $1,270 USD|Low: $97 USD|High: $1,284 USD|Avg: $361 USD|+0.1%
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 1, 2026
Retailer 9$123 USD
Retailer 5$137 USD
Retailer 13$142 USD
Retailer 3$162 USD
Retailer 10$162 USD
Retailer 6$280 USD
Retailer 12$293 USD
Retailer 2$315 USD
Retailer 7$367 USD
Retailer 4$379 USD
Retailer 11$488 USD
Retailer 8$544 USD
MOH London$1,270 USD

43 data points across 13 retailers

16 retailers$123 USD to $946 USD

A
Cheapest Retailer
-
$123 USD
A
Retailer 2
-
$137 USD
View
Final sale: no returns
A
Retailer 3
-
$142 USD
View
A
Retailer 4
-
$162 USD
View
A
Retailer 5
-
$162 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$280 USD
View
B+
Retailer 7
-
$293 USD
View
B
Retailer 8
-
$307 USD
HK$2,400 HKD
View
B
Retailer 9
-
$315 USD
£248 GBP
View
B
Retailer 10
-
$367 USD
£289 GBP
View
B
Retailer 11
-
$379 USD
View
B
Retailer 12
-
$488 USD
View
B
Retailer 13
-
$544 USD
View
B
Retailer 14
-
$545 USD
View
B
Retailer 15
-
$946 USD
View
Most Expensive
MOH London
LG532274603 · Oct 25
$1,270 USD
£1,000 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $123 USDSave up to $823 USD

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
$123 USD