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Marquise|Lab Grown|IGI

0.50ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG532257821

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG532257821

Diamond specifications and retailer prices

From €110 EUR
$123 USD
As of November 2, 2026
Save €375 EUR (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,131 EUR 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532257821 or 532257821. Listed at 14 retailers as of November 2, 2026, with a 342% 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532257821
Dimensions8.32 × 4.17 × 2.46 mm
L/W Ratio2.00
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
8.32 mm4.17 mm0.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532257821
Side View
Table 59.5%Crown 32.4°Girdle: THN-THKPavilion 38.3°Culet: NoneDepth 59.0%

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: €1,131 EUR|Low: €105 EUR|High: €1,145 EUR|Avg: €334 EUR|-1.0%
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€110 EUR
Retailer 5€122 EUR
Retailer 13€127 EUR
Retailer 3€144 EUR
Retailer 10€144 EUR
Retailer 6€250 EUR
Retailer 12€261 EUR
Retailer 2€278 EUR
Retailer 7€327 EUR
Retailer 4€338 EUR
Retailer 11€435 EUR
Retailer 8€485 EUR
MOH London€1,131 EUR

44 data points across 13 retailers

14 retailers€110 EUR to €485 EUR

A
Cheapest Retailer
-
€110 EUR
$123 USD
A
Retailer 2
-
€122 EUR
$137 USD
View
Final sale: no returns
A
Retailer 3
-
€127 EUR
$142 USD
View
Retailer 4
-
€144 EUR
$162 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€144 EUR
$162 USD
View
B+
Retailer 6
-
€250 EUR
$280 USD
View
B+
Retailer 7
-
€261 EUR
$293 USD
View
B
Retailer 8
-
€278 EUR
£246 GBP
View
B
Retailer 9
-
€327 EUR
£289 GBP
View
B
Retailer 10
-
€338 EUR
$379 USD
View
B
Retailer 11
-
€377 EUR
HK$3,300 HKD
View
B
Retailer 12
-
€435 EUR
$488 USD
View
B
Retailer 13
-
€485 EUR
$544 USD
View
Most Expensive
MOH London
LG532257821 · Nov 1
€1,131 EUR
£999 GBP
View
Price under review
13 more retailers have this diamond
Prices start from €110 EURSave up to €375 EUR

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
€110 EUR