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Marquise|Lab Grown|IGI

0.51ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG532262804

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG532262804

Diamond specifications and retailer prices

From €111 EUR
$124 USD
As of November 2, 2026
Save €739 EUR (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,154 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct 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 LG532262804 or 532262804. Listed at 16 retailers as of November 1, 2026, with a 668% 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

0.51
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532262804
Dimensions8.55 × 4.05 × 2.34 mm
L/W Ratio2.11
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
8.55 mm4.05 mm0.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG532262804
Side View
Table 56.5%Crown 34.8°Girdle: MED-THKPavilion 35.2°Culet: NoneDepth 57.8%

Caratlytics Score

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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 2
Current: €1,154 EUR|Low: €106 EUR|High: €1,162 EUR|Avg: €326 EUR|+0.5%
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€111 EUR
Retailer 5€124 EUR
Retailer 13€128 EUR
Retailer 3€146 EUR
Retailer 10€146 EUR
Retailer 6€250 EUR
Retailer 12€265 EUR
Retailer 2€284 EUR
Retailer 7€332 EUR
Retailer 4€341 EUR
Retailer 11€442 EUR
Retailer 8€467 EUR
MOH London€1,154 EUR

43 data points across 13 retailers

16 retailers€111 EUR to €849 EUR

A
Cheapest Retailer
-
€111 EUR
$124 USD
A
Retailer 2
-
€124 EUR
$139 USD
View
Final sale: no returns
A
Retailer 3
-
€128 EUR
$144 USD
View
Retailer 4
-
€146 EUR
$164 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€146 EUR
$164 USD
View
B+
Retailer 6
-
€250 EUR
$280 USD
View
B+
Retailer 7
-
€265 EUR
$297 USD
View
B
Retailer 8
-
€274 EUR
HK$2,400 HKD
View
B
Retailer 9
-
€284 EUR
£250 GBP
View
B
Retailer 10
-
€332 EUR
£293 GBP
View
B
Retailer 11
-
€341 EUR
$382 USD
View
B
Retailer 12
-
€442 EUR
$496 USD
View
B
Retailer 13
-
€467 EUR
$524 USD
View
B
Retailer 14
-
€493 EUR
$552 USD
View
B
Retailer 15
-
€849 EUR
$952 USD
View
Most Expensive
MOH London
LG532262804 · Oct 29
€1,154 EUR
£1,019 GBP
View
Price under review
15 more retailers have this diamond
Prices start from €111 EURSave up to €739 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
0.51ct Marquise
€111 EUR