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Marquise|Lab Grown|IGI

0.51ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG823640318

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823640318

Diamond specifications and retailer prices

From €196 EUR
$220 USD
As of November 1, 2026
Save €865 EUR (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,061 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG823640318 or 823640318. Listed at 7 retailers as of October 29, 2026, with prices from €196 to €1,061, a €865 spread on the same certified stone. MOH London lists it at €1,061. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823640318
Dimensions8.21 × 4.28 × 2.54 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.21 mm4.28 mm0.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823640318
Side View
Table 64.0%Crown 38.9°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 59.3%

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 1
Current: €1,061 EUR|Low: €196 EUR|High: €1,067 EUR|Avg: €404 EUR|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4€196 EUR
Retailer 7€247 EUR
Retailer 2€256 EUR
Retailer 3€305 EUR
Retailer 6€331 EUR
Retailer 5€457 EUR
MOH London€1,061 EUR

29 data points across 7 retailers

7 retailers€196 EUR to €1,061 EUR

A
Cheapest Retailer
-
€196 EUR
$220 USD
B+
Retailer 2
-
€247 EUR
$277 USD
View
B+
Retailer 3
-
€256 EUR
£226 GBP
View
B+
Retailer 4
-
€305 EUR
£269 GBP
View
B+
Retailer 5
-
€331 EUR
$371 USD
View
B
Retailer 6
-
€457 EUR
$513 USD
View
Most Expensive
B
MOH London
LG823640318 · Oct 29
€1,061 EUR
£937 GBP
View
6 more retailers have this diamond
Prices start from €196 EURSave up to €865 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
€196 EUR