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Marquise|Lab Grown|IGI

1.21ct H VS1 Marquise Lab Grown Diamond

H/VS1 • IGI LG638434763

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG638434763

Diamond specifications and retailer prices

From €450 EUR
£397 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: €450 EUR at MD Diamonds and Jewellers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at MD Diamonds and Jewellers

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG638434763 or 638434763. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.21
Carat
H
Color
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638434763
Dimensions11.29 × 5.49 × 3.48 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.29 mm5.49 mm1.21 ctH / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638434763
Side View
Table 62.0%Crown 34.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: €450 EUR|Low: €450 EUR|High: €450 EUR|Avg: €450 EUR
December 30, 2025
MD Diamonds and Jewellers€450 EUR

3 data points across 1 retailer

1 retailer

B+
MD Diamonds and Jewellers
LG638434763 · Nov 2
€450 EUR
£397 GBP
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B+
1.21ct Marquise
€450 EUR