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Marquise|Lab Grown|IGI

1.27ct G SI1 Marquise Lab Grown Diamond

G/SI1 • IGI LG637441314

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG637441314

Diamond specifications and retailer prices

From €457 EUR
£402 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: €457 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 1.27ct lab-grown marquise diamond

This 1.27ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included) and certified by IGI LG637441314 or 637441314. Listed at a single retailer as of October 29, 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

1.27
Carat
G
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG637441314
Dimensions11.74 × 5.60 × 3.45 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.74 mm5.60 mm1.27 ctG / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG637441314
Side View
Table 62.0%Crown 35.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: €457 EUR|Low: €457 EUR|High: €457 EUR|Avg: €457 EUR
December 30, 2025
MD Diamonds and Jewellers€457 EUR

3 data points across 1 retailer

1 retailer

B
MD Diamonds and Jewellers
LG637441314 · Oct 29
€457 EUR
£402 GBP
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B
1.27ct Marquise
€457 EUR