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Marquise|Lab Grown|IGI

1.23ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG559274814

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG559274814

Diamond specifications and retailer prices

From €740 EUR
$830 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €740 EUR at Brilliant Earth
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 Brilliant Earth

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG559274814 or 559274814. 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559274814
Dimensions10.90 × 5.63 mm
L/W Ratio1.94
Girdle conditionFaceted
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
10.90 mm5.63 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559274814
Side View
Table 59.5%Crown 35.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: €740 EUR|Low: €399 EUR|High: €740 EUR|Avg: €683 EUR
Brilliant Earth
Retailer 2
February 18, 2026
Retailer 2€399 EUR
Brilliant Earth€740 EUR

5 data points across 2 retailers

1 retailer

B+
Brilliant Earth
16507175A · Nov 2
€740 EUR
$830 USD
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B+
1.23ct Marquise
€740 EUR