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Marquise|Lab Grown|IGI

1.22ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG803660044

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803660044

Diamond specifications and retailer prices

From £605 GBP
$810 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £605 GBP 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 1.22ct lab-grown marquise diamond

This 1.22ct 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 LG803660044 or 803660044. Listed at a single retailer as of October 31, 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

1.22
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803660044
Dimensions10.57 × 5.61 × 3.57 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.57 mm5.61 mm1.22 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803660044
Side View
Table 62.0%Crown 36.9°Girdle: THN-STKPavilion 40.9°Culet: NoneDepth 63.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £265 GBP|Low: £262 GBP|High: £375 GBP|Avg: £327 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
June 18, 2026
Retailer 1£265 GBP
Retailer 3£336 GBP
Retailer 2£367 GBP

10 data points across 3 retailers

1 retailer

B+
Brilliant Earth
19941230A · Oct 31
£605 GBP
$810 USD
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B+
1.22ct Marquise
£605 GBP