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Marquise|Lab Grown|IGI

1.22ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG790644080

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790644080

Diamond specifications and retailer prices

From £710 GBP
$950 USD
As of November 6, 2026
2 retailers carry this diamond
Most expensive: £710 GBP at Brilliant Earth
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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG790644080 or 790644080. Listed at 2 retailers as of November 6, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790644080
Dimensions11.48 × 5.50 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.48 mm5.50 mm1.22 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790644080
Side View
Table 55.0%Crown 34.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £710 GBP|Low: £120 GBP|High: £58,488 GBP|Avg: £768 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
July 20, 2026
Retailer 6£300 GBP
Retailer 4£340 GBP
Retailer 3£358 GBP
Retailer 7£410 GBP
Retailer 9£419 GBP
Retailer 2£442 GBP
Retailer 5£511 GBP
Retailer 8£603 GBP
Brilliant Earth£710 GBP

57 data points across 9 retailers

2 retailers

Retailer 1
-
£358 GBP
Price last confirmed 128 days ago
Most Expensive
B
Brilliant Earth
18641269A · Nov 6
£710 GBP
$950 USD
View
1 more retailer has this diamond

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.

B
1.22ct Marquise
£710 GBP