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Heart|Lab Grown|IGI

1.22ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG741525524

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG741525524

Diamond specifications and retailer prices

From £258 GBP
As of November 4, 2026
Save £591 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £849 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.22ct lab-grown heart diamond

This 1.22ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG741525524 or 741525524. Listed at 8 retailers as of November 2, 2026, with prices from £258 to £849, a £591 spread on the same certified stone. MOH London lists it at £849. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741525524
Dimensions6.53 × 7.21 × 4.39 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.53 mm7.21 mm1.22 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741525524
Side View
Table 61.0%Crown 39.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £849 GBP|Low: £256 GBP|High: £852 GBP|Avg: £501 GBP|+0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8£258 GBP
Retailer 3£286 GBP
Retailer 4£365 GBP
Retailer 9£379 GBP
Retailer 2£395 GBP
Retailer 6£461 GBP
Retailer 7£609 GBP
Retailer 5£807 GBP
MOH London£849 GBP

37 data points across 9 retailers

8 retailers£258 GBP to £849 GBP

B+
Cheapest Retailer
-
£258 GBP
A
Retailer 2
-
£286 GBP
View
B+
Retailer 3
-
£365 GBP
View
B+
Retailer 4
-
£395 GBP
View
B+
Retailer 5
-
£461 GBP
View
Retailer 6
-
£609 GBP
View
Price last confirmed 7 days ago
B
Retailer 7
-
£807 GBP
View
Most Expensive
B
MOH London
LG741525524 · Nov 2
£849 GBP
View
7 more retailers have this diamond
Prices start from £258 GBPSave up to £591 GBP

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.

A
1.22ct Heart
£258 GBP