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Heart|Lab Grown|IGI

1.22ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG720596430

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG720596430

Diamond specifications and retailer prices

From £241 GBP
As of November 4, 2026
Save £589 GBP (71%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £830 GBP at MOH London · As of November 5, 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 LG720596430 or 720596430. Listed at 10 retailers as of November 4, 2026, with prices from £241 to £830, a £589 spread on the same certified stone. MOH London lists it at £830. 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 angle32.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720596430
Dimensions6.66 × 7.47 × 4.32 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.66 mm7.47 mm1.22 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720596430
Side View
Table 59.0%Crown 32.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £830 GBP|Low: £241 GBP|High: £866 GBP|Avg: £484 GBP|-3.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5£241 GBP
Retailer 6£246 GBP
Retailer 2£321 GBP
Retailer 7£348 GBP
Retailer 3£428 GBP
Retailer 10£436 GBP
Retailer 4£582 GBP
Retailer 9£600 GBP
Retailer 8£612 GBP
MOH London£830 GBP

45 data points across 10 retailers

10 retailers£241 GBP to £830 GBP

B+
Cheapest Retailer
-
£241 GBP
A
Retailer 2
-
£246 GBP
View
A
Retailer 3
-
£321 GBP
View
B+
Retailer 4
-
£348 GBP
View
B+
Retailer 5
-
£428 GBP
View
Retailer 6
-
£582 GBP
View
Price last confirmed 9 days ago
B
Retailer 7
-
£600 GBP
View
B
Retailer 8
-
£612 GBP
View
B
Retailer 9
-
£732 GBP
View
Most Expensive
B
MOH London
LG720596430 · Nov 5
£830 GBP
View
9 more retailers have this diamond
Prices start from £241 GBPSave up to £589 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
£241 GBP