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Heart|Lab Grown|IGI

1.22ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG659441028

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG659441028

Diamond specifications and retailer prices

From £179 GBP
As of November 4, 2026
Save £744 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £923 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

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 LG659441028 or 659441028. Listed at 14 retailers as of November 4, 2026, with prices from £179 to £923, a £744 spread on the same certified stone. Reve Diamonds lists it at £923. 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 angle36.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659441028
Dimensions6.50 × 7.46 × 4.46 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.50 mm7.46 mm1.22 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659441028
Side View
Table 56.0%Crown 36.7°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 59.8%

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: £365 GBP|Low: £161 GBP|High: £933 GBP|Avg: £474 GBP|+15.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 5, 2026
Retailer 8£179 GBP
Retailer 5£180 GBP
Retailer 7£264 GBP
Retailer 11£340 GBP
Retailer 13£350 GBP
Retailer 4£355 GBP
Retailer 1£365 GBP
Retailer 3£438 GBP
Retailer 12£496 GBP
Retailer 2£637 GBP
Retailer 10£641 GBP
Retailer 9£679 GBP
Retailer 6£795 GBP
Reve Diamonds£923 GBP

37 data points across 14 retailers

14 retailers£179 GBP to £923 GBP

Retailer 1
-
£177 GBP
Price last confirmed 39 days ago
A
Retailer 2
-
£179 GBP
View
Final sale: no returns
A
Retailer 3
-
£264 GBP
View
B+
Retailer 4
-
£340 GBP
View
B+
Retailer 5
-
£350 GBP
View
B+
Retailer 6
-
£355 GBP
View
B+
Retailer 7
-
£365 GBP
View
B+
Retailer 8
-
£438 GBP
View
B+
Retailer 9
-
£496 GBP
View
B
Retailer 10
-
£637 GBP
View
B
Retailer 11
-
£641 GBP
View
B
Retailer 12
-
£679 GBP
View
B
Retailer 13
-
£795 GBP
View
Most Expensive
B
Reve Diamonds
93E23A215 · Nov 4
£923 GBP
$1,246 USD
View
13 more retailers have this diamond
Prices start from £179 GBPSave up to £744 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
£179 GBP