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Heart|Lab Grown|IGI

1.22ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG817664394

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG817664394

Diamond specifications and retailer prices

From £141 GBP
As of November 4, 2026
Save £721 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £863 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 LG817664394 or 817664394. Listed at 17 retailers as of November 4, 2026, with prices from £141 to £863, a £721 spread on the same certified stone. Reve Diamonds lists it at £863. 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 angle32.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817664394
Dimensions6.55 × 7.35 × 4.41 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.55 mm7.35 mm1.22 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817664394
Side View
Table 60.0%Crown 32.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.0%

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: £316 GBP|Low: £136 GBP|High: £863 GBP|Avg: £434 GBP|+3.6%
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
Retailer 14
Retailer 15
Reve Diamonds
November 5, 2026
Retailer 12£141 GBP
Retailer 11£158 GBP
Retailer 14£164 GBP
Retailer 13£176 GBP
Retailer 5£248 GBP
Retailer 1£316 GBP
Retailer 3£356 GBP
Retailer 15£370 GBP
Retailer 2£384 GBP
Retailer 9£443 GBP
Retailer 10£556 GBP
Retailer 7£573 GBP
Retailer 6£603 GBP
Retailer 4£608 GBP
Retailer 8£817 GBP
Reve Diamonds£863 GBP

44 data points across 16 retailers

17 retailers£141 GBP to £863 GBP

A
Cheapest Retailer
-
£141 GBP
A
Retailer 2
-
£158 GBP
View
Final sale: no returns
A
Retailer 3
-
£164 GBP
View
A
Retailer 4
-
£176 GBP
View
A
Retailer 5
-
£199 GBP
View
B+
Retailer 6
-
£248 GBP
View
A
Retailer 7
-
£316 GBP
View
B+
Retailer 8
-
£356 GBP
View
B+
Retailer 9
-
£370 GBP
View
B+
Retailer 10
-
£384 GBP
View
B+
Retailer 11
-
£443 GBP
View
B+
Retailer 12
-
£556 GBP
View
B
Retailer 13
-
£573 GBP
View
B
Retailer 14
-
£603 GBP
View
B
Retailer 15
-
£621 GBP
View
B
Retailer 16
-
£817 GBP
View
Most Expensive
B
Reve Diamonds
3CC527F1D · Nov 4
£863 GBP
$1,165 USD
View
16 more retailers have this diamond
Prices start from £141 GBPSave up to £721 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
£141 GBP