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Heart|Lab Grown|IGI

1.22ct F VVS1 Heart Lab Grown Diamond

VG • F/VVS1 • IGI LGG1198102

Certificate IGI LGG1198102

Diamond specifications and retailer prices

From £154 GBP
As of November 6, 2026
Save £581 GBP (79%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £735 GBP at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

About this 1.22ct lab-grown heart diamond

This 1.22ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LGG1198102. Listed at 5 retailers as of November 6, 2026, with prices from £154 to £735, a £581 spread on the same certified stone. Taylor and Hart lists it at £735. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.22
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGG1198102
Dimensions6.91 × 7.50 × 4.21 mm
L/W Ratio1.09
Top View
6.91 mm7.50 mm1.22 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LGG1198102
Side View
Table 58.5%CrownGirdle: MED-UNDPavilionCulet: NoneDepth 56.1%

Caratlytics Score

How it works →
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 6
Current: £342 GBP|Low: £154 GBP|High: £735 GBP|Avg: £408 GBP|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 6, 2026
Retailer 4£154 GBP
Retailer 1£342 GBP
Retailer 3£356 GBP
Retailer 2£459 GBP
Taylor and Hart£735 GBP

42 data points across 5 retailers

5 retailers£154 GBP to £735 GBP

A
Cheapest Retailer
-
£154 GBP
Final sale: no returns
B+
Retailer 2
-
£342 GBP
View
B+
Retailer 3
-
£356 GBP
View
B+
Retailer 4
-
£459 GBP
View
Most Expensive
B
Taylor and Hart
SC1K2L9 · Nov 6
£735 GBP
$983 USD
View
4 more retailers have this diamond
Prices start from £154 GBPSave up to £581 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
£154 GBP