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Heart|Lab Grown|IGI

1.09ct F VVS1 Heart Lab Grown Diamond

EX • F/VVS1 • IGI LG781608949

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG781608949

Diamond specifications and retailer prices

From £247 GBP
As of November 6, 2026
Save £373 GBP (60%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £641 GBP at Novita Diamonds · As of October 25, 2026
View at Novita Diamonds

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781608949 or 781608949. Listed at 4 retailers as of November 6, 2026, with a 151% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781608949
Dimensions6.31 × 7.14 × 4.17 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.31 mm7.14 mm1.09 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781608949
Side View
Table 58.0%Crown 35.3°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 58.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £641 GBP|Low: £247 GBP|High: £858 GBP|Avg: £498 GBP|+1.7%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 28, 2026
Retailer 3£247 GBP
Retailer 5£300 GBP
Retailer 2£365 GBP
Retailer 6£456 GBP
Retailer 4£619 GBP
Novita Diamonds£641 GBP
Retailer 7£858 GBP

5 data points across 7 retailers

4 retailers£247 GBP to £619 GBP

A
Cheapest Retailer
-
£247 GBP
B+
Retailer 2
-
£365 GBP
View
B
Retailer 3
-
£619 GBP
View
Most Expensive
Novita Diamonds
cert_781608949 · Oct 25
£641 GBP
A$1,320 AUD
View
Price last confirmed 12 days ago
3 more retailers have this diamond
Prices start from £247 GBPSave up to £373 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
1.09ct Heart
£247 GBP