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Heart|Lab Grown|IGI

3.09ct F VS2 Heart Lab Grown Diamond

ID • F/VS2 • IGI LG851661726

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG851661726

Diamond specifications and retailer prices

From £655 GBP
As of October 30, 2026
Save £895 GBP (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,184 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.09ct lab-grown heart diamond

This 3.09ct lab-grown heart sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851661726 or 851661726. Listed at 8 retailers as of October 30, 2026, with a 137% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851661726
Dimensions9.20 × 10.44 × 5.63 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.20 mm10.44 mm3.09 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851661726
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 53.9%

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: Oct 30
Current: £2,184 GBP|Low: £466 GBP|High: £2,184 GBP|Avg: £1,027 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8£466 GBP
Retailer 6£521 GBP
Retailer 2£539 GBP
Retailer 5£655 GBP
Retailer 4£893 GBP
Retailer 7£1,360 GBP
Retailer 3£1,551 GBP
Brilliant Earth£2,184 GBP

2 data points across 8 retailers

8 retailers£655 GBP to £1,551 GBP

Retailer 1
-
£466 GBP
Price last confirmed 7 days ago
Retailer 2
-
£521 GBP
View
Price last confirmed 7 days ago
Retailer 3
-
£539 GBP
View
Price last confirmed 6 days ago
A
Retailer 4
-
£655 GBP
View
A
Retailer 5
-
£893 GBP
View
Retailer 6
-
£1,360 GBP
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£1,551 GBP
View
Most Expensive
Brilliant Earth
22359901A · Oct 30
£2,184 GBP
$2,940 USD
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from £655 GBPSave up to £895 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
3.09ct Heart
£655 GBP