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Heart|Lab Grown|IGI

6.57ct F VVS2 Heart Lab Grown Diamond

EX • F/VVS2 • IGI LG847655152

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG847655152

Diamond specifications and retailer prices

From £891 GBP
$1,195 USD
As of November 1, 2026
Save £4,527 GBP (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,418 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 6.57ct lab-grown heart diamond

This 6.57ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG847655152 or 847655152. Listed at 3 retailers as of November 1, 2026, with prices from £891 to £5,418, a £4,527 spread on the same certified stone. Brilliant Earth lists it at £5,418. 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

6.57
Carat
F
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847655152
Dimensions12.05 × 13.12 × 7.42 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.05 mm13.12 mm6.57 ctF / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847655152
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 56.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £5,418 GBP|Low: £891 GBP|High: £5,418 GBP|Avg: £2,903 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£891 GBP
Retailer 2£1,358 GBP
Brilliant Earth£5,418 GBP

10 data points across 3 retailers

3 retailers£891 GBP to £5,418 GBP

A
Cheapest Retailer
-
£891 GBP
$1,195 USD
Final sale: no returns
A
Retailer 2
-
£1,358 GBP
View
Most Expensive
B
Brilliant Earth
22236450A · Nov 2
£5,418 GBP
$7,270 USD
View
2 more retailers have this diamond
Prices start from £891 GBPSave up to £4,527 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
6.57ct Heart
£891 GBP