CaratHunter
Plans
Heart|Lab Grown|IGI

6.55ct F VVS2 Heart Lab Grown Diamond

EX • F/VVS2 • IGI LG805667367

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG805667367

Diamond specifications and retailer prices

From £825 GBP
$1,106 USD
As of October 30, 2026
Save £4,585 GBP (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £5,411 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.55ct lab-grown heart diamond

This 6.55ct 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 LG805667367 or 805667367. Listed at 23 retailers as of October 30, 2026, with prices from £825 to £5,411, a £4,585 spread on the same certified stone. Brilliant Earth lists it at £5,411. 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

6.55
Carat
F
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805667367
Dimensions11.72 × 13.11 × 7.64 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.72 mm13.11 mm6.55 ctF / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805667367
Side View
Table 63.0%Crown 35.7°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 58.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £5,411 GBP|Low: £813 GBP|High: £5,411 GBP|Avg: £2,187 GBP
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 7£825 GBP
Retailer 4£898 GBP
Retailer 16£957 GBP
Retailer 6£1,086 GBP
Retailer 8£1,108 GBP
Retailer 18£1,253 GBP
Retailer 3£1,370 GBP
Retailer 2£1,387 GBP
Retailer 15£1,719 GBP
Retailer 14£1,774 GBP
Retailer 20£1,794 GBP
Retailer 17£1,852 GBP
Retailer 5£2,323 GBP
Retailer 19£2,771 GBP
Retailer 11£3,080 GBP
Retailer 9£3,208 GBP
Retailer 12£3,347 GBP
Retailer 10£3,463 GBP
Retailer 13£3,949 GBP
Brilliant Earth£5,411 GBP

33 data points across 20 retailers

23 retailers£825 GBP to £5,411 GBP

A
Cheapest Retailer
-
£825 GBP
$1,106 USD
A
Retailer 2
-
£898 GBP
$1,203 USD
View
A
Retailer 3
-
£957 GBP
$1,282 USD
View
Retailer 4
-
£974 GBP
$1,305 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
£1,086 GBP
$1,455 USD
View
A
Retailer 6
-
£1,108 GBP
HK$11,600 HKD
View
A
Retailer 7
-
£1,253 GBP
$1,679 USD
View
B+
Retailer 8
-
£1,370 GBP
$1,835 USD
View
A
Retailer 9
-
£1,387 GBP
View
A
Retailer 10
-
£1,719 GBP
$2,303 USD
View
B+
Retailer 11
-
£1,774 GBP
A$3,656 AUD
View
B+
Retailer 12
-
£1,794 GBP
$2,404 USD
View
Retailer 13
-
£1,802 GBP
$2,415 USD
View
Price last confirmed 13 days ago
B+
Retailer 14
-
£1,852 GBP
ZAR 40,090 ZAR
View
B+
Retailer 15
-
£2,323 GBP
$3,113 USD
View
B+
Retailer 16
-
£2,771 GBP
$3,713 USD
View
B+
Retailer 17
-
£2,831 GBP
$3,793 USD
View
B+
Retailer 18
-
£3,080 GBP
View
B+
Retailer 19
-
£3,208 GBP
SGD 5,808 SGD
View
B
Retailer 20
-
£3,347 GBP
$4,484 USD
View
B
Retailer 21
-
£3,463 GBP
$4,640 USD
View
B
Retailer 22
-
£3,949 GBP
A$8,140 AUD
View
Most Expensive
B
Brilliant Earth
19917992A · Oct 31
£5,411 GBP
$7,250 USD
View
22 more retailers have this diamond
Prices start from £825 GBPSave up to £4,585 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
6.55ct Heart
£825 GBP