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Heart|Lab Grown|IGI

8.51ct F VS2 Heart Lab Grown Diamond

ID • F/VS2 • IGI LG791624377

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG791624377

Diamond specifications and retailer prices

From £1,221 GBP
HK$12,800 HKD
As of November 1, 2026
Save £4,279 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,500 GBP at Brilliant Earth · As of October 10, 2026
View at Brilliant Earth

About this 8.51ct lab-grown heart diamond

This 8.51ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG791624377 or 791624377. Listed at 11 retailers as of November 1, 2026, with a 350% 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

8.51
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791624377
Dimensions12.65 × 14.54 × 8.00 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.65 mm14.54 mm8.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791624377
Side View
Table 62.0%Crown 35.2°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 55.0%

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: Nov 1
Current: £5,500 GBP|Low: £1,221 GBP|High: £5,671 GBP|Avg: £2,924 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4£1,221 GBP
Retailer 9£1,414 GBP
Retailer 5£1,541 GBP
Retailer 7£1,692 GBP
Retailer 8£1,865 GBP
Retailer 10£3,390 GBP
Retailer 6£3,435 GBP
Retailer 3£3,536 GBP
Retailer 2£5,110 GBP
Brilliant Earth£5,500 GBP

37 data points across 10 retailers

11 retailers£1,221 GBP to £5,500 GBP

A
Cheapest Retailer
-
£1,221 GBP
HK$12,800 HKD
A
Retailer 2
-
£1,414 GBP
$1,897 USD
View
A
Retailer 3
-
£1,541 GBP
View
B+
Retailer 4
-
£1,692 GBP
$2,271 USD
View
A
Retailer 5
-
£1,865 GBP
$2,503 USD
View
B
Retailer 6
-
£3,390 GBP
$4,549 USD
View
B+
Retailer 7
-
£3,435 GBP
View
B
Retailer 8
-
£3,536 GBP
SGD 6,413 SGD
View
B
Retailer 9
-
£5,110 GBP
$6,857 USD
View
B
Retailer 10
-
£5,500 GBP
$7,380 USD
View
Most Expensive
Brilliant Earth
20471832A · Oct 10
£5,500 GBP
$7,380 USD
View
Price last confirmed 22 days ago
10 more retailers have this diamond
Prices start from £1,221 GBPSave up to £4,279 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
8.51ct Heart
£1,221 GBP