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Round|Lab Grown|IGI

8.00ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG790646675

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790646675

Diamond specifications and retailer prices

From £715 GBP
$958 USD
As of October 26, 2026
Save £3,487 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,202 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8ct lab-grown round diamond

This 8ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG790646675 or 790646675. Listed at 18 retailers as of October 26, 2026, with prices from £715 to £4,202, a £3,487 spread on the same certified stone. Brilliant Earth lists it at £4,202. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

8.00
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790646675
Dimensions12.77 × 12.86 × 7.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.77 mm12.86 mm8.00 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790646675
Side View
Table 61.0%Crown 33.3°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 60.8%

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 26
Current: £4,202 GBP|Low: £715 GBP|High: £4,209 GBP|Avg: £1,726 GBP|-0.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 9£715 GBP
Retailer 6£778 GBP
Retailer 10£800 GBP
Retailer 4£829 GBP
Retailer 2£936 GBP
Retailer 19£959 GBP
Retailer 16£990 GBP
Retailer 7£1,178 GBP
Retailer 13£1,243 GBP
Retailer 17£1,266 GBP
Retailer 8£1,326 GBP
Retailer 14£1,667 GBP
Retailer 15£1,726 GBP
Retailer 5£2,332 GBP
Retailer 18£2,518 GBP
Retailer 12£2,713 GBP
Retailer 3£2,816 GBP
Retailer 11£3,978 GBP
Brilliant Earth£4,202 GBP

28 data points across 19 retailers

18 retailers£715 GBP to £4,202 GBP

A
Cheapest Retailer
-
£715 GBP
$958 USD
Retailer 2
-
£778 GBP
$1,042 USD
View
Price last confirmed 9 days ago
Retailer 3
-
£829 GBP
$1,111 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£936 GBP
HK$9,800 HKD
View
A
Retailer 5
-
£959 GBP
$1,285 USD
View
A
Retailer 6
-
£990 GBP
View
A
Retailer 7
-
£1,178 GBP
$1,578 USD
View
A
Retailer 8
-
£1,243 GBP
€1,586 EUR
View
A
Retailer 9
-
£1,266 GBP
View
B+
Retailer 10
-
£1,326 GBP
$1,777 USD
View
B+
Retailer 11
-
£1,667 GBP
$2,234 USD
View
B+
Retailer 12
-
£1,726 GBP
A$3,558 AUD
View
Retailer 13
-
£2,332 GBP
$3,124 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
£2,518 GBP
$3,374 USD
View
B
Retailer 15
-
£2,713 GBP
SGD 4,912 SGD
View
Retailer 16
-
£2,816 GBP
View
Price last confirmed 8 days ago
Retailer 17
-
£3,978 GBP
$5,330 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
18675062A · Oct 31
£4,202 GBP
$5,630 USD
View
17 more retailers have this diamond
Prices start from £715 GBPSave up to £3,487 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
8.00ct Round
£715 GBP