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Round|Lab Grown|IGI

8.00ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG613382957

Shape and cutting style on the report: Round brilliant

Certificate IGI LG613382957

Diamond specifications and retailer prices

From £723 GBP
$970 USD
As of November 1, 2026
Save £3,152 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,875 GBP at Brilliant Earth · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG613382957 or 613382957. Listed at 15 retailers as of November 1, 2026, with prices from £723 to £3,875, a £3,152 spread on the same certified stone. Brilliant Earth lists it at £3,875. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613382957
Dimensions13.00 × 12.95 × 7.80 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
13.00 mm12.95 mm8.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613382957
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.1%

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: Nov 1
Current: £3,875 GBP|Low: £723 GBP|High: £3,994 GBP|Avg: £1,693 GBP|-3.0%
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
November 2, 2026
Retailer 3£723 GBP
Retailer 11£786 GBP
Retailer 4£838 GBP
Retailer 14£838 GBP
Retailer 13£852 GBP
Retailer 6£1,241 GBP
Retailer 8£1,288 GBP
Retailer 5£1,341 GBP
Retailer 10£1,341 GBP
Retailer 2£1,376 GBP
Retailer 12£1,807 GBP
Retailer 15£2,357 GBP
Retailer 9£2,843 GBP
Retailer 7£3,271 GBP
Brilliant Earth£3,875 GBP

39 data points across 15 retailers

15 retailers£723 GBP to £3,875 GBP

A
Cheapest Retailer
-
£723 GBP
$970 USD
A
Retailer 2
-
£786 GBP
$1,055 USD
View
A
Retailer 3
-
£838 GBP
$1,125 USD
View
Retailer 4
-
£838 GBP
$1,125 USD
View
Price last confirmed 22 days ago
Retailer 5
-
£852 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
£1,241 GBP
$1,666 USD
View
B+
Retailer 7
-
£1,288 GBP
View
B+
Retailer 8
-
£1,341 GBP
$1,799 USD
View
B+
Retailer 9
-
£1,341 GBP
$1,800 USD
View
B+
Retailer 10
-
£1,376 GBP
€1,758 EUR
View
B+
Retailer 11
-
£1,807 GBP
$2,425 USD
View
B
Retailer 12
-
£2,357 GBP
$3,163 USD
View
B
Retailer 13
-
£2,843 GBP
View
B
Retailer 14
-
£3,271 GBP
$4,390 USD
View
Most Expensive
B
Brilliant Earth
8905072A · Nov 2
£3,875 GBP
$5,200 USD
View
14 more retailers have this diamond
Prices start from £723 GBPSave up to £3,152 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
£723 GBP