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Round|Lab Grown|IGI

8.03ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG588377670

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588377670

Diamond specifications and retailer prices

From £725 GBP
$973 USD
As of November 1, 2026
Save £3,165 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,890 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.03ct lab-grown round diamond

This 8.03ct 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 LG588377670 or 588377670. Listed at 14 retailers as of October 31, 2026, with prices from £725 to £3,890, a £3,165 spread on the same certified stone. Brilliant Earth lists it at £3,890. 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

8.03
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588377670
Dimensions12.87 × 12.83 × 7.89 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.87 mm12.83 mm8.03 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588377670
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.4%

Caratlytics Score

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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: £3,890 GBP|Low: £581 GBP|High: £4,009 GBP|Avg: £1,536 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
Retailer 16
November 2, 2026
Retailer 7£581 GBP
Retailer 3£725 GBP
Retailer 11£789 GBP
Retailer 4£841 GBP
Retailer 14£841 GBP
Retailer 13£855 GBP
Retailer 5£1,245 GBP
Retailer 2£1,293 GBP
Retailer 6£1,327 GBP
Retailer 15£1,360 GBP
Retailer 10£1,378 GBP
Retailer 16£1,577 GBP
Retailer 12£1,813 GBP
Retailer 9£2,869 GBP
Retailer 8£3,295 GBP
Brilliant Earth£3,890 GBP

23 data points across 16 retailers

14 retailers£725 GBP to £3,890 GBP

A
Cheapest Retailer
-
£725 GBP
$973 USD
A
Retailer 2
-
£789 GBP
$1,059 USD
View
A
Retailer 3
-
£841 GBP
$1,129 USD
View
Retailer 4
-
£841 GBP
$1,129 USD
View
Price last confirmed 23 days ago
Retailer 5
-
£855 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
£1,245 GBP
$1,671 USD
View
B+
Retailer 7
-
£1,293 GBP
View
B+
Retailer 8
-
£1,360 GBP
$1,825 USD
View
B+
Retailer 9
-
£1,378 GBP
€1,761 EUR
View
B+
Retailer 10
-
£1,577 GBP
$2,116 USD
View
B+
Retailer 11
-
£1,813 GBP
$2,433 USD
View
B
Retailer 12
-
£2,869 GBP
View
B
Retailer 13
-
£3,295 GBP
$4,422 USD
View
Most Expensive
B
Brilliant Earth
7682199A · Oct 31
£3,890 GBP
$5,220 USD
View
13 more retailers have this diamond
Prices start from £725 GBPSave up to £3,165 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
8.03ct Round
£725 GBP