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10.03ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG653426153

Shape and cutting style on the report: Round brilliant

Certificate IGI LG653426153

Diamond specifications and retailer prices

From £1,602 GBP
$2,147 USD
As of October 29, 2026
Save £6,383 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £7,986 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.03ct lab-grown round diamond

This 10.03ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG653426153 or 653426153. Listed at 18 retailers as of October 29, 2026, with prices from £1,602 to £7,986, a £6,383 spread on the same certified stone. Brilliant Earth lists it at £7,986. 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

10.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653426153
Dimensions13.86 × 13.77 × 8.42 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
13.86 mm13.77 mm10.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653426153
Side View
Table 59.0%Crown 35°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.9%

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 29
Current: £7,986 GBP|Low: £1,538 GBP|High: £8,269 GBP|Avg: £2,772 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
October 30, 2026
Retailer 10£1,602 GBP
Retailer 2£1,664 GBP
Retailer 5£1,743 GBP
Retailer 6£1,794 GBP
Retailer 7£1,859 GBP
Retailer 11£1,859 GBP
Retailer 4£2,211 GBP
Retailer 16£2,396 GBP
Retailer 9£2,548 GBP
Retailer 14£2,555 GBP
Retailer 15£2,720 GBP
Retailer 3£2,905 GBP
Retailer 12£2,950 GBP
Retailer 8£3,080 GBP
Retailer 13£5,836 GBP
Brilliant Earth£7,986 GBP

43 data points across 16 retailers

18 retailers£1,602 GBP to £7,986 GBP

A
Cheapest Retailer
-
£1,602 GBP
$2,147 USD
A
Retailer 2
-
£1,664 GBP
View
Retailer 3
-
£1,743 GBP
$2,336 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
£1,794 GBP
$2,404 USD
View
Final sale: no returns
A
Retailer 5
-
£1,859 GBP
$2,491 USD
View
Retailer 6
-
£1,859 GBP
$2,491 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
£2,211 GBP
$2,962 USD
View
A
Retailer 8
-
£2,396 GBP
$3,210 USD
View
B+
Retailer 9
-
£2,548 GBP
View
B+
Retailer 10
-
£2,555 GBP
$3,424 USD
View
B+
Retailer 11
-
£2,720 GBP
$3,645 USD
View
Retailer 12
-
£2,905 GBP
$3,893 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
£2,950 GBP
€3,764 EUR
View
Retailer 14
-
£2,982 GBP
$3,995 USD
View
Price last confirmed 16 days ago
B
Retailer 15
-
£5,271 GBP
$7,063 USD
View
B
Retailer 16
-
£5,836 GBP
$7,820 USD
View
B
Retailer 17
-
£6,499 GBP
$8,708 USD
View
Most Expensive
B
Brilliant Earth
20601832A · Oct 29
£7,986 GBP
$10,700 USD
View
17 more retailers have this diamond
Prices start from £1,602 GBPSave up to £6,383 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
10.03ct Round
£1,602 GBP