CaratHunter
Plans
Round|Lab Grown|IGI

10.01ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG666411209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG666411209

Diamond specifications and retailer prices

From £10,303 GBP
€13,147 EUR
As of October 29, 2026
Save £1,027 GBP (9%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £11,329 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.01ct lab-grown round diamond

This 10.01ct 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 LG666411209 or 666411209. Listed at 3 retailers as of October 29, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

10.01
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666411209
Dimensions13.71 × 13.80 × 8.62 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
13.71 mm13.80 mm10.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666411209
Side View
Table 54.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £11,329 GBP|Low: £4,303 GBP|High: £21,281 GBP|Avg: £9,215 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
October 29, 2026
Retailer 4£4,303 GBP
Retailer 8£4,362 GBP
Retailer 5£4,974 GBP
Retailer 9£6,288 GBP
Retailer 6£7,150 GBP
Retailer 10£7,309 GBP
Retailer 12£7,654 GBP
Retailer 11£7,954 GBP
Retailer 2£10,303 GBP
Brilliant Earth£11,329 GBP
Retailer 7£17,612 GBP
Retailer 3£21,281 GBP

17 data points across 12 retailers

3 retailers£10,303 GBP to £11,329 GBP

Retailer 1
-
£4,974 GBP
$6,665 USD
Price last confirmed 12 days ago
B
Retailer 2
-
£10,303 GBP
€13,147 EUR
View
Most Expensive
B
Brilliant Earth
12331466A · Oct 29
£11,329 GBP
$15,180 USD
View
2 more retailers have this diamond
Prices start from £10,303 GBPSave up to £1,027 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.

B
10.01ct Round
£10,303 GBP