CaratHunter
Plans
Round|Lab Grown|IGI

11.15ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG26094750

Certificate IGI LG26094750

Diamond specifications and retailer prices

From £3,288 GBP
CA$6,082 CAD
As of October 30, 2026
Save £2,904 GBP (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £6,192 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 11.15ct lab-grown round diamond

This 11.15ct 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 LG26094750 or 26094750. Listed at 2 retailers as of October 29, 2026, with prices from £3,288 to £6,192, a £2,904 spread on the same certified stone. Blue Nile lists it at £6,192. 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

11.15
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG26094750
Dimensions14.44 × 14.49 × 8.77 mm
L/W Ratio1.00
Top View
14.44 mm14.49 mm11.15 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG26094750
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £6,192 GBP|Low: £1,771 GBP|High: £6,192 GBP|Avg: £3,755 GBP
Blue Nile
Retailer 2
Retailer 3
September 22, 2026
Retailer 2£1,787 GBP
Retailer 3£3,288 GBP
Blue Nile£6,192 GBP

6 data points across 3 retailers

2 retailers£3,288 GBP to £6,192 GBP

B+
Cheapest Retailer
-
£3,288 GBP
CA$6,082 CAD
Most Expensive
B
Blue Nile
16521605 · Oct 29
£6,192 GBP
$8,246 USD
View
1 more retailer has this diamond
Prices start from £3,288 GBPSave up to £2,904 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+
11.15ct Round
£3,288 GBP