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Round|Lab Grown|IGI

11.26ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG819645754

Certificate IGI LG819645754

Diamond specifications and retailer prices

From £2,092 GBP
$2,803 USD
As of November 1, 2026
Save £2,973 GBP (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £5,065 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 11.26ct lab-grown round diamond

This 11.26ct 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 LG819645754 or 819645754. Listed at 4 retailers as of October 31, 2026, with prices from £2,092 to £5,065, a £2,973 spread on the same certified stone. Adiamor lists it at £5,065. 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

11.26
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG819645754
Dimensions14.42 × 14.55 × 8.74 mm
L/W Ratio1.01
Top View
14.42 mm14.55 mm11.26 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819645754
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.3%

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: Nov 1
Current: £5,065 GBP|Low: £1,937 GBP|High: £5,065 GBP|Avg: £2,515 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 5£1,937 GBP
Retailer 4£2,092 GBP
Retailer 3£2,135 GBP
Retailer 2£2,482 GBP
Adiamor£5,065 GBP

8 data points across 5 retailers

4 retailers£2,092 GBP to £5,065 GBP

B+
Cheapest Retailer
-
£2,092 GBP
$2,803 USD
A
Retailer 2
-
£2,135 GBP
$2,860 USD
View
B+
Retailer 3
-
£2,482 GBP
€3,167 EUR
View
Most Expensive
B
Adiamor
D-82720076 · Oct 31
£5,065 GBP
$6,787 USD
View
3 more retailers have this diamond
Prices start from £2,092 GBPSave up to £2,973 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
11.26ct Round
£2,092 GBP