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0.26ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG634499491

Shape and cutting style on the report: Round brilliant

Certificate IGI LG634499491

Diamond specifications and retailer prices

From £90 GBP
$120 USD
As of October 28, 2026
Save £200 GBP (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £290 GBP at B2C Jewels · As of October 29, 2026
View at B2C Jewels

About this 0.26ct lab-grown round diamond

This 0.26ct lab-grown round sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634499491 or 634499491. Listed at 6 retailers as of October 28, 2026, with prices from £90 to £290, a £200 spread on the same certified stone. B2C Jewels lists it at £290. 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

0.26
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634499491
Dimensions4.17 × 4.14 × 2.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
4.17 mm4.14 mm0.26 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG634499491
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.1%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: £290 GBP|Low: £84 GBP|High: £290 GBP|Avg: £181 GBP
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 4£90 GBP
Retailer 3£98 GBP
Retailer 2£132 GBP
Retailer 6£188 GBP
Retailer 5£189 GBP
Retailer 7£252 GBP
B2C Jewels£290 GBP

9 data points across 7 retailers

6 retailers£90 GBP to £290 GBP

B+
Cheapest Retailer
-
£90 GBP
$120 USD
Retailer 2
-
£98 GBP
$130 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
£132 GBP
€167 EUR
View
B
Retailer 4
-
£189 GBP
SGD 340 SGD
View
B
Retailer 5
-
£252 GBP
$336 USD
View
Most Expensive
B
B2C Jewels
31239403 · Oct 29
£290 GBP
$386 USD
View
5 more retailers have this diamond
Prices start from £90 GBPSave up to £200 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+
0.26ct Round
£90 GBP