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Round|Lab Grown|IGI

3.26ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • IGI LG655421897

Shape and cutting style on the report: Round brilliant

Certificate IGI LG655421897

Diamond specifications and retailer prices

From £259 GBP
$345 USD
As of October 29, 2026
Save £1,002 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,261 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.26ct lab-grown round diamond

This 3.26ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG655421897 or 655421897. Listed at 11 retailers as of October 29, 2026, with prices from £259 to £1,261, a £1,002 spread on the same certified stone. MOH London lists it at £1,261. 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

3.26
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655421897
Dimensions9.53 × 9.49 × 5.86 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.53 mm9.49 mm3.26 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655421897
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,261 GBP|Low: £259 GBP|High: £3,089 GBP|Avg: £1,147 GBP
MOH London
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
October 29, 2026
Retailer 2£259 GBP
Retailer 3£300 GBP
Retailer 10£321 GBP
Retailer 11£356 GBP
Retailer 8£395 GBP
Retailer 7£516 GBP
Retailer 13£517 GBP
Retailer 9£565 GBP
Retailer 12£719 GBP
Retailer 14£1,032 GBP
MOH London£1,261 GBP
Retailer 4£1,515 GBP
Retailer 6£2,854 GBP
Retailer 5£3,089 GBP

3 data points across 14 retailers

11 retailers£259 GBP to £1,261 GBP

A
Cheapest Retailer
-
£259 GBP
$345 USD
A
Retailer 2
-
£300 GBP
$400 USD
View
A
Retailer 3
-
£321 GBP
$427 USD
View
A
Retailer 4
-
£356 GBP
HK$3,700 HKD
View
A
Retailer 5
-
£395 GBP
View
A
Retailer 6
-
£516 GBP
€654 EUR
View
B+
Retailer 7
-
£517 GBP
$688 USD
View
A
Retailer 8
-
£565 GBP
$753 USD
View
A
Retailer 9
-
£719 GBP
$957 USD
View
B+
Retailer 10
-
£1,032 GBP
$1,374 USD
View
Most Expensive
B+
MOH London
LG655421897 · Oct 29
£1,261 GBP
View
10 more retailers have this diamond
Prices start from £259 GBPSave up to £1,002 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
3.26ct Round
£259 GBP