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Round|Lab Grown|IGI

1.33ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG442069320

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442069320

Diamond specifications and retailer prices

From £499 GBP
As of November 5, 2026
Save £1,929 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,428 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442069320 or 442069320. Listed at 10 retailers as of November 5, 2026, with prices from £499 to £2,428, a £1,929 spread on the same certified stone. MOH London lists it at £2,428. 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

1.33
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442069320
Dimensions7.16 × 7.20 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.16 mm7.20 mm1.33 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442069320
Side View
Table 58.5%Crown 31.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.8%

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 5
Current: £2,428 GBP|Low: £398 GBP|High: £2,468 GBP|Avg: £1,006 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4£499 GBP
Retailer 2£557 GBP
Retailer 7£558 GBP
Retailer 5£578 GBP
Retailer 8£578 GBP
Retailer 9£932 GBP
Retailer 6£941 GBP
Retailer 10£1,293 GBP
Retailer 3£1,476 GBP
MOH London£2,428 GBP

19 data points across 10 retailers

10 retailers£499 GBP to £2,428 GBP

A
Cheapest Retailer
-
£499 GBP
A
Retailer 2
-
£542 GBP
View
A
Retailer 3
-
£557 GBP
View
A
Retailer 4
-
£558 GBP
View
Final sale: no returns
A
Retailer 5
-
£578 GBP
View
Retailer 6
-
£578 GBP
View
Price last confirmed 21 days ago
B
Retailer 7
-
£941 GBP
View
B
Retailer 8
-
£1,476 GBP
View
B
Retailer 9
-
£1,625 GBP
View
Most Expensive
B
MOH London
LG442069320 · Nov 5
£2,428 GBP
View
9 more retailers have this diamond
Prices start from £499 GBPSave up to £1,929 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
1.33ct Round
£499 GBP