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Round|Lab Grown|IGI

1.33ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG436046062

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436046062

Diamond specifications and retailer prices

From £543 GBP
As of November 5, 2026
Save £1,930 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,473 GBP at MOH London · As of November 1, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046062 or 436046062. Listed at 10 retailers as of November 1, 2026, with prices from £543 to £2,473, a £1,930 spread on the same certified stone. MOH London lists it at £2,473. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046062
Dimensions7.10 × 7.03 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.10 mm7.03 mm1.33 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046062
Side View
Table 58.5%Crown 32.4°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.5%

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: £2,473 GBP|Low: £521 GBP|High: £2,502 GBP|Avg: £1,037 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5£543 GBP
Retailer 2£557 GBP
Retailer 8£608 GBP
Retailer 6£630 GBP
Retailer 9£630 GBP
Retailer 11£760 GBP
Retailer 10£996 GBP
Retailer 7£1,020 GBP
Retailer 3£1,409 GBP
Retailer 4£1,551 GBP
MOH London£2,473 GBP

13 data points across 11 retailers

10 retailers£543 GBP to £2,473 GBP

A
Cheapest Retailer
-
£543 GBP
A
Retailer 2
-
£557 GBP
View
A
Retailer 3
-
£591 GBP
View
A
Retailer 4
-
£608 GBP
View
Final sale: no returns
B+
Retailer 5
-
£630 GBP
View
Retailer 6
-
£630 GBP
View
Price last confirmed 25 days ago
B+
Retailer 7
-
£1,020 GBP
View
B
Retailer 8
-
£1,551 GBP
View
B
Retailer 9
-
£1,771 GBP
View
Most Expensive
B
MOH London
LG436046062 · Nov 1
£2,473 GBP
View
9 more retailers have this diamond
Prices start from £543 GBPSave up to £1,930 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
£543 GBP