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Princess|Lab Grown|IGI

2.31ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG451055501

Shape and cutting style on the report: Princess cut

Certificate IGI LG451055501

Diamond specifications and retailer prices

From £1,446 GBP
As of November 6, 2026
Save £3,330 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,776 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 2.31ct lab-grown princess diamond

This 2.31ct lab-grown princess sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055501 or 451055501. Listed at 9 retailers as of November 5, 2026, with prices from £1,446 to £4,776, a £3,330 spread on the same certified stone. MOH London lists it at £4,776. 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

2.31
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055501
Dimensions7.27 × 7.25 × 5.03 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
7.27 mm7.25 mm2.31 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055501
Side View
Table 72.0%Crown 44.7°Girdle: MediumPavilion 38.2°Culet: NoneDepth 69.4%

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: Nov 6
Current: £4,776 GBP|Low: £1,446 GBP|High: £6,001 GBP|Avg: £3,213 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4£1,446 GBP
Retailer 2£1,802 GBP
Retailer 6£2,163 GBP
Retailer 5£2,625 GBP
Retailer 3£2,754 GBP
MOH London£4,776 GBP
Retailer 7£6,001 GBP

18 data points across 7 retailers

9 retailers£1,446 GBP to £4,776 GBP

A
Cheapest Retailer
-
£1,446 GBP
A
Retailer 2
-
£1,573 GBP
View
A
Retailer 3
-
£1,677 GBP
View
Retailer 4
-
£1,677 GBP
View
Price last confirmed 26 days ago
A
Retailer 5
-
£1,802 GBP
View
B+
Retailer 6
-
£2,305 GBP
View
B+
Retailer 7
-
£2,625 GBP
View
B+
Retailer 8
-
£2,754 GBP
View
Most Expensive
B
MOH London
LG451055501 · Nov 5
£4,776 GBP
View
8 more retailers have this diamond
Prices start from £1,446 GBPSave up to £3,330 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
2.31ct Princess
£1,446 GBP