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Princess|Lab Grown|IGI

2.50ct I SI1 Princess Lab Grown Diamond

ID • I/SI1 • IGI LG506195903

Shape and cutting style on the report: Princess cut

Certificate IGI LG506195903

Diamond specifications and retailer prices

From £1,062 GBP
As of November 4, 2026
Save £3,251 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,023 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 2.5ct lab-grown princess diamond

This 2.5ct lab-grown princess sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506195903 or 506195903. Listed at 11 retailers as of November 4, 2026, with a 306% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195903
Dimensions7.58 × 7.21 × 5.54 mm
L/W Ratio1.05
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
7.58 mm7.21 mm2.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195903
Side View
Table 61.5%Crown 37.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 76.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £7,023 GBP|Low: £1,062 GBP|High: £9,942 GBP|Avg: £4,162 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 2£1,062 GBP
Retailer 4£2,395 GBP
Retailer 6£2,681 GBP
Retailer 8£2,740 GBP
Retailer 7£2,894 GBP
Retailer 9£3,236 GBP
Retailer 3£3,910 GBP
Retailer 5£4,314 GBP
MOH London£7,023 GBP
Retailer 10£9,942 GBP

14 data points across 10 retailers

11 retailers£1,062 GBP to £4,314 GBP

B+
Cheapest Retailer
-
£1,062 GBP
B
Retailer 2
-
£2,395 GBP
View
B
Retailer 3
-
£2,606 GBP
View
B
Retailer 4
-
£2,681 GBP
View
Final sale: no returns
B
Retailer 5
-
£2,779 GBP
View
Retailer 6
-
£2,779 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£2,894 GBP
View
B
Retailer 8
-
£3,472 GBP
View
B
Retailer 9
-
£3,910 GBP
View
B
Retailer 10
-
£4,314 GBP
View
Most Expensive
MOH London
LG506195903 · Nov 5
£7,023 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £1,062 GBPSave up to £3,251 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+
2.50ct Princess
£1,062 GBP