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Princess|Lab Grown|IGI

2.50ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG447001242

Shape and cutting style on the report: Princess cut

Certificate IGI LG447001242

Diamond specifications and retailer prices

From £1,090 GBP
$1,460 USD
As of October 31, 2026
Save £5,381 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,471 GBP at MOH London · As of October 29, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001242 or 447001242. Listed at 12 retailers as of October 29, 2026, with prices from £1,090 to £6,471, a £5,381 spread on the same certified stone. MOH London lists it at £6,471. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001242
Dimensions7.63 × 7.35 × 5.00 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
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Top View
7.63 mm7.35 mm2.50 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001242
Side View
Table 75.0%Crown 43.6°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 68.0%

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: Oct 31
Current: £6,471 GBP|Low: £1,090 GBP|High: £9,088 GBP|Avg: £3,536 GBP|-0.5%
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 30, 2026
Retailer 2£1,090 GBP
Retailer 9£2,189 GBP
Retailer 14£2,382 GBP
Retailer 3£2,451 GBP
Retailer 10£2,540 GBP
Retailer 13£2,540 GBP
Retailer 4£2,657 GBP
Retailer 5£3,067 GBP
Retailer 12£3,173 GBP
Retailer 7£3,561 GBP
Retailer 8£3,649 GBP
Retailer 11£3,949 GBP
MOH London£6,471 GBP
Retailer 6£9,088 GBP

29 data points across 14 retailers

12 retailers£1,090 GBP to £6,471 GBP

A
Cheapest Retailer
-
£1,090 GBP
$1,460 USD
B+
Retailer 2
-
£2,189 GBP
$2,933 USD
View
B+
Retailer 3
-
£2,382 GBP
$3,191 USD
View
B+
Retailer 4
-
£2,451 GBP
$3,284 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,540 GBP
$3,403 USD
View
Retailer 6
-
£2,540 GBP
$3,403 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
£2,657 GBP
$3,560 USD
View
B
Retailer 8
-
£3,173 GBP
$4,252 USD
View
B
Retailer 9
-
£3,561 GBP
View
B
Retailer 10
-
£3,649 GBP
$4,889 USD
View
B
Retailer 11
-
£3,949 GBP
$5,291 USD
View
Most Expensive
B
MOH London
LG447001242 · Oct 29
£6,471 GBP
View
11 more retailers have this diamond
Prices start from £1,090 GBPSave up to £5,381 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
2.50ct Princess
£1,090 GBP