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Princess|Lab Grown|IGI

2.50ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG447001256

Shape and cutting style on the report: Princess cut

Certificate IGI LG447001256

Diamond specifications and retailer prices

From £1,563 GBP
As of November 6, 2026
Save £3,342 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,905 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001256 or 447001256. Listed at 9 retailers as of November 5, 2026, with prices from £1,563 to £4,905, a £3,342 spread on the same certified stone. MOH London lists it at £4,905. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.2°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001256
Dimensions7.46 × 7.28 × 5.09 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
7.46 mm7.28 mm2.50 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001256
Side View
Table 73.5%Crown 49.2°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 69.9%

Caratlytics Score

How it works →
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: £4,905 GBP|Low: £1,563 GBP|High: £6,487 GBP|Avg: £3,418 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4£1,563 GBP
Retailer 3£1,935 GBP
Retailer 6£2,325 GBP
Retailer 5£2,835 GBP
Retailer 2£2,907 GBP
MOH London£4,905 GBP
Retailer 7£6,487 GBP

13 data points across 7 retailers

9 retailers£1,563 GBP to £4,905 GBP

A
Cheapest Retailer
-
£1,563 GBP
A
Retailer 2
-
£1,700 GBP
View
A
Retailer 3
-
£1,813 GBP
View
Retailer 4
-
£1,813 GBP
View
Price last confirmed 26 days ago
B+
Retailer 5
-
£1,935 GBP
View
B+
Retailer 6
-
£2,492 GBP
View
B
Retailer 7
-
£2,835 GBP
View
B
Retailer 8
-
£2,907 GBP
View
Most Expensive
B
MOH London
LG447001256 · Nov 5
£4,905 GBP
View
8 more retailers have this diamond
Prices start from £1,563 GBPSave up to £3,342 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
£1,563 GBP