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Princess|Natural|GIA

1.51ct I SI2 Princess Natural Diamond

ID • I/SI2 • GIA 5231741661

Certificate GIA 5231741661

Diamond specifications and retailer prices

From £2,831 GBP
As of November 6, 2026
Save £2,598 GBP (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,429 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231741661. Listed at 8 retailers as of November 4, 2026, with prices from £2,831 to £5,429, a £2,598 spread on the same certified stone. MOH London lists it at £5,429. 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

1.51
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5231741661
Dimensions6.12 × 6.11 × 4.55 mm
L/W Ratio1.00
Top View
6.12 mm6.11 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231741661
Side View
Table 72.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 74.5%

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 6
Current: £5,429 GBP|Low: £2,788 GBP|High: £5,509 GBP|Avg: £3,742 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£2,831 GBP
Retailer 5£3,163 GBP
Retailer 3£3,365 GBP
Retailer 2£3,846 GBP
MOH London£5,429 GBP

41 data points across 5 retailers

8 retailers£2,831 GBP to £5,429 GBP

A
Cheapest Retailer
-
£2,831 GBP
A
Retailer 2
-
£3,163 GBP
View
B+
Retailer 3
-
£3,355 GBP
View
B+
Retailer 4
-
£3,355 GBP
View
A
Retailer 5
-
£3,365 GBP
View
B+
Retailer 6
-
£3,467 GBP
View
B+
Retailer 7
-
£3,846 GBP
View
Most Expensive
B
MOH London
00E3EA893 · Nov 4
£5,429 GBP
View
7 more retailers have this diamond
Prices start from £2,831 GBPSave up to £2,598 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
1.51ct Princess
£2,831 GBP