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Princess|Natural|GIA

1.51ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 6565155424

Certificate GIA 6565155424

Diamond specifications and retailer prices

From £3,014 GBP
As of November 6, 2026
Save £817 GBP (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,831 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565155424. Listed at 8 retailers as of November 5, 2026, with prices from £3,014 to £3,831, a £817 spread on the same certified stone. Blue Nile lists it at £3,831. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565155424
Dimensions6.20 × 6.02 × 4.63 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.20 mm6.02 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565155424
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 76.9%

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: £3,831 GBP|Low: £2,798 GBP|High: £3,862 GBP|Avg: £3,361 GBP|-0.8%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 4£3,014 GBP
Retailer 5£3,097 GBP
Retailer 3£3,221 GBP
Retailer 6£3,331 GBP
Retailer 2£3,393 GBP
Retailer 7£3,482 GBP
Blue Nile£3,831 GBP

46 data points across 7 retailers

8 retailers£3,014 GBP to £3,831 GBP

A
Cheapest Retailer
-
£3,014 GBP
A
Retailer 2
-
£3,097 GBP
View
A
Retailer 3
-
£3,221 GBP
View
A
Retailer 4
-
£3,331 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,393 GBP
View
A
Retailer 6
-
£3,482 GBP
View
B+
Retailer 7
-
£3,808 GBP
View
Most Expensive
B+
Blue Nile
30112509 · Nov 5
£3,831 GBP
$5,128 USD
View
7 more retailers have this diamond
Prices start from £3,014 GBPSave up to £817 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
£3,014 GBP