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Princess|Natural|GIA

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 5533515047

Certificate GIA 5533515047

Diamond specifications and retailer prices

From £3,197 GBP
As of November 4, 2026
Save £3,165 GBP (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,362 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5533515047. Listed at 15 retailers as of November 2, 2026, with prices from £3,197 to £6,362, a £3,165 spread on the same certified stone. NZ Jewellers lists it at £6,362. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.08°
Pavilion angle38.98°
OriginNatural
Grading LabGIA
CertificateGIA 5533515047
Dimensions6.59 × 6.42 × 4.40 mm
L/W Ratio1.03
Top View
6.59 mm6.42 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5533515047
Side View
Table 74.0%Crown 40.08°Girdle: MED-STKPavilion 38.98°Culet: NoneDepth 68.6%

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 4
Current: £6,362 GBP|Low: £3,197 GBP|High: £6,362 GBP|Avg: £4,591 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 6£3,197 GBP
Retailer 8£3,673 GBP
Retailer 2£3,796 GBP
Retailer 5£3,833 GBP
Retailer 4£4,090 GBP
Retailer 7£5,559 GBP
Retailer 3£6,042 GBP
NZ Jewellers£6,362 GBP

42 data points across 8 retailers

15 retailers£3,197 GBP to £6,362 GBP

A
Cheapest Retailer
-
£3,197 GBP
A
Retailer 2
-
£3,285 GBP
View
A
Retailer 3
-
£3,285 GBP
View
B+
Retailer 4
-
£3,538 GBP
View
B+
Retailer 5
-
£3,664 GBP
View
Retailer 6
-
£3,673 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£3,796 GBP
View
B+
Retailer 8
-
£3,833 GBP
View
B+
Retailer 9
-
£3,907 GBP
View
B+
Retailer 10
-
£3,907 GBP
View
B+
Retailer 11
-
£4,034 GBP
View
B+
Retailer 12
-
£4,090 GBP
View
B
Retailer 13
-
£5,559 GBP
View
B
Retailer 14
-
£6,042 GBP
View
Most Expensive
B
NZ Jewellers
723ea92a-c27c-4109-a731-a4a2f4267a39 · Nov 2
£6,362 GBP
$8,515 USD
View
14 more retailers have this diamond
Prices start from £3,197 GBPSave up to £3,165 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
£3,197 GBP