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Princess|Natural|GIA

1.51ct E SI2 Princess Natural Diamond

ID • E/SI2 • GIA 6555315445

Certificate GIA 6555315445

Diamond specifications and retailer prices

From £3,191 GBP
As of November 4, 2026
Save £2,948 GBP (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,139 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555315445. Listed at 8 retailers as of November 2, 2026, with prices from £3,191 to £6,139, a £2,948 spread on the same certified stone. NZ Jewellers lists it at £6,139. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.14°
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 6555315445
Dimensions6.49 × 6.34 × 4.46 mm
L/W Ratio1.02
Girdle conditionSlightly Thick
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
6.49 mm6.34 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555315445
Side View
Table 75.0%Crown 38.14°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 70.2%

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 4
Current: £6,139 GBP|Low: £2,857 GBP|High: £6,139 GBP|Avg: £3,653 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 9£2,857 GBP
Retailer 8£3,121 GBP
Retailer 7£3,191 GBP
Retailer 5£3,320 GBP
Retailer 3£3,524 GBP
Retailer 4£3,524 GBP
Retailer 2£3,623 GBP
Retailer 10£3,685 GBP
Retailer 6£5,612 GBP
NZ Jewellers£6,139 GBP

12 data points across 10 retailers

8 retailers£3,191 GBP to £6,139 GBP

Retailer 1
-
£2,857 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£3,191 GBP
View
A
Retailer 3
-
£3,320 GBP
View
A
Retailer 4
-
£3,524 GBP
View
A
Retailer 5
-
£3,524 GBP
View
A
Retailer 6
-
£3,623 GBP
View
B+
Retailer 7
-
£5,612 GBP
View
Most Expensive
B
NZ Jewellers
7f41d51a-0d83-47be-9003-d33fc72972ea · Nov 2
£6,139 GBP
$8,263 USD
View
7 more retailers have this diamond
Prices start from £3,191 GBPSave up to £2,948 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
£3,191 GBP