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Princess|Natural|GIA

1.51ct E SI1 Princess Natural Diamond

EX • E/SI1 • GIA 6552257408

Certificate GIA 6552257408

Diamond specifications and retailer prices

From £3,355 GBP
HK$34,900 HKD
As of October 29, 2026
Save £3,755 GBP (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,736 GBP at NZ Jewellers · As of September 25, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552257408. Listed at 20 retailers as of October 23, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552257408
Dimensions6.18 × 6.18 × 4.43 mm
L/W Ratio1.00
Top View
6.18 mm6.18 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552257408
Side View
Table 71.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 71.6%

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: Oct 29
Current: £4,307 GBP|Low: £3,355 GBP|High: £7,252 GBP|Avg: £4,347 GBP|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 18£3,355 GBP
Retailer 9£3,391 GBP
Retailer 16£3,628 GBP
Retailer 2£3,704 GBP
Retailer 5£3,762 GBP
Retailer 4£3,766 GBP
Retailer 17£3,822 GBP
Retailer 11£3,876 GBP
Retailer 15£3,879 GBP
Retailer 6£4,002 GBP
Retailer 7£4,016 GBP
Retailer 12£4,247 GBP
Retailer 1£4,307 GBP
Retailer 10£4,476 GBP
Retailer 13£4,832 GBP
Retailer 14£5,345 GBP
Retailer 8£6,559 GBP
Retailer 3£7,110 GBP

26 data points across 18 retailers

20 retailers£3,355 GBP to £7,110 GBP

A
Cheapest Retailer
-
£3,355 GBP
HK$34,900 HKD
A
Retailer 2
-
£3,391 GBP
$4,516 USD
View
A
Retailer 3
-
£3,628 GBP
$4,832 USD
View
A
Retailer 4
-
£3,704 GBP
$4,932 USD
View
Final sale: no returns
A
Retailer 5
-
£3,762 GBP
$5,010 USD
View
A
Retailer 6
-
£3,766 GBP
$5,015 USD
View
A
Retailer 7
-
£3,822 GBP
$5,089 USD
View
A
Retailer 8
-
£3,876 GBP
€4,915 EUR
View
A
Retailer 9
-
£3,879 GBP
$5,165 USD
View
A
Retailer 10
-
£4,002 GBP
$5,330 USD
View
A
Retailer 11
-
£4,016 GBP
$5,348 USD
View
A
Retailer 12
-
£4,247 GBP
$5,655 USD
View
A
Retailer 13
-
£4,307 GBP
View
B+
Retailer 14
-
£4,476 GBP
A$9,171 AUD
View
Price last confirmed 20 days ago
B+
Retailer 15
-
£4,739 GBP
A$9,708 AUD
View
B+
Retailer 16
-
£4,832 GBP
€6,128 EUR
View
B+
Retailer 17
-
£5,345 GBP
ZAR 114,995 ZAR
View
Price last confirmed 7 days ago
B+
Retailer 18
-
£6,559 GBP
View
B
Retailer 19
-
£7,110 GBP
$9,468 USD
View
Most Expensive
B
NZ Jewellers
fbd58e11-bf4e-4aef-80d9-dc8113033472 · Sep 25
£7,736 GBP
$10,302 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from £3,355 GBPSave up to £3,755 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
£3,355 GBP