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Princess|Natural|GIA

1.51ct E SI2 Princess Natural Diamond

EX • E/SI2 • GIA 6535589520

Certificate GIA 6535589520

Diamond specifications and retailer prices

From £2,444 GBP
As of November 4, 2026
Save £3,074 GBP (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £6,299 GBP at Queensmith · As of October 28, 2026
View at Queensmith

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 6535589520. Listed at 22 retailers as of November 4, 2026, with a 126% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535589520
Dimensions6.16 × 6.15 × 4.44 mm
L/W Ratio1.00
Top View
6.16 mm6.15 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6535589520
Side View
Table 73.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.1%

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: £6,299 GBP|Low: £2,444 GBP|High: £6,317 GBP|Avg: £3,863 GBP|-0.3%
Queensmith
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
November 6, 2026
Retailer 17£2,444 GBP
Retailer 13£2,598 GBP
Retailer 3£2,924 GBP
Retailer 12£2,966 GBP
Retailer 10£3,027 GBP
Retailer 14£3,077 GBP
Retailer 2£3,078 GBP
Retailer 5£3,167 GBP
Retailer 7£3,167 GBP
Retailer 15£3,208 GBP
Retailer 18£3,277 GBP
Retailer 4£3,367 GBP
Retailer 9£3,396 GBP
Retailer 11£3,565 GBP
Retailer 8£3,655 GBP
Retailer 16£5,282 GBP
Retailer 6£5,518 GBP
Queensmith£6,299 GBP

23 data points across 18 retailers

22 retailers£2,444 GBP to £5,518 GBP

A
Cheapest Retailer
-
£2,444 GBP
A
Retailer 2
-
£2,598 GBP
View
A
Retailer 3
-
£2,924 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,966 GBP
View
A
Retailer 5
-
£3,027 GBP
View
A
Retailer 6
-
£3,077 GBP
View
A
Retailer 7
-
£3,078 GBP
View
A
Retailer 8
-
£3,167 GBP
View
A
Retailer 9
-
£3,167 GBP
View
A
Retailer 10
-
£3,182 GBP
View
A
Retailer 11
-
£3,208 GBP
View
A
Retailer 12
-
£3,277 GBP
View
A
Retailer 13
-
£3,365 GBP
View
A
Retailer 14
-
£3,367 GBP
View
Retailer 15
-
£3,396 GBP
View
Price last confirmed 8 days ago
Retailer 16
-
£3,396 GBP
View
Price last confirmed 19 days ago
A
Retailer 17
-
£3,565 GBP
View
A
Retailer 18
-
£3,655 GBP
View
Retailer 19
-
£3,919 GBP
View
Price last confirmed 18 days ago
B+
Retailer 20
-
£5,282 GBP
View
B+
Retailer 21
-
£5,518 GBP
View
Most Expensive
Queensmith
6535589520 · Oct 28
£6,299 GBP
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from £2,444 GBPSave up to £3,074 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
£2,444 GBP