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Princess|Natural|GIA

1.50ct F SI2 Princess Natural Diamond

EX • F/SI2 • GIA 6551365989

Certificate GIA 6551365989

Diamond specifications and retailer prices

From £2,285 GBP
As of November 6, 2026
Save £3,086 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,295 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded F 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 6551365989. Listed at 17 retailers as of November 2, 2026, with a 135% 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

1.50
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551365989
Dimensions6.38 × 6.31 × 4.47 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Indented Natural
Top View
6.38 mm6.31 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551365989
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.8%

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: £6,295 GBP|Low: £2,285 GBP|High: £6,319 GBP|Avg: £3,693 GBP|+1.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7£2,285 GBP
Retailer 2£2,425 GBP
Retailer 9£2,794 GBP
Retailer 3£2,881 GBP
Retailer 6£2,993 GBP
Retailer 5£3,066 GBP
Retailer 8£3,137 GBP
Retailer 4£3,408 GBP
Retailer 10£5,372 GBP
Queensmith£6,295 GBP

36 data points across 10 retailers

17 retailers£2,285 GBP to £5,372 GBP

A
Cheapest Retailer
-
£2,285 GBP
A
Retailer 2
-
£2,425 GBP
View
A
Retailer 3
-
£2,794 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,881 GBP
View
A
Retailer 5
-
£2,993 GBP
View
A
Retailer 6
-
£3,066 GBP
View
A
Retailer 7
-
£3,095 GBP
View
A
Retailer 8
-
£3,137 GBP
View
A
Retailer 9
-
£3,277 GBP
View
Retailer 10
-
£3,373 GBP
View
Price last confirmed 19 days ago
Retailer 11
-
£3,373 GBP
View
Price last confirmed 21 days ago
Retailer 12
-
£3,373 GBP
View
Price last confirmed 22 days ago
A
Retailer 13
-
£3,408 GBP
View
Retailer 14
-
£3,892 GBP
View
Price last confirmed 18 days ago
B+
Retailer 15
-
£5,372 GBP
View
Retailer 16
-
£5,877 GBP
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6551365989 · Oct 28
£6,295 GBP
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from £2,285 GBPSave up to £3,086 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
1.50ct Princess
£2,285 GBP