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Princess|Natural|GIA

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 2567125825

Certificate GIA 2567125825

Diamond specifications and retailer prices

From £2,513 GBP
As of November 6, 2026
Save £885 GBP (26%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,398 GBP at GemTrove · As of November 6, 2026
View at GemTrove

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 2567125825. Listed at 9 retailers as of November 6, 2026, with prices from £2,513 to £3,398, a £885 spread on the same certified stone. GemTrove lists it at £3,398. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2567125825
Dimensions6.37 × 6.28 × 4.54 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Natural
Top View
6.37 mm6.28 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2567125825
Side View
Table 71.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 72.2%

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: £2,513 GBP|Low: £2,513 GBP|High: £3,213 GBP|Avg: £2,810 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£2,513 GBP
Retailer 3£2,592 GBP
Retailer 7£2,698 GBP
Retailer 4£2,770 GBP
Retailer 2£2,877 GBP
Retailer 6£2,885 GBP
Retailer 5£3,213 GBP

46 data points across 7 retailers

9 retailers£2,513 GBP to £3,398 GBP

A
Cheapest Retailer
-
£2,513 GBP
Retailer 2
-
£2,592 GBP
View
Price last confirmed 16 days ago
A
Retailer 3
-
£2,698 GBP
View
A
Retailer 4
-
£2,770 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,877 GBP
View
A
Retailer 6
-
£2,885 GBP
View
B+
Retailer 7
-
£3,190 GBP
View
B+
Retailer 8
-
£3,213 GBP
View
Most Expensive
B+
GemTrove
GT-N-01307733-98 · Nov 6
£3,398 GBP
A$6,998 AUD
View
8 more retailers have this diamond
Prices start from £2,513 GBPSave up to £885 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
£2,513 GBP