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Princess|Natural|GIA

1.51ct K SI1 Princess Natural Diamond

EX • K/SI1 • GIA 7526579397

Certificate GIA 7526579397

Diamond specifications and retailer prices

From £2,836 GBP
As of November 6, 2026
Save £1,120 GBP (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,956 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7526579397. Listed at 7 retailers as of November 6, 2026, with prices from £2,836 to £3,956, a £1,120 spread on the same certified stone. Yorxs lists it at £3,956. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle24.14°
Pavilion angle39.19°
OriginNatural
Grading LabGIA
CertificateGIA 7526579397
Dimensions6.39 × 6.29 × 4.42 mm
L/W Ratio1.02
Culet sizeNone
Top View
6.39 mm6.29 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7526579397
Side View
Table 73.0%Crown 24.14°Girdle: ThickPavilion 39.19°Culet: NoneDepth 70.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,894 GBP|Low: £2,836 GBP|High: £3,979 GBP|Avg: £3,235 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 6, 2026
Retailer 3£2,836 GBP
Retailer 1£2,894 GBP
Retailer 6£2,910 GBP
Retailer 4£2,976 GBP
Retailer 5£3,553 GBP
Retailer 2£3,566 GBP
Yorxs£3,956 GBP

22 data points across 7 retailers

7 retailers£2,836 GBP to £3,956 GBP

B+
Cheapest Retailer
-
£2,836 GBP
B+
Retailer 2
-
£2,894 GBP
View
B+
Retailer 3
-
£2,910 GBP
View
B+
Retailer 4
-
£2,976 GBP
View
B
Retailer 5
-
£3,553 GBP
View
B
Retailer 6
-
£3,566 GBP
View
Most Expensive
B
Yorxs
507864583 · Nov 6
£3,956 GBP
€5,071 EUR
View
6 more retailers have this diamond
Prices start from £2,836 GBPSave up to £1,120 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.

B+
1.51ct Princess
£2,836 GBP