Princess|Natural|GIA

1.71ct K SI1 Princess Natural Diamond

EX • K/SI1 • GIA 6431545272

Certificate GIA 6431545272

Diamond specifications and retailer prices

From £2,400 GBP
As of November 5, 2026
Save £1,757 GBP (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,343 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.71ct natural princess diamond

This 1.71ct 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 6431545272. Listed at 10 retailers as of November 4, 2026, with a 73% 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

1.71
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6431545272
Dimensions6.49 × 6.49 × 4.79 mm
L/W Ratio1.00
Top View
6.49 mm6.49 mm1.71 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6431545272
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 73.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,902 GBP|Low: £2,400 GBP|High: £4,219 GBP|Avg: £3,025 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5£2,400 GBP
Retailer 2£2,579 GBP
Retailer 1£2,902 GBP
Retailer 3£3,043 GBP
Retailer 4£4,157 GBP

45 data points across 5 retailers

10 retailers£2,400 GBP to £4,157 GBP

A
Cheapest Retailer
-
£2,400 GBP
Retailer 2
-
£2,493 GBP
View
Price last confirmed 29 days ago
Retailer 3
-
£2,493 GBP
View
Price last confirmed 29 days ago
A
Retailer 4
-
£2,579 GBP
View
Retailer 5
-
£2,589 GBP
View
Price last confirmed 38 days ago
Retailer 6
-
£2,876 GBP
View
Price last confirmed 38 days ago
B+
Retailer 7
-
£2,902 GBP
View
B+
Retailer 8
-
£3,043 GBP
View
B
Retailer 9
-
£4,157 GBP
View
Most Expensive
NZ Jewellers
b36b7fbc-344f-488d-9f0d-ec59590c4940 · Sep 30
£4,343 GBP
$5,845 USD
View
Price last confirmed 36 days ago
9 more retailers have this diamond
Prices start from £2,400 GBPSave up to £1,757 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
1.71ct Princess
£2,400 GBP