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Princess|Natural|GIA

1.20ct K SI1 Princess Natural Diamond

EX • K/SI1 • GIA 2456418545

Certificate GIA 2456418545

Diamond specifications and retailer prices

From £1,022 GBP
As of November 6, 2026
Save £2,321 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,343 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-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 2456418545. Listed at 15 retailers as of November 2, 2026, with prices from £1,022 to £3,343, a £2,321 spread on the same certified stone. NZ Jewellers lists it at £3,343. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2456418545
Dimensions5.50 × 5.42 × 4.52 mm
L/W Ratio1.01
Top View
5.50 mm5.42 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2456418545
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 83.3%

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 6
Current: £3,343 GBP|Low: £1,022 GBP|High: £3,343 GBP|Avg: £1,649 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2£1,022 GBP
Retailer 4£1,334 GBP
Retailer 7£1,370 GBP
Retailer 10£1,370 GBP
Retailer 9£1,434 GBP
Retailer 3£1,487 GBP
Retailer 8£1,581 GBP
Retailer 6£1,668 GBP
Retailer 5£1,864 GBP
NZ Jewellers£3,343 GBP

31 data points across 10 retailers

15 retailers£1,022 GBP to £3,343 GBP

A
Cheapest Retailer
-
£1,022 GBP
B+
Retailer 2
-
£1,248 GBP
View
B+
Retailer 3
-
£1,271 GBP
View
B+
Retailer 4
-
£1,311 GBP
View
B+
Retailer 5
-
£1,334 GBP
View
Retailer 6
-
£1,370 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,370 GBP
View
B+
Retailer 8
-
£1,412 GBP
View
B+
Retailer 9
-
£1,434 GBP
View
B+
Retailer 10
-
£1,487 GBP
View
B
Retailer 11
-
£1,581 GBP
View
Retailer 12
-
£1,581 GBP
View
Price last confirmed 16 days ago
Retailer 13
-
£1,668 GBP
View
Price last confirmed 11 days ago
B
Retailer 14
-
£1,864 GBP
View
Most Expensive
C
NZ Jewellers
a9769b45-48c6-4102-b21c-1b48ed182b8c · Nov 2
£3,343 GBP
$4,499 USD
View
14 more retailers have this diamond
Prices start from £1,022 GBPSave up to £2,321 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
1.20ct Princess
£1,022 GBP