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Princess|Natural|GIA

1.21ct K SI2 Princess Natural Diamond

EX • K/SI2 • GIA 1236961321

Certificate GIA 1236961321

Diamond specifications and retailer prices

From £1,211 GBP
As of November 1, 2026
Save £1,428 GBP (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,158 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236961321. Listed at 10 retailers as of November 1, 2026, with a 118% 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

1.21
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryFair
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1236961321
Dimensions5.73 × 5.70 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.73 mm5.70 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryFair
FluorescenceFaint
CertificateGIA 1236961321
Side View
Table 71.0%CrownGirdle: MED-ETHPavilionCulet: NoneDepth 74.3%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £2,051 GBP|Low: £1,187 GBP|High: £2,678 GBP|Avg: £1,676 GBP|+9.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£1,187 GBP
Retailer 6£1,211 GBP
Retailer 9£1,247 GBP
Retailer 7£1,369 GBP
Retailer 8£1,375 GBP
Retailer 11£1,583 GBP
Retailer 4£1,641 GBP
Retailer 10£1,804 GBP
Retailer 1£2,051 GBP
Retailer 2£2,175 GBP
Retailer 5£2,639 GBP

39 data points across 11 retailers

10 retailers£1,211 GBP to £2,639 GBP

B+
Cheapest Retailer
-
£1,211 GBP
B+
Retailer 2
-
£1,247 GBP
View
Retailer 3
-
£1,369 GBP
View
Price last confirmed 45 days ago
Retailer 4
-
£1,369 GBP
View
Price last confirmed 13 days ago
B+
Retailer 5
-
£1,375 GBP
View
Retailer 6
-
£1,579 GBP
View
Price last confirmed 43 days ago
B
Retailer 7
-
£1,641 GBP
View
B
Retailer 8
-
£2,051 GBP
View
B
Retailer 9
-
£2,639 GBP
View
Most Expensive
NZ Jewellers
0f2f4812-b546-47b4-a844-ca89ce82d733 · Sep 25
£3,158 GBP
$4,251 USD
View
Price last confirmed 41 days ago
9 more retailers have this diamond
Prices start from £1,211 GBPSave up to £1,428 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+
1.21ct Princess
£1,211 GBP