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Princess|Natural|IGI

1.21ct F SI2 Princess Natural Diamond

VG • F/SI2 • IGI 845619263

Shape and cutting style on the report: Princess cut

Certificate IGI 845619263

Diamond specifications and retailer prices

From £1,160 GBP
As of November 6, 2026
Save £919 GBP (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,079 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 845619263. Listed at 7 retailers as of November 6, 2026, with prices from £1,160 to £2,079, a £919 spread on the same certified stone. Helzberg Diamonds lists it at £2,079. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.4°
Pavilion angle38.3°
OriginNatural
Grading LabIGI
CertificateIGI 845619263
Dimensions5.74 × 5.64 × 4.20 mm
L/W Ratio1.02
Top View
5.74 mm5.64 mm1.21 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 845619263
Side View
Table 72.0%Crown 49.4°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 74.5%

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: £2,079 GBP|Low: £1,160 GBP|High: £2,229 GBP|Avg: £1,618 GBP|-6.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£1,160 GBP
Retailer 6£1,193 GBP
Retailer 4£1,225 GBP
Retailer 7£1,259 GBP
Retailer 5£1,546 GBP
Retailer 3£1,959 GBP
Helzberg Diamonds£2,079 GBP

9 data points across 7 retailers

7 retailers£1,160 GBP to £2,079 GBP

A
Cheapest Retailer
-
£1,160 GBP
A
Retailer 2
-
£1,193 GBP
View
A
Retailer 3
-
£1,225 GBP
View
A
Retailer 4
-
£1,259 GBP
View
A
Retailer 5
-
£1,546 GBP
View
B+
Retailer 6
-
£1,959 GBP
View
Most Expensive
B+
Helzberg Diamonds
ZXZOKLMHPIMJ · Nov 6
£2,079 GBP
$2,783 USD
View
6 more retailers have this diamond
Prices start from £1,160 GBPSave up to £919 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
1.21ct Princess
£1,160 GBP