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Princess|Natural|IGI

1.20ct K SI1 Princess Natural Diamond

VG • K/SI1 • IGI 257749441

Shape and cutting style on the report: Princess cut

Certificate IGI 257749441

Diamond specifications and retailer prices

From £884 GBP
As of November 6, 2026
Save £709 GBP (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,593 GBP at MOH London · As of November 4, 2026
View at MOH London

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 very-good cut grade and certified by IGI 257749441. Listed at 4 retailers as of November 4, 2026, with prices from £884 to £1,593, a £709 spread on the same certified stone. MOH London lists it at £1,593. 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

1.20
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryGood
FluorescenceFaint
Crown angle23.5°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 257749441
Dimensions6.29 × 6.23 × 4.07 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.29 mm6.23 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceFaint
CertificateIGI 257749441
Side View
Table 74.0%Crown 23.5°Girdle: ETN-THNPavilion 40.1°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,593 GBP|Low: £884 GBP|High: £1,886 GBP|Avg: £1,271 GBP|-14.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£884 GBP
Retailer 3£995 GBP
Retailer 2£1,214 GBP
MOH London£1,593 GBP

39 data points across 4 retailers

4 retailers£884 GBP to £1,593 GBP

B+
Cheapest Retailer
-
£884 GBP
B+
Retailer 2
-
£995 GBP
View
B+
Retailer 3
-
£1,214 GBP
View
Most Expensive
B
MOH London
AF72544E0 · Nov 4
£1,593 GBP
View
3 more retailers have this diamond
Prices start from £884 GBPSave up to £709 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+
1.20ct Princess
£884 GBP