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Princess|Natural|IGI

1.00ct M SI1 Princess Natural Diamond

VG • M/SI1 • IGI 286719197

Shape and cutting style on the report: Rectangular princess

Certificate IGI 286719197

Diamond specifications and retailer prices

From £409 GBP
As of November 4, 2026
Save £222 GBP (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £631 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1ct natural princess diamond

This 1ct natural princess sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 286719197. Listed at 3 retailers as of November 4, 2026, with prices from £409 to £631, a £222 spread on the same certified stone. Yorxs lists it at £631. 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

1.00
Carat
M
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.4°
Pavilion angle42.2°
OriginNatural
Grading LabIGI
CertificateIGI 286719197
Dimensions5.81 × 5.09 × 4.07 mm
L/W Ratio1.14
Culet sizePointed
Top View
5.81 mm5.09 mm1.00 ctM / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 286719197
Side View
Table 76.5%Crown 34.4°Girdle: MediumPavilion 42.2°Culet: NoneDepth 80.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £409 GBP|Low: £409 GBP|High: £728 GBP|Avg: £609 GBP|-13.4%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 6, 2026
Retailer 1£409 GBP
Retailer 2£566 GBP
Yorxs£631 GBP
Retailer 3£728 GBP

18 data points across 4 retailers

3 retailers£409 GBP to £631 GBP

B+
Cheapest Retailer
-
£409 GBP
B+
Retailer 2
-
£566 GBP
View
Most Expensive
B+
Yorxs
727 · Nov 6
£631 GBP
€809 EUR
View
2 more retailers have this diamond
Prices start from £409 GBPSave up to £222 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+
1.00ct Princess
£409 GBP