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Princess|Natural|IGI

1.21ct I SI2 Princess Natural Diamond

GD • I/SI2 • IGI 189574302

Shape and cutting style on the report: Princess cut

Certificate IGI 189574302

Diamond specifications and retailer prices

From £2,034 GBP
As of November 5, 2026
Save £223 GBP (10%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,257 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 189574302. Listed at 2 retailers as of November 5, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
I
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle58.3°
Pavilion angle36.7°
OriginNatural
Grading LabIGI
CertificateIGI 189574302
Dimensions5.50 × 5.46 × 4.35 mm
L/W Ratio1.01
Culet sizePointed
Top View
5.50 mm5.46 mm1.21 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 189574302
Side View
Table 68.0%Crown 58.3°GirdlePavilion 36.7°Culet: NoneDepth 79.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £2,034 GBP|Low: £2,034 GBP|High: £2,258 GBP|Avg: £2,174 GBP
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£2,034 GBP
Retailer 2£2,247 GBP
Yorxs£2,257 GBP

10 data points across 3 retailers

2 retailers£2,034 GBP to £2,257 GBP

B
Cheapest Retailer
-
£2,034 GBP
Most Expensive
C
Yorxs
BN0975 · Nov 6
£2,257 GBP
€2,877 EUR
View
1 more retailer has this diamond
Prices start from £2,034 GBPSave up to £223 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
£2,034 GBP