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Radiant|Natural|IGI

1.21ct G SI1 Radiant Natural Diamond

GD • G/SI1 • IGI 224642925

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 224642925

Diamond specifications and retailer prices

From £2,584 GBP
As of November 5, 2026
Save £760 GBP (23%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,344 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 224642925. Listed at 2 retailers as of November 5, 2026, with prices from £2,584 to £3,344, a £760 spread on the same certified stone. 77 Diamonds lists it at £3,344. 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
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 224642925
Dimensions5.85 × 5.43 × 3.95 mm
L/W Ratio1.08
Culet sizePointed
Top View
5.85 mm5.43 mm1.21 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 224642925
Side View
Table 67.5%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.7%

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: £3,344 GBP|Low: £2,584 GBP|High: £3,686 GBP|Avg: £3,206 GBP|+1.8%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 2£2,584 GBP
77 Diamonds£3,344 GBP
Retailer 3£3,686 GBP

35 data points across 3 retailers

2 retailers£2,584 GBP to £3,344 GBP

B
Cheapest Retailer
-
£2,584 GBP
Most Expensive
C
77 Diamonds
RADPUIFSRFQYKPBG · Nov 7
£3,344 GBP
View
1 more retailer has this diamond
Prices start from £2,584 GBPSave up to £760 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 Radiant
£2,584 GBP