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Radiant|Natural|IGI

1.40ct K SI1 Radiant Natural Diamond

GD • K/SI1 • IGI 234651792

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

Certificate IGI 234651792

Diamond specifications and retailer prices

From £1,865 GBP
As of November 5, 2026
Save £655 GBP (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,520 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.4ct natural radiant diamond

This 1.4ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 234651792. Listed at 3 retailers as of November 5, 2026, with prices from £1,865 to £2,520, a £655 spread on the same certified stone. Yorxs lists it at £2,520. 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

1.40
Carat
K
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 234651792
Dimensions7.08 × 5.46 × 3.85 mm
L/W Ratio1.30
Culet sizePointed
Top View
7.08 mm5.46 mm1.40 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 234651792
Side View
Table 72.5%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.5%

Caratlytics Score

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

Last verified: Nov 5
Current: £2,418 GBP|Low: £1,865 GBP|High: £2,749 GBP|Avg: £2,283 GBP|+2.0%
Retailer 1
Retailer 2
Yorxs
November 7, 2026
Retailer 2£1,865 GBP
Retailer 1£2,418 GBP
Yorxs£2,520 GBP

42 data points across 3 retailers

3 retailers£1,865 GBP to £2,520 GBP

B+
Cheapest Retailer
-
£1,865 GBP
B
Retailer 2
-
£2,418 GBP
View
Most Expensive
B
Yorxs
BN4550 · Nov 6
£2,520 GBP
€3,212 EUR
View
2 more retailers have this diamond
Prices start from £1,865 GBPSave up to £655 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+
1.40ct Radiant
£1,865 GBP