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Radiant|Natural|IGI

0.86ct I SI1 Radiant Natural Diamond

GD • I/SI1 • IGI 329864821

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

Certificate IGI 329864821

Diamond specifications and retailer prices

From £1,159 GBP
€1,479 EUR
As of October 29, 2026
Save £9 GBP (1%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,168 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.86ct natural radiant diamond

This 0.86ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 329864821. Listed at 2 retailers as of October 29, 2026, with a relatively tight 1% 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

0.86
Carat
I
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 329864821
Dimensions5.53 × 4.71 × 3.49 mm
L/W Ratio1.17
Culet sizePointed
Top View
5.53 mm4.71 mm0.86 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 329864821
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 74.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £1,168 GBP|Low: £1,124 GBP|High: £1,180 GBP|Avg: £1,160 GBP|+1.5%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2£1,159 GBP
77 Diamonds£1,168 GBP

35 data points across 2 retailers

2 retailers£1,159 GBP to £1,168 GBP

B
Cheapest Retailer
-
£1,159 GBP
€1,479 EUR
Most Expensive
B
77 Diamonds
RADZQBXSKVUF · Nov 1
£1,168 GBP
View
1 more retailer has this diamond
Prices start from £1,159 GBPSave up to £9 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
0.86ct Radiant
£1,159 GBP