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Round|Natural|IGI

1.29ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 586339933

Shape and cutting style on the report: Round brilliant

Certificate IGI 586339933

Diamond specifications and retailer prices

From £2,478 GBP
As of November 4, 2026
Save £2,149 GBP (46%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £4,626 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.29ct natural round diamond

This 1.29ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 586339933. Listed at 4 retailers as of November 4, 2026, with prices from £2,478 to £4,626, a £2,149 spread on the same certified stone. MOH London lists it at £4,626. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 586339933
Dimensions6.94 × 6.89 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.94 mm6.89 mm1.29 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 586339933
Side View
Table 58.0%Crown 35.1°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,626 GBP|Low: £2,478 GBP|High: £5,253 GBP|Avg: £3,424 GBP|-10.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£2,478 GBP
Retailer 2£2,888 GBP
Retailer 3£3,225 GBP
MOH London£4,626 GBP

40 data points across 4 retailers

4 retailers£2,478 GBP to £4,626 GBP

A
Cheapest Retailer
-
£2,478 GBP
A
Retailer 2
-
£2,888 GBP
View
A
Retailer 3
-
£3,225 GBP
View
Most Expensive
B
MOH London
2C83D4C22 · Nov 4
£4,626 GBP
View
3 more retailers have this diamond
Prices start from £2,478 GBPSave up to £2,149 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.

A
1.29ct Round
£2,478 GBP