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Round|Natural|IGI

3.50ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 790691806

Shape and cutting style on the report: Round brilliant

Certificate IGI 790691806

Diamond specifications and retailer prices

From £25,890 GBP
A$53,368 AUD
As of October 31, 2026
Save £4,140 GBP (14%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £38,873 GBP at MOH London · As of October 8, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 790691806. Listed at 6 retailers as of October 30, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

3.50
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 790691806
Dimensions9.58 × 9.64 × 6.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
9.58 mm9.64 mm3.50 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 790691806
Side View
Table 56.0%Crown 36.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.4%

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: Oct 31
Current: £38,873 GBP|Low: £22,235 GBP|High: £38,976 GBP|Avg: £27,349 GBP|+0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4£22,478 GBP
Retailer 6£24,384 GBP
Retailer 7£24,781 GBP
Retailer 8£25,890 GBP
Retailer 5£27,219 GBP
Retailer 2£27,986 GBP
Retailer 3£30,029 GBP
MOH London£38,873 GBP

29 data points across 8 retailers

6 retailers£25,890 GBP to £30,029 GBP

Retailer 1
-
£24,781 GBP
$33,204 USD
Price last confirmed 25 days ago
A
Retailer 2
-
£25,890 GBP
A$53,368 AUD
View
Retailer 3
-
£27,219 GBP
$36,470 USD
View
Price last confirmed 23 days ago
A
Retailer 4
-
£27,986 GBP
View
A
Retailer 5
-
£30,029 GBP
€38,320 EUR
View
Most Expensive
MOH London
9C8BB10FC · Oct 8
£38,873 GBP
View
Price last confirmed 23 days ago
5 more retailers have this diamond
Prices start from £25,890 GBPSave up to £4,140 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
3.50ct Round
£25,890 GBP