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Round|Natural|IGI

3.50ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 626404235

Shape and cutting style on the report: Round brilliant

Certificate IGI 626404235

Diamond specifications and retailer prices

From £30,838 GBP
$41,320 USD
As of October 25, 2026
Save £6,215 GBP (17%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £55,851 GBP at MOH London · As of October 29, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 626404235. Listed at 6 retailers as of October 25, 2026, with a relatively tight 20% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.9°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 626404235
Dimensions9.82 × 9.75 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.82 mm9.75 mm3.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 626404235
Side View
Table 58.0%Crown 31.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £55,851 GBP|Low: £24,731 GBP|High: £56,224 GBP|Avg: £37,592 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9£24,731 GBP
Retailer 2£30,838 GBP
Retailer 6£31,724 GBP
Retailer 4£32,237 GBP
Retailer 3£32,607 GBP
Retailer 8£37,054 GBP
Retailer 7£44,746 GBP
Retailer 5£48,565 GBP
MOH London£55,851 GBP

13 data points across 9 retailers

6 retailers£30,838 GBP to £37,054 GBP

B
Cheapest Retailer
-
£30,838 GBP
$41,320 USD
B
Retailer 2
-
£32,237 GBP
$43,194 USD
View
B
Retailer 3
-
£32,607 GBP
$43,690 USD
View
Final sale: no returns
B
Retailer 4
-
£37,054 GBP
$49,648 USD
View
Retailer 5
-
£48,565 GBP
View
Price last confirmed 31 days ago
Most Expensive
MOH London
CE7302A6B · Oct 29
£55,851 GBP
View
Price under review
5 more retailers have this diamond
Prices start from £30,838 GBPSave up to £6,215 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
3.50ct Round
£30,838 GBP