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3.42ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 496106460

Shape and cutting style on the report: Round brilliant

Certificate IGI 496106460

Diamond specifications and retailer prices

From £22,211 GBP
₹2,834,259 INR
As of October 31, 2026
Save £18,135 GBP (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £40,346 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.42ct natural round diamond

This 3.42ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 496106460. Listed at 17 retailers as of October 29, 2026, with prices from £22,211 to £40,346, a £18,135 spread on the same certified stone. MOH London lists it at £40,346. 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

3.42
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 496106460
Dimensions9.54 × 9.60 × 5.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.54 mm9.60 mm3.42 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 496106460
Side View
Table 57.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £40,346 GBP|Low: £22,154 GBP|High: £40,615 GBP|Avg: £28,822 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2£22,211 GBP
Retailer 6£24,509 GBP
Retailer 8£25,658 GBP
Retailer 3£26,086 GBP
Retailer 7£27,517 GBP
Retailer 4£30,178 GBP
Retailer 5£33,134 GBP
MOH London£40,346 GBP

39 data points across 8 retailers

17 retailers£22,211 GBP to £40,346 GBP

A
Cheapest Retailer
-
£22,211 GBP
₹2,834,259 INR
Retailer 2
-
£24,509 GBP
$32,840 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£25,658 GBP
$34,379 USD
View
B+
Retailer 4
-
£25,823 GBP
$34,600 USD
View
B+
Retailer 5
-
£26,000 GBP
$34,837 USD
View
Final sale: no returns
B+
Retailer 6
-
£26,086 GBP
View
Retailer 7
-
£26,766 GBP
$35,864 USD
View
Price last confirmed 40 days ago
B+
Retailer 8
-
£27,517 GBP
$36,870 USD
View
Retailer 9
-
£28,364 GBP
$38,004 USD
View
Price last confirmed 24 days ago
Retailer 10
-
£29,546 GBP
$39,588 USD
View
Price last confirmed 32 days ago
B
Retailer 11
-
£30,178 GBP
€38,510 EUR
View
Retailer 12
-
£30,727 GBP
$41,171 USD
View
Price last confirmed 24 days ago
Retailer 13
-
£30,727 GBP
$41,171 USD
View
Price last confirmed 39 days ago
Retailer 14
-
£31,909 GBP
$42,755 USD
View
Price last confirmed 22 days ago
Retailer 15
-
£31,909 GBP
$42,755 USD
View
Price last confirmed 40 days ago
B
Retailer 16
-
£33,134 GBP
ZAR 717,225 ZAR
View
Most Expensive
B
MOH London
A22168DE2 · Oct 29
£40,346 GBP
View
16 more retailers have this diamond
Prices start from £22,211 GBPSave up to £18,135 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
3.42ct Round
£22,211 GBP