Round|Natural|IGI

4.20ct I IF Round Natural Diamond

EX • I/IF • IGI 798620748

Shape and cutting style on the report: Round brilliant

Certificate IGI 798620748

Diamond specifications and retailer prices

From $36,518 USD
₹3,477,951 INR
As of October 31, 2026
Save $29,539 USD (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $66,058 USD at MOH London · As of October 26, 2026
View at MOH London

About this 4.2ct natural round diamond

This 4.2ct natural round sits in the three to five carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 798620748. Listed at 4 retailers as of October 26, 2026, with prices from $36,518 to $66,058, a $29,539 spread on the same certified stone. MOH London lists it at $66,058. 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

4.20
Carat
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 798620748
Dimensions10.21 × 10.28 × 6.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
10.21 mm10.28 mm4.20 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 798620748
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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: $66,058 USD|Low: $36,435 USD|High: $69,056 USD|Avg: $50,182 USD|-3.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$36,518 USD
Retailer 2$42,910 USD
Retailer 4$49,657 USD
MOH London$66,058 USD

46 data points across 4 retailers

4 retailers$36,518 USD to $66,058 USD

A
Cheapest Retailer
-
$36,518 USD
₹3,477,951 INR
A
Retailer 2
-
$42,910 USD
£33,787 GBP
View
A
Retailer 3
-
$49,657 USD
€47,292 EUR
View
Most Expensive
A
MOH London
E8C64CC43 · Oct 26
$66,058 USD
£52,014 GBP
View
3 more retailers have this diamond
Prices start from $36,518 USDSave up to $29,539 USD

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
4.20ct Round
$36,518 USD