Round|Natural|IGI

4.51ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 826681744

Shape and cutting style on the report: Round brilliant

Certificate IGI 826681744

Diamond specifications and retailer prices

From $41,073 USD
₹3,911,741 INR
As of November 1, 2026
Save $33,133 USD (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $74,206 USD at MOH London · As of November 1, 2026
View at MOH London

About this 4.51ct natural round diamond

This 4.51ct 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 826681744. Listed at 4 retailers as of November 1, 2026, with prices from $41,073 to $74,206, a $33,133 spread on the same certified stone. MOH London lists it at $74,206. 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

4.51
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 826681744
Dimensions10.42 × 10.48 × 6.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
10.42 mm10.48 mm4.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 826681744
Side View
Table 56.0%Crown 36.7°Girdle: MED-STKPavilion 41.1°CuletDepth 63.7%

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 1
Current: $74,206 USD|Low: $40,989 USD|High: $83,188 USD|Avg: $59,269 USD|-9.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2$41,073 USD
Retailer 3$48,282 USD
Retailer 4$55,883 USD
MOH London$74,206 USD

45 data points across 4 retailers

4 retailers$41,073 USD to $74,206 USD

A
Cheapest Retailer
-
$41,073 USD
₹3,911,741 INR
A
Retailer 2
-
$48,282 USD
£38,017 GBP
View
A
Retailer 3
-
$55,883 USD
€53,222 EUR
View
Most Expensive
B+
MOH London
DBF66B658 · Nov 1
$74,206 USD
£58,430 GBP
View
3 more retailers have this diamond
Prices start from $41,073 USDSave up to $33,133 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
4.51ct Round
$41,073 USD