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5.03ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 541280438

Shape and cutting style on the report: Round brilliant

Certificate IGI 541280438

Diamond specifications and retailer prices

From $43,780 USD
As of October 31, 2026
Save $28,293 USD (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $72,073 USD at MOH London · As of November 1, 2026
View at MOH London

About this 5.03ct natural round diamond

This 5.03ct natural round sits in the over five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 541280438. Listed at 8 retailers as of October 31, 2026, with prices from $43,780 to $72,073, a $28,293 spread on the same certified stone. MOH London lists it at $72,073. 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

5.03
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 541280438
Dimensions11.07 × 11.13 × 6.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
11.07 mm11.13 mm5.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 541280438
Side View
Table 58.5%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.1%

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: $72,073 USD|Low: $42,449 USD|High: $72,940 USD|Avg: $52,991 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$42,449 USD
Retailer 9$43,780 USD
Retailer 11$45,084 USD
Retailer 5$46,162 USD
Retailer 4$50,938 USD
Retailer 3$54,180 USD
Retailer 7$55,183 USD
Retailer 2$55,746 USD
Retailer 10$56,738 USD
Retailer 8$57,306 USD
MOH London$72,073 USD

24 data points across 11 retailers

8 retailers$43,780 USD to $72,073 USD

A
Cheapest Retailer
-
$43,780 USD
A
Retailer 2
-
$46,162 USD
View
A
Retailer 3
-
$50,938 USD
View
Retailer 4
-
$55,183 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
$55,746 USD
€53,091 EUR
View
B+
Retailer 6
-
$56,738 USD
View
Retailer 7
-
$57,306 USD
View
Price last confirmed 32 days ago
Most Expensive
B+
MOH London
A60F920A6 · Nov 1
$72,073 USD
£56,750 GBP
View
7 more retailers have this diamond
Prices start from $43,780 USDSave up to $28,293 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
5.03ct Round
$43,780 USD