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5.25ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 553232528

Shape and cutting style on the report: Round brilliant

Certificate IGI 553232528

Diamond specifications and retailer prices

From $46,769 USD
As of October 29, 2026
Save $26,863 USD (36%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $73,632 USD at MOH London · As of October 29, 2026
View at MOH London

About this 5.25ct natural round diamond

This 5.25ct 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 553232528. Listed at 3 retailers as of October 29, 2026, with prices from $46,769 to $73,632, a $26,863 spread on the same certified stone. MOH London lists it at $73,632. 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

5.25
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 553232528
Dimensions11.02 × 11.07 × 6.93 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
11.02 mm11.07 mm5.25 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 553232528
Side View
Table 57.5%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.8%

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 29
Current: $73,632 USD|Low: $46,203 USD|High: $74,122 USD|Avg: $58,888 USD|+0.4%
MOH London
Retailer 2
Retailer 3
October 29, 2026
Retailer 3$46,769 USD
Retailer 2$56,812 USD
MOH London$73,632 USD

18 data points across 3 retailers

3 retailers$46,769 USD to $73,632 USD

A
Cheapest Retailer
-
$46,769 USD
A
Retailer 2
-
$56,812 USD
€54,107 EUR
View
Most Expensive
B+
MOH London
BF5410D15 · Oct 29
$73,632 USD
£57,978 GBP
View
2 more retailers have this diamond
Prices start from $46,769 USDSave up to $26,863 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
5.25ct Round
$46,769 USD