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Round|Natural|IGI

5.51ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 825617680

Certificate IGI 825617680

Diamond specifications and retailer prices

From $56,902 AUD
₹3,806,714 INR
As of November 1, 2026
Save $20,481 AUD (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $77,383 AUD at Yorxs · As of November 1, 2026
View at Yorxs

About this 5.51ct natural round diamond

This 5.51ct 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 825617680. Listed at 2 retailers as of November 1, 2026, with prices from $56,902 to $77,383, a $20,481 spread on the same certified stone. Yorxs lists it at $77,383. 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

5.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 825617680
Dimensions11.27 × 11.35 × 7.01 mm
L/W Ratio1.01
Top View
11.27 mm11.35 mm5.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825617680
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 61.9%

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: Nov 1
Current: $56,902 AUD|Low: $56,769 AUD|High: $77,929 AUD|Avg: $67,074 AUD|-1.0%
Retailer 1
Yorxs
November 1, 2026
Retailer 1$56,902 AUD
Yorxs$77,383 AUD

46 data points across 2 retailers

2 retailers$56,902 AUD to $77,383 AUD

A
Cheapest Retailer
-
$56,902 AUD
₹3,806,714 INR
Most Expensive
B+
Yorxs
25206 · Nov 1
$77,383 AUD
€51,769 EUR
View
1 more retailer has this diamond
Prices start from $56,902 AUDSave up to $20,481 AUD

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
5.51ct Round
$56,902 AUD