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Round|Natural|IGI

5.51ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 774673280

Shape and cutting style on the report: Round brilliant

Certificate IGI 774673280

Diamond specifications and retailer prices

From $56,867 AUD
₹3,804,404 INR
As of October 31, 2026
Save $42,227 AUD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $99,095 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 5.51ct natural round diamond

This 5.51ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 774673280. Listed at 15 retailers as of October 29, 2026, with prices from $56,867 to $99,095, a $42,227 spread on the same certified stone. MOH London lists it at $99,095. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 774673280
Dimensions11.24 × 11.30 × 7.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
11.24 mm11.30 mm5.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 774673280
Side View
Table 57.0%Crown 36.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: $99,095 AUD|Low: $56,738 AUD|High: $99,755 AUD|Avg: $70,759 AUD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 2$56,867 AUD
Retailer 14$61,599 AUD
Retailer 4$62,358 AUD
Retailer 6$63,858 AUD
Retailer 13$65,742 AUD
Retailer 15$67,220 AUD
Retailer 3$67,413 AUD
Retailer 7$67,712 AUD
Retailer 9$69,664 AUD
Retailer 10$72,567 AUD
Retailer 11$75,469 AUD
Retailer 8$76,776 AUD
Retailer 5$77,592 AUD
Retailer 12$78,372 AUD
MOH London$99,095 AUD

36 data points across 15 retailers

15 retailers$56,867 AUD to $99,095 AUD

A
Cheapest Retailer
-
$56,867 AUD
₹3,804,404 INR
Retailer 2
-
$61,599 AUD
$43,270 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$62,358 AUD
$43,803 USD
View
A
Retailer 4
-
$63,858 AUD
$44,857 USD
View
Final sale: no returns
A
Retailer 5
-
$65,742 AUD
$46,180 USD
View
A
Retailer 6
-
$67,220 AUD
SGD 63,809 SGD
View
Retailer 7
-
$67,413 AUD
£37,286 GBP
View
Price last confirmed 31 days ago
A
Retailer 8
-
$67,712 AUD
$47,564 USD
View
A
Retailer 9
-
$69,664 AUD
$48,935 USD
View
B+
Retailer 10
-
$72,567 AUD
$50,974 USD
View
B+
Retailer 11
-
$75,469 AUD
$53,013 USD
View
A
Retailer 12
-
$76,776 AUD
€51,363 EUR
View
B+
Retailer 13
-
$77,592 AUD
$54,504 USD
View
B+
Retailer 14
-
$78,372 AUD
$55,052 USD
View
Most Expensive
B+
MOH London
02C834C4E · Oct 29
$99,095 AUD
£54,810 GBP
View
14 more retailers have this diamond
Prices start from $56,867 AUDSave up to $42,227 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
$56,867 AUD