Round|Natural|IGI

6.05ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 819639937

Shape and cutting style on the report: Round brilliant

Certificate IGI 819639937

Diamond specifications and retailer prices

From $44,674 AUD
SGD 42,407 SGD
As of October 29, 2026
Save $31,186 AUD (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $75,861 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 6.05ct natural round diamond

This 6.05ct 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 819639937. Listed at 8 retailers as of October 29, 2026, with prices from $44,674 to $75,861, a $31,186 spread on the same certified stone. MOH London lists it at $75,861. 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

6.05
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 819639937
Dimensions11.49 × 11.57 × 7.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
11.49 mm11.57 mm6.05 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 819639937
Side View
Table 57.0%Crown 36.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.2%

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: $75,861 AUD|Low: $50,329 AUD|High: $98,068 AUD|Avg: $66,699 AUD|-17.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$50,329 AUD
Retailer 4$53,214 AUD
Retailer 3$55,553 AUD
Retailer 6$57,271 AUD
Retailer 5$57,775 AUD
Retailer 2$59,848 AUD
MOH London$75,861 AUD

36 data points across 7 retailers

8 retailers$44,674 AUD to $75,861 AUD

A
Cheapest Retailer
-
$44,674 AUD
SGD 42,407 SGD
Retailer 2
-
$50,329 AUD
$35,353 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$53,214 AUD
£29,433 GBP
View
A
Retailer 4
-
$55,553 AUD
$39,023 USD
View
A
Retailer 5
-
$57,271 AUD
$40,230 USD
View
A
Retailer 6
-
$57,775 AUD
$40,584 USD
View
A
Retailer 7
-
$59,848 AUD
€40,038 EUR
View
Most Expensive
A
MOH London
3FD417B98 · Oct 29
$75,861 AUD
£41,959 GBP
View
7 more retailers have this diamond
Prices start from $44,674 AUDSave up to $31,186 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
6.05ct Round
$44,674 AUD