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Round|Natural|IGI

0.40ct J I1 Round Natural Diamond

EX • J/I1 • IGI 510177065

Shape and cutting style on the report: Round brilliant

Certificate IGI 510177065

Diamond specifications and retailer prices

From $306 AUD
$215 USD
As of October 31, 2026
Save $1,083 AUD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,389 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 510177065. Listed at 7 retailers as of October 30, 2026, with prices from $306 to $1,389, a $1,083 spread on the same certified stone. NZ Jewellers lists it at $1,389. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 510177065
Dimensions4.61 × 4.66 × 2.94 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.61 mm4.66 mm0.40 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 510177065
Side View
Table 58.0%Crown 36.3°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $535 AUD|Low: $309 AUD|High: $535 AUD|Avg: $426 AUD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2$312 AUD
Retailer 3$406 AUD
Retailer 4$463 AUD
Retailer 1$535 AUD

19 data points across 4 retailers

7 retailers$306 AUD to $1,389 AUD

B+
Cheapest Retailer
-
$306 AUD
$215 USD
B+
Retailer 2
-
$330 AUD
$232 USD
View
B+
Retailer 3
-
$342 AUD
$240 USD
View
B+
Retailer 4
-
$406 AUD
$285 USD
View
B+
Retailer 5
-
$413 AUD
$290 USD
View
B+
Retailer 6
-
$535 AUD
€358 EUR
View
Most Expensive
C
NZ Jewellers
e6c7950f-36fd-4622-b926-cc5a4e9f2f4e · Oct 30
$1,389 AUD
$976 USD
View
6 more retailers have this diamond
Prices start from $306 AUDSave up to $1,083 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.

B+
0.40ct Round
$306 AUD