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Round|Natural|GIA

0.40ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6422874640

Certificate GIA 6422874640

Diamond specifications and retailer prices

From $278 AUD
₹18,613 INR
As of November 1, 2026
Save $1,524 AUD (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,802 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 GIA 6422874640. Listed at 9 retailers as of October 30, 2026, with prices from $278 to $1,802, a $1,524 spread on the same certified stone. NZ Jewellers lists it at $1,802. 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
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6422874640
Dimensions4.68 × 4.72 × 2.95 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.68 mm4.72 mm0.40 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6422874640
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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: $1,802 AUD|Low: $278 AUD|High: $1,802 AUD|Avg: $635 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$278 AUD
Retailer 7$397 AUD
Retailer 5$420 AUD
Retailer 9$429 AUD
Retailer 4$444 AUD
Retailer 8$535 AUD
Retailer 6$621 AUD
Retailer 3$668 AUD
NZ Jewellers$1,802 AUD

44 data points across 9 retailers

9 retailers$278 AUD to $1,802 AUD

A
Cheapest Retailer
-
$278 AUD
₹18,613 INR
B+
Retailer 2
-
$346 AUD
HK$1,900 HKD
View
B+
Retailer 3
-
$397 AUD
$279 USD
View
B+
Retailer 4
-
$429 AUD
$301 USD
View
B+
Retailer 5
-
$444 AUD
$312 USD
View
B+
Retailer 6
-
$535 AUD
$376 USD
View
B
Retailer 7
-
$621 AUD
$436 USD
View
B+
Retailer 8
-
$668 AUD
€447 EUR
View
Most Expensive
C
NZ Jewellers
c5db5f0c-dfb3-47be-94c7-3925bf208e32 · Oct 30
$1,802 AUD
$1,266 USD
View
8 more retailers have this diamond
Prices start from $278 AUDSave up to $1,524 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
0.40ct Round
$278 AUD