CaratHunter
Plans
Oval|Natural|GIA

0.40ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7488072215

Certificate GIA 7488072215

Diamond specifications and retailer prices

From $504 AUD
$354 USD
As of October 29, 2026
Save $660 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,930 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7488072215. Listed at 18 retailers as of October 26, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7488072215
Dimensions5.89 × 4.01 × 2.58 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
5.89 mm4.01 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7488072215
Side View
Table 56.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 64.5%

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 29
Current: $653 AUD|Low: $562 AUD|High: $1,177 AUD|Avg: $773 AUD|+5.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$562 AUD
Retailer 2$595 AUD
Retailer 8$614 AUD
Retailer 1$653 AUD
Retailer 4$781 AUD
Retailer 9$807 AUD
Retailer 6$811 AUD
Retailer 3$930 AUD
Retailer 5$1,022 AUD
Retailer 7$1,164 AUD

37 data points across 10 retailers

18 retailers$504 AUD to $1,164 AUD

A
Cheapest Retailer
-
$504 AUD
$354 USD
B+
Retailer 2
-
$530 AUD
SGD 503 SGD
View
B+
Retailer 3
-
$542 AUD
$381 USD
View
B+
Retailer 4
-
$562 AUD
$395 USD
View
B+
Retailer 5
-
$595 AUD
$418 USD
View
B+
Retailer 6
-
$614 AUD
$431 USD
View
B+
Retailer 7
-
$653 AUD
£361 GBP
View
B
Retailer 8
-
$678 AUD
$476 USD
View
B
Retailer 9
-
$690 AUD
$484 USD
View
B+
Retailer 10
-
$717 AUD
$504 USD
View
B
Retailer 11
-
$729 AUD
$512 USD
View
B
Retailer 12
-
$781 AUD
ZAR 8,862 ZAR
View
Retailer 13
-
$807 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$811 AUD
$570 USD
View
B
Retailer 15
-
$930 AUD
€622 EUR
View
B
Retailer 16
-
$1,022 AUD
£566 GBP
View
B
Retailer 17
-
$1,164 AUD
£644 GBP
View
Most Expensive
NZ Jewellers
31b79f22-11ce-47dc-b61d-e0e62e2e7811 · Oct 30
$1,930 AUD
$1,356 USD
View
Price under review
17 more retailers have this diamond
Prices start from $504 AUDSave up to $660 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 Oval
$504 AUD