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Oval|Natural|GIA

0.40ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 7558858763

Certificate GIA 7558858763

Diamond specifications and retailer prices

From $551 AUD
$387 USD
As of October 30, 2026
Save $421 AUD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,722 AUD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558858763. Listed at 9 retailers as of October 30, 2026, with a 76% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7558858763
Dimensions5.81 × 4.05 × 2.60 mm
L/W Ratio1.43
Culet sizeNone
Key to symbols
Cloud, Twinning Wisp, Feather
Top View
5.81 mm4.05 mm0.40 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7558858763
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.3%

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 30
Current: $1,722 AUD|Low: $527 AUD|High: $1,722 AUD|Avg: $884 AUD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4$527 AUD
Retailer 7$551 AUD
Retailer 8$646 AUD
Retailer 6$656 AUD
Retailer 9$683 AUD
Retailer 3$906 AUD
Retailer 2$972 AUD
Retailer 5$1,304 AUD
Diamond Exchange Canada$1,722 AUD

39 data points across 9 retailers

9 retailers$551 AUD to $972 AUD

Retailer 1
-
$527 AUD
$370 USD
Price last confirmed 24 days ago
B+
Retailer 2
-
$551 AUD
$387 USD
View
B+
Retailer 3
-
$646 AUD
$454 USD
View
B+
Retailer 4
-
$656 AUD
$461 USD
View
B+
Retailer 5
-
$683 AUD
$480 USD
View
B
Retailer 6
-
$906 AUD
€606 EUR
View
B
Retailer 7
-
$972 AUD
£538 GBP
View
Retailer 8
-
$1,304 AUD
£721 GBP
View
Price last confirmed 21 days ago
Most Expensive
Diamond Exchange Canada
1981546506 · Oct 30
$1,722 AUD
CA$1,680 CAD
View
Price under review
8 more retailers have this diamond
Prices start from $551 AUDSave up to $421 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 Oval
$551 AUD