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Oval|Natural|GIA

0.40ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 2556514178

Certificate GIA 2556514178

Diamond specifications and retailer prices

From $484 AUD
SGD 459 SGD
As of October 31, 2026
Save $374 AUD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $858 AUD at Yorxs · As of October 31, 2026
View at Yorxs

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded H 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 2556514178. Listed at 9 retailers as of October 31, 2026, with prices from $484 to $858, a $374 spread on the same certified stone. Yorxs lists it at $858. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle36.62°
Pavilion angle41.93°
OriginNatural
Grading LabGIA
CertificateGIA 2556514178
Dimensions5.97 × 4.13 × 2.55 mm
L/W Ratio1.45
Culet sizeNone
Top View
5.97 mm4.13 mm0.40 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2556514178
Side View
Table 58.0%Crown 36.62°Girdle: MED-VTKPavilion 41.93°Culet: NoneDepth 61.8%

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: Oct 31
Current: $643 AUD|Low: $484 AUD|High: $898 AUD|Avg: $660 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 1, 2026
Retailer 7$484 AUD
Retailer 3$548 AUD
Retailer 2$622 AUD
Retailer 5$630 AUD
Retailer 6$641 AUD
Retailer 1$643 AUD
Retailer 4$724 AUD
Yorxs$858 AUD

39 data points across 8 retailers

9 retailers$484 AUD to $858 AUD

A
Cheapest Retailer
-
$484 AUD
SGD 459 SGD
A
Retailer 2
-
$548 AUD
SGD 520 SGD
View
B+
Retailer 3
-
$622 AUD
£344 GBP
View
B+
Retailer 4
-
$630 AUD
$442 USD
View
B+
Retailer 5
-
$641 AUD
$450 USD
View
B+
Retailer 6
-
$643 AUD
£355 GBP
View
B
Retailer 7
-
$724 AUD
$509 USD
View
B
Retailer 8
-
$745 AUD
$523 USD
View
Most Expensive
B
Yorxs
622135568 · Oct 31
$858 AUD
€574 EUR
View
8 more retailers have this diamond
Prices start from $484 AUDSave up to $374 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
$484 AUD