CaratHunter
Plans
Oval|Natural|GIA

0.40ct G SI2 Oval Natural Diamond

VG • G/SI2 • GIA 2557737642

Certificate GIA 2557737642

Diamond specifications and retailer prices

From $599 AUD
$421 USD
As of October 29, 2026
Save $786 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,385 AUD at MOH London · As of October 25, 2026
View at MOH London

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557737642. Listed at 13 retailers as of October 25, 2026, with prices from $599 to $1,385, a $786 spread on the same certified stone. MOH London lists it at $1,385. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557737642
Dimensions4.26 × 5.83 × 2.47 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Feather
Top View
4.26 mm5.83 mm0.40 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557737642
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 57.9%

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: $1,385 AUD|Low: $599 AUD|High: $1,401 AUD|Avg: $800 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6$599 AUD
Retailer 10$627 AUD
Retailer 8$645 AUD
Retailer 7$692 AUD
Retailer 2$736 AUD
Retailer 9$786 AUD
Retailer 5$799 AUD
Retailer 4$848 AUD
Retailer 3$982 AUD
MOH London$1,385 AUD

41 data points across 10 retailers

13 retailers$599 AUD to $1,385 AUD

A
Cheapest Retailer
-
$599 AUD
$421 USD
B+
Retailer 2
-
$627 AUD
SGD 595 SGD
View
B+
Retailer 3
-
$645 AUD
$453 USD
View
B+
Retailer 4
-
$645 AUD
$453 USD
View
B+
Retailer 5
-
$692 AUD
$486 USD
View
B+
Retailer 6
-
$692 AUD
$486 USD
View
B+
Retailer 7
-
$736 AUD
£407 GBP
View
B
Retailer 8
-
$786 AUD
$552 USD
View
B
Retailer 9
-
$799 AUD
$561 USD
View
Retailer 10
-
$848 AUD
£469 GBP
View
Price last confirmed 37 days ago
B
Retailer 11
-
$982 AUD
€657 EUR
View
Most Expensive
B
MOH London
B0437BC8E · Oct 25
$1,385 AUD
£766 GBP
View
11 more retailers have this diamond
Prices start from $599 AUDSave up to $786 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
$599 AUD