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Oval|Natural|GIA

0.40ct E SI2 Oval Natural Diamond

GD • E/SI2 • GIA 6551816166

Certificate GIA 6551816166

Diamond specifications and retailer prices

From $764 AUD
As of November 5, 2026
Save $933 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,403 AUD at Diamond Exchange Canada · As of November 5, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551816166. Listed at 16 retailers as of November 5, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551816166
Dimensions6.11 × 3.94 × 2.58 mm
L/W Ratio1.55
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal
Top View
6.11 mm3.94 mm0.40 ctE / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6551816166
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.6%

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: Nov 5
Current: $1,697 AUD|Low: $822 AUD|High: $1,969 AUD|Avg: $1,325 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$822 AUD
Retailer 2$1,023 AUD
Retailer 5$1,164 AUD
Retailer 4$1,246 AUD
Retailer 1$1,697 AUD
Retailer 3$1,944 AUD

42 data points across 6 retailers

16 retailers$764 AUD to $1,697 AUD

B+
Cheapest Retailer
-
$764 AUD
B
Retailer 2
-
$798 AUD
View
B
Retailer 3
-
$802 AUD
View
B
Retailer 4
-
$822 AUD
View
Retailer 5
-
$822 AUD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$882 AUD
View
B
Retailer 7
-
$929 AUD
View
B
Retailer 8
-
$1,000 AUD
View
B
Retailer 9
-
$1,023 AUD
View
B
Retailer 10
-
$1,060 AUD
View
B
Retailer 11
-
$1,164 AUD
View
B
Retailer 12
-
$1,246 AUD
View
C
Retailer 13
-
$1,697 AUD
View
Retailer 14
-
$1,944 AUD
View
Price under review
Most Expensive
Diamond Exchange Canada
1981546449 · Nov 5
$2,403 AUD
CA$2,293 CAD
View
Price under review
14 more retailers have this diamond
Prices start from $764 AUDSave up to $933 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
$764 AUD