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Oval|Natural|GIA

0.40ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 6552545223

Certificate GIA 6552545223

Diamond specifications and retailer prices

From $777 AUD
$546 USD
As of October 31, 2026
Save $554 AUD (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,982 AUD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552545223. Listed at 18 retailers as of October 30, 2026, with a 71% 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552545223
Dimensions6.39 × 4.15 × 2.43 mm
L/W Ratio1.54
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
6.39 mm4.15 mm0.40 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552545223
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,982 AUD|Low: $837 AUD|High: $2,005 AUD|Avg: $1,327 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8$837 AUD
Retailer 3$1,046 AUD
Retailer 6$1,061 AUD
Retailer 4$1,268 AUD
Retailer 7$1,291 AUD
Retailer 5$1,331 AUD
Retailer 2$1,737 AUD
MOH London$1,982 AUD

36 data points across 8 retailers

18 retailers$777 AUD to $1,331 AUD

B
Cheapest Retailer
-
$777 AUD
$546 USD
B
Retailer 2
-
$809 AUD
$568 USD
View
B
Retailer 3
-
$809 AUD
$568 USD
View
B
Retailer 4
-
$837 AUD
$588 USD
View
B
Retailer 5
-
$837 AUD
$588 USD
View
B
Retailer 6
-
$897 AUD
$630 USD
View
B
Retailer 7
-
$939 AUD
$659 USD
View
B
Retailer 8
-
$1,021 AUD
$717 USD
View
B
Retailer 9
-
$1,046 AUD
£578 GBP
View
C
Retailer 10
-
$1,061 AUD
$745 USD
View
C
Retailer 11
-
$1,081 AUD
$759 USD
View
B
Retailer 12
-
$1,268 AUD
€848 EUR
View
Retailer 13
-
$1,291 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$1,331 AUD
ZAR 15,102 ZAR
View
Retailer 15
-
$1,737 AUD
£961 GBP
View
Price under review
Most Expensive
MOH London
403292D33 · Nov 1
$1,982 AUD
£1,096 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $777 AUDSave up to $554 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
$777 AUD