Oval|Natural|GIA

0.40ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 6552545223

Certificate GIA 6552545223

Diamond specifications and retailer prices

From $546 USD
As of October 29, 2026
Save $389 USD (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,400 USD at MOH London · As of October 29, 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 29, 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
Color
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

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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 29
Current: $1,400 USD|Low: $588 USD|High: $1,408 USD|Avg: $933 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8$588 USD
Retailer 2$741 USD
Retailer 6$745 USD
Retailer 3$890 USD
Retailer 7$907 USD
Retailer 4$935 USD
Retailer 5$1,224 USD
MOH London$1,400 USD

37 data points across 8 retailers

18 retailers$546 USD to $935 USD

B
Cheapest Retailer
-
$546 USD
B
Retailer 2
-
$568 USD
View
B
Retailer 3
-
$568 USD
View
B
Retailer 4
-
$588 USD
View
B
Retailer 5
-
$588 USD
View
B
Retailer 6
-
$630 USD
View
B
Retailer 7
-
$659 USD
View
B
Retailer 8
-
$717 USD
View
B
Retailer 9
-
$741 USD
£583 GBP
View
C
Retailer 10
-
$745 USD
View
B
Retailer 11
-
$759 USD
View
B
Retailer 12
-
$890 USD
€848 EUR
View
Retailer 13
-
$907 USD
A$1,395 AUD
View
Price last confirmed 27 days ago
B
Retailer 14
-
$935 USD
ZAR 15,102 ZAR
View
Retailer 15
-
$1,224 USD
£964 GBP
View
Price under review
Most Expensive
MOH London
403292D33 · Oct 29
$1,400 USD
£1,102 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $546 USDSave up to $389 USD

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
$546 USD