Oval|Natural|GIA

0.40ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 6552545223

Certificate GIA 6552545223

Diamond specifications and retailer prices

From €489 EUR
$546 USD
As of October 31, 2026
Save €348 EUR (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,246 EUR 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
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

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: €1,246 EUR|Low: €526 EUR|High: €1,261 EUR|Avg: €835 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8€526 EUR
Retailer 3€658 EUR
Retailer 6€667 EUR
Retailer 4€797 EUR
Retailer 7€811 EUR
Retailer 5€837 EUR
Retailer 2€1,092 EUR
MOH London€1,246 EUR

36 data points across 8 retailers

18 retailers€489 EUR to €837 EUR

B
Cheapest Retailer
-
€489 EUR
$546 USD
B
Retailer 2
-
€508 EUR
$568 USD
View
B
Retailer 3
-
€508 EUR
$568 USD
View
B
Retailer 4
-
€526 EUR
$588 USD
View
B
Retailer 5
-
€526 EUR
$588 USD
View
B
Retailer 6
-
€564 EUR
$630 USD
View
B
Retailer 7
-
€590 EUR
$659 USD
View
B
Retailer 8
-
€642 EUR
$717 USD
View
B
Retailer 9
-
€658 EUR
£578 GBP
View
C
Retailer 10
-
€667 EUR
$745 USD
View
C
Retailer 11
-
€679 EUR
$759 USD
View
B
Retailer 12
-
€797 EUR
View
Retailer 13
-
€811 EUR
A$1,395 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
€837 EUR
ZAR 15,102 ZAR
View
Retailer 15
-
€1,092 EUR
£961 GBP
View
Price under review
Most Expensive
MOH London
403292D33 · Nov 1
€1,246 EUR
£1,096 GBP
View
Price under review
15 more retailers have this diamond
Prices start from €489 EURSave up to €348 EUR

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
€489 EUR