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Oval|Natural|GIA

0.40ct I SI2 Oval Natural Diamond

GD • I/SI2 • GIA 2557857621

Certificate GIA 2557857621

Diamond specifications and retailer prices

From €370 EUR
$413 USD
As of November 1, 2026
Save €686 EUR (65%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,056 EUR at Diamond Exchange Canada · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557857621. Listed at 7 retailers as of October 30, 2026, with prices from €370 to €1,056, a €686 spread on the same certified stone. Diamond Exchange Canada lists it at €1,056. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557857621
Dimensions5.98 × 4.00 × 2.55 mm
L/W Ratio1.50
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.98 mm4.00 mm0.40 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2557857621
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

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 1
Current: €1,056 EUR|Low: €370 EUR|High: €1,056 EUR|Avg: €619 EUR
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5€370 EUR
Retailer 6€440 EUR
Retailer 7€465 EUR
Retailer 3€601 EUR
Retailer 2€611 EUR
Retailer 4€883 EUR
Diamond Exchange Canada€1,056 EUR

38 data points across 7 retailers

7 retailers€370 EUR to €1,056 EUR

B+
Cheapest Retailer
-
€370 EUR
$413 USD
B
Retailer 2
-
€440 EUR
$491 USD
View
B
Retailer 3
-
€465 EUR
$520 USD
View
C
Retailer 4
-
€601 EUR
£529 GBP
View
C
Retailer 5
-
€611 EUR
View
Retailer 6
-
€883 EUR
£777 GBP
View
Price last confirmed 22 days ago
Most Expensive
C
Diamond Exchange Canada
1981546507 · Oct 30
€1,056 EUR
CA$1,638 CAD
View
6 more retailers have this diamond
Prices start from €370 EURSave up to €686 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
€370 EUR