Oval|Natural|GIA

0.40ct G SI2 Oval Natural Diamond

VG • G/SI2 • GIA 2557737642

Certificate GIA 2557737642

Diamond specifications and retailer prices

From €377 EUR
$421 USD
As of October 29, 2026
Save €494 EUR (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €871 EUR at MOH London · As of October 25, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557737642. Listed at 13 retailers as of October 25, 2026, with prices from €377 to €871, a €494 spread on the same certified stone. MOH London lists it at €871. 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
G
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557737642
Dimensions4.26 × 5.83 × 2.47 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Feather
Top View
4.26 mm5.83 mm0.40 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557737642
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 57.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €871 EUR|Low: €377 EUR|High: €881 EUR|Avg: €504 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6€377 EUR
Retailer 10€394 EUR
Retailer 8€405 EUR
Retailer 7€435 EUR
Retailer 2€463 EUR
Retailer 9€494 EUR
Retailer 5€502 EUR
Retailer 4€533 EUR
Retailer 3€617 EUR
MOH London€871 EUR

40 data points across 10 retailers

13 retailers€377 EUR to €871 EUR

A
Cheapest Retailer
-
€377 EUR
$421 USD
B+
Retailer 2
-
€394 EUR
SGD 595 SGD
View
B+
Retailer 3
-
€405 EUR
$453 USD
View
B+
Retailer 4
-
€405 EUR
$453 USD
View
B+
Retailer 5
-
€435 EUR
$486 USD
View
B+
Retailer 6
-
€435 EUR
$486 USD
View
B+
Retailer 7
-
€463 EUR
£407 GBP
View
B
Retailer 8
-
€494 EUR
$552 USD
View
B
Retailer 9
-
€502 EUR
$561 USD
View
Retailer 10
-
€533 EUR
£469 GBP
View
Price last confirmed 38 days ago
B
Retailer 11
-
€617 EUR
View
Most Expensive
B
MOH London
B0437BC8E · Oct 25
€871 EUR
£766 GBP
View
11 more retailers have this diamond
Prices start from €377 EURSave up to €494 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.

A
0.40ct Oval
€377 EUR