Oval|Natural|GIA

0.40ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6441376162

Certificate GIA 6441376162

Diamond specifications and retailer prices

From €377 EUR
$421 USD
As of October 31, 2026
Save €35 EUR (8%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €771 EUR at MOH London · As of October 4, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441376162. Listed at 6 retailers as of October 30, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6441376162
Dimensions5.43 × 4.14 × 2.71 mm
L/W Ratio1.31
Top View
5.43 mm4.14 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6441376162
Side View
Table 57.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.5%

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: Oct 31
Current: €771 EUR|Low: €377 EUR|High: €771 EUR|Avg: €486 EUR|+3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 6, 2026
Retailer 8€377 EUR
Retailer 6€403 EUR
Retailer 7€403 EUR
Retailer 2€410 EUR
Retailer 5€412 EUR
Retailer 9€509 EUR
Retailer 3€528 EUR
Retailer 4€600 EUR
MOH London€771 EUR

19 data points across 9 retailers

6 retailers€377 EUR to €412 EUR

B+
Cheapest Retailer
-
€377 EUR
$421 USD
B+
Retailer 2
-
€403 EUR
$450 USD
View
B+
Retailer 3
-
€403 EUR
$450 USD
View
B+
Retailer 4
-
€412 EUR
$460 USD
View
Retailer 5
-
€528 EUR
A$908 AUD
View
Price last confirmed 27 days ago
Most Expensive
MOH London
5DBB86725 · Oct 4
€771 EUR
£678 GBP
View
Price last confirmed 28 days ago
5 more retailers have this diamond
Prices start from €377 EURSave up to €35 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
€377 EUR