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Oval|Natural|GIA

0.40ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6441376162

Certificate GIA 6441376162

Diamond specifications and retailer prices

From $538 SGD
$421 USD
As of October 31, 2026
Save $50 SGD (8%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,101 SGD 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,101 SGD|Low: $538 SGD|High: $1,101 SGD|Avg: $694 SGD|+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$538 SGD
Retailer 6$575 SGD
Retailer 7$575 SGD
Retailer 2$585 SGD
Retailer 5$588 SGD
Retailer 9$727 SGD
Retailer 3$754 SGD
Retailer 4$856 SGD
MOH London$1,101 SGD

19 data points across 9 retailers

6 retailers$538 SGD to $588 SGD

B+
Cheapest Retailer
-
$538 SGD
$421 USD
B+
Retailer 2
-
$575 SGD
$450 USD
View
B+
Retailer 3
-
$575 SGD
$450 USD
View
B+
Retailer 4
-
$588 SGD
$460 USD
View
Retailer 5
-
$754 SGD
A$908 AUD
View
Price last confirmed 27 days ago
Most Expensive
MOH London
5DBB86725 · Oct 4
$1,101 SGD
£678 GBP
View
Price last confirmed 28 days ago
5 more retailers have this diamond
Prices start from $538 SGDSave up to $50 SGD

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
$538 SGD