Oval|Natural|GIA

0.40ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 5241055820

Certificate GIA 5241055820

Diamond specifications and retailer prices

From $387 CAD
$277 USD
As of October 18, 2026
16 retailers carry this diamond
Most expensive: $1,753 CAD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

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 5241055820. Listed at 16 retailers as of October 17, 2026. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5241055820
Dimensions5.92 × 4.14 × 2.64 mm
L/W Ratio1.43
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.92 mm4.14 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241055820
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 18
Current: $1,753 CAD|Low: $387 CAD|High: $1,753 CAD|Avg: $639 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 20, 2026
Retailer 7$387 CAD
Retailer 11$391 CAD
Retailer 4$409 CAD
Retailer 9$416 CAD
Retailer 18$432 CAD
Retailer 3$447 CAD
Retailer 2$468 CAD
Retailer 6$521 CAD
Retailer 8$569 CAD
Retailer 10$574 CAD
Retailer 14$599 CAD
Retailer 5$613 CAD
Retailer 16$620 CAD
Retailer 12$662 CAD
Retailer 15$705 CAD
Retailer 17$793 CAD
Retailer 13$898 CAD
NZ Jewellers$1,753 CAD

36 data points across 18 retailers

16 retailers$387 CAD to $1,753 CAD

Retailer 1
-
$387 CAD
$277 USD
Price last confirmed 12 days ago
Retailer 2
-
$391 CAD
$280 USD
View
Price last confirmed 11 days ago
Retailer 3
-
$409 CAD
SGD 396 SGD
View
Price last confirmed 11 days ago
Retailer 4
-
$416 CAD
$298 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$432 CAD
$309 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$447 CAD
$320 USD
View
Price last confirmed 12 days ago
Retailer 7
-
$468 CAD
£264 GBP
View
Price last confirmed 10 days ago
Retailer 8
-
$519 CAD
SGD 502 SGD
View
Price last confirmed 8 days ago
Retailer 9
-
$521 CAD
$373 USD
View
Price last confirmed 11 days ago
Retailer 10
-
$569 CAD
$407 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$574 CAD
$411 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$599 CAD
ZAR 6,927 ZAR
View
Price last confirmed 14 days ago
Retailer 13
-
$613 CAD
$439 USD
View
Price last confirmed 11 days ago
Retailer 14
-
$620 CAD
A$683 AUD
View
Price last confirmed 26 days ago
Retailer 15
-
$898 CAD
£506 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
43c0857f-5470-4444-b807-2cbd8a2bfe56 · Oct 17
$1,753 CAD
$1,255 USD
View
Price under review
15 more retailers have this diamond

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.

0.40ct Oval
$387 CAD