CaratHunter
Plans
Oval|Natural|GIA

0.40ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7488072215

Certificate GIA 7488072215

Diamond specifications and retailer prices

From $453 SGD
$354 USD
As of October 29, 2026
Save $593 SGD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,734 SGD at NZ Jewellers · As of October 30, 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 7488072215. Listed at 18 retailers as of October 26, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 7488072215
Dimensions5.89 × 4.01 × 2.58 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
5.89 mm4.01 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7488072215
Side View
Table 56.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 64.5%

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: $701 SGD|Low: $488 SGD|High: $1,057 SGD|Avg: $672 SGD|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3$489 SGD
Retailer 11$505 SGD
Retailer 2$534 SGD
Retailer 9$551 SGD
Retailer 5$586 SGD
Retailer 1$701 SGD
Retailer 10$724 SGD
Retailer 7$729 SGD
Retailer 6$834 SGD
Retailer 4$918 SGD
Retailer 8$1,046 SGD

37 data points across 11 retailers

18 retailers$453 SGD to $1,046 SGD

A
Cheapest Retailer
-
$453 SGD
$354 USD
B+
Retailer 2
-
$476 SGD
View
B+
Retailer 3
-
$487 SGD
$381 USD
View
B+
Retailer 4
-
$505 SGD
$395 USD
View
B+
Retailer 5
-
$534 SGD
$418 USD
View
B+
Retailer 6
-
$551 SGD
$431 USD
View
B+
Retailer 7
-
$586 SGD
£361 GBP
View
B
Retailer 8
-
$609 SGD
$476 USD
View
B
Retailer 9
-
$619 SGD
$484 USD
View
B+
Retailer 10
-
$644 SGD
$504 USD
View
B
Retailer 11
-
$655 SGD
$512 USD
View
B
Retailer 12
-
$701 SGD
ZAR 8,862 ZAR
View
Retailer 13
-
$724 SGD
A$872 AUD
View
Price last confirmed 27 days ago
B
Retailer 14
-
$729 SGD
$570 USD
View
B
Retailer 15
-
$834 SGD
€621 EUR
View
B
Retailer 16
-
$918 SGD
£566 GBP
View
B
Retailer 17
-
$1,046 SGD
£644 GBP
View
Most Expensive
NZ Jewellers
31b79f22-11ce-47dc-b61d-e0e62e2e7811 · Oct 30
$1,734 SGD
$1,356 USD
View
Price under review
17 more retailers have this diamond
Prices start from $453 SGDSave up to $593 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.

A
0.40ct Oval
$453 SGD