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Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1519021693

Certificate GIA 1519021693

Diamond specifications and retailer prices

From $466 SGD
₹34,694 INR
As of October 30, 2026
Save $1,015 SGD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,453 SGD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1519021693. Listed at 21 retailers as of October 26, 2026, with a 218% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1519021693
Dimensions4.76 × 4.74 × 2.92 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Key to symbols
Twinning Wisp
Top View
4.76 mm4.74 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519021693
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.4%

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 30
Current: $2,453 SGD|Low: $463 SGD|High: $2,453 SGD|Avg: $1,016 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4$466 SGD
Retailer 10$640 SGD
Retailer 7$646 SGD
Retailer 2$797 SGD
Retailer 5$871 SGD
Retailer 8$901 SGD
Retailer 9$963 SGD
Retailer 3$993 SGD
Retailer 6$1,481 SGD
NZ Jewellers$2,453 SGD

34 data points across 10 retailers

21 retailers$466 SGD to $1,481 SGD

A
Cheapest Retailer
-
$466 SGD
₹34,694 INR
B+
Retailer 2
-
$606 SGD
$474 USD
View
Retailer 3
-
$640 SGD
$501 USD
View
Price last confirmed 36 days ago
B+
Retailer 4
-
$640 SGD
$501 USD
View
Retailer 5
-
$646 SGD
$505 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$668 SGD
View
B
Retailer 7
-
$689 SGD
$539 USD
View
B
Retailer 8
-
$689 SGD
$539 USD
View
Retailer 9
-
$739 SGD
$578 USD
View
Price last confirmed 39 days ago
B
Retailer 10
-
$797 SGD
£491 GBP
View
B
Retailer 11
-
$808 SGD
$632 USD
View
B
Retailer 12
-
$869 SGD
$680 USD
View
B
Retailer 13
-
$871 SGD
€649 EUR
View
Retailer 14
-
$877 SGD
$686 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
$899 SGD
$703 USD
View
B
Retailer 16
-
$901 SGD
$705 USD
View
Retailer 17
-
$963 SGD
A$1,158 AUD
View
Price last confirmed 27 days ago
B
Retailer 18
-
$993 SGD
ZAR 12,543 ZAR
View
B
Retailer 19
-
$1,481 SGD
£912 GBP
View
Retailer 20
-
$2,453 SGD
$1,919 USD
View
Price under review
Most Expensive
NZ Jewellers
a447cac8-4a83-4c83-9723-810f02c6a6a6 · Sep 24
$2,453 SGD
$1,919 USD
View
Price under review
20 more retailers have this diamond
Prices start from $466 SGDSave up to $1,015 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 Round
$466 SGD