Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1519021693

Certificate GIA 1519021693

Diamond specifications and retailer prices

From HK$2,848 HKD
₹34,574 INR
As of October 31, 2026
Save HK$6,239 HKD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$15,056 HKD 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 219% 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 31
Current: HK$15,056 HKD|Low: HK$2,841 HKD|High: HK$15,056 HKD|Avg: HK$5,734 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 2HK$2,848 HKD
Retailer 12HK$3,931 HKD
Retailer 9HK$3,962 HKD
Retailer 3HK$4,229 HKD
Retailer 4HK$4,229 HKD
Retailer 5HK$4,890 HKD
Retailer 7HK$5,346 HKD
Retailer 10HK$5,531 HKD
Retailer 11HK$5,907 HKD
Retailer 6HK$6,091 HKD
Retailer 8HK$9,087 HKD
NZ JewellersHK$15,056 HKD

33 data points across 12 retailers

21 retailersHK$2,848 HKD to HK$9,087 HKD

A
Cheapest Retailer
-
HK$2,848 HKD
₹34,574 INR
B+
Retailer 2
-
HK$3,719 HKD
$474 USD
View
Retailer 3
-
HK$3,931 HKD
$501 USD
View
Price last confirmed 37 days ago
B+
Retailer 4
-
HK$3,931 HKD
$501 USD
View
Retailer 5
-
HK$3,962 HKD
$505 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
HK$4,099 HKD
SGD 706 SGD
View
B
Retailer 7
-
HK$4,229 HKD
$539 USD
View
B
Retailer 8
-
HK$4,229 HKD
$539 USD
View
Retailer 9
-
HK$4,535 HKD
$578 USD
View
Price last confirmed 39 days ago
B
Retailer 10
-
HK$4,890 HKD
£491 GBP
View
B
Retailer 11
-
HK$4,959 HKD
$632 USD
View
B
Retailer 12
-
HK$5,335 HKD
$680 USD
View
B
Retailer 13
-
HK$5,346 HKD
€649 EUR
View
Retailer 14
-
HK$5,385 HKD
$686 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
HK$5,519 HKD
$703 USD
View
B
Retailer 16
-
HK$5,531 HKD
$705 USD
View
Retailer 17
-
HK$5,907 HKD
A$1,158 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
HK$6,091 HKD
ZAR 12,543 ZAR
View
B
Retailer 19
-
HK$9,087 HKD
£912 GBP
View
Retailer 20
-
HK$15,056 HKD
$1,919 USD
View
Price under review
Most Expensive
NZ Jewellers
a447cac8-4a83-4c83-9723-810f02c6a6a6 · Sep 24
HK$15,056 HKD
$1,919 USD
View
Price under review
20 more retailers have this diamond
Prices start from HK$2,848 HKDSave up to HK$6,239 HKD

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
HK$2,848 HKD