Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6481480989

Certificate GIA 6481480989

Diamond specifications and retailer prices

From HK$3,648 HKD
$465 USD
As of October 31, 2026
Save HK$7,740 HKD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$12,616 HKD at NZ Jewellers · As of October 30, 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 very-good cut grade and certified by GIA 6481480989. Listed at 19 retailers as of October 30, 2026, with a 212% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6481480989
Dimensions4.60 × 4.58 × 2.96 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
4.60 mm4.58 mm0.40 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6481480989
Side View
Table 58.0%Crown 37.5°Girdle: ThickPavilion 40.6°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$5,421 HKD|Low: HK$3,727 HKD|High: HK$9,406 HKD|Avg: HK$5,628 HKD|+3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5HK$3,727 HKD
Retailer 9HK$4,315 HKD
Retailer 8HK$4,470 HKD
Retailer 3HK$4,973 HKD
Retailer 6HK$5,257 HKD
Retailer 1HK$5,421 HKD
Retailer 7HK$6,050 HKD
Retailer 4HK$6,239 HKD
Retailer 2HK$9,286 HKD

45 data points across 9 retailers

19 retailersHK$3,648 HKD to HK$11,388 HKD

B+
Cheapest Retailer
-
HK$3,648 HKD
$465 USD
Retailer 2
-
HK$3,727 HKD
$475 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
HK$3,821 HKD
$487 USD
View
B+
Retailer 4
-
HK$3,852 HKD
$491 USD
View
B+
Retailer 5
-
HK$3,923 HKD
$500 USD
View
B+
Retailer 6
-
HK$3,923 HKD
$500 USD
View
B
Retailer 7
-
HK$4,205 HKD
$536 USD
View
B+
Retailer 8
-
HK$4,315 HKD
$550 USD
View
B
Retailer 9
-
HK$4,745 HKD
$605 USD
View
B
Retailer 10
-
HK$4,973 HKD
£499 GBP
View
B
Retailer 11
-
HK$5,021 HKD
$640 USD
View
B
Retailer 12
-
HK$5,257 HKD
$670 USD
View
B
Retailer 13
-
HK$5,421 HKD
€658 EUR
View
B
Retailer 14
-
HK$5,523 HKD
$704 USD
View
Retailer 15
-
HK$6,050 HKD
A$1,186 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
HK$6,239 HKD
ZAR 12,846 ZAR
View
B
Retailer 17
-
HK$9,286 HKD
£932 GBP
View
C
Retailer 18
-
HK$11,388 HKD
CA$2,016 CAD
View
Most Expensive
NZ Jewellers
ab7d08a6-0efd-41c6-ba36-cdabfac6969c · Oct 30
HK$12,616 HKD
$1,608 USD
View
Price under review
18 more retailers have this diamond
Prices start from HK$3,648 HKDSave up to HK$7,740 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.

B+
0.40ct Round
HK$3,648 HKD