Round|Natural|GIA

0.30ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2407403371

Certificate GIA 2407403371

Diamond specifications and retailer prices

From HK$1,502 HKD
₹18,237 INR
As of October 31, 2026
Save HK$3,490 HKD (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$9,737 HKD at NZ Jewellers · As of October 29, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct 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 2407403371. Listed at 20 retailers as of October 29, 2026, with a 232% 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

0.30
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2407403371
Dimensions4.36 × 4.34 × 2.58 mm
L/W Ratio1.00
Top View
4.36 mm4.34 mm0.30 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2407403371
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.3%

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$9,737 HKD|Low: HK$1,499 HKD|High: HK$9,737 HKD|Avg: HK$3,790 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 2HK$1,502 HKD
Retailer 8HK$2,263 HKD
Retailer 3HK$2,714 HKD
Retailer 4HK$3,332 HKD
Retailer 7HK$3,443 HKD
Retailer 6HK$3,625 HKD
Retailer 9HK$3,782 HKD
Retailer 5HK$4,992 HKD
NZ JewellersHK$9,737 HKD

39 data points across 9 retailers

20 retailersHK$1,502 HKD to HK$4,992 HKD

A
Cheapest Retailer
-
HK$1,502 HKD
₹18,237 INR
B+
Retailer 2
-
HK$2,150 HKD
$274 USD
View
Retailer 3
-
HK$2,150 HKD
$274 USD
View
Price last confirmed 38 days ago
Retailer 4
-
HK$2,275 HKD
$290 USD
View
Price last confirmed 42 days ago
B+
Retailer 5
-
HK$2,276 HKD
SGD 392 SGD
View
B+
Retailer 6
-
HK$2,314 HKD
$295 USD
View
B+
Retailer 7
-
HK$2,401 HKD
$306 USD
View
B+
Retailer 8
-
HK$2,479 HKD
$316 USD
View
B+
Retailer 9
-
HK$2,506 HKD
A$491 AUD
View
B+
Retailer 10
-
HK$2,714 HKD
£272 GBP
View
Retailer 11
-
HK$2,895 HKD
$369 USD
View
Price last confirmed 40 days ago
B
Retailer 12
-
HK$3,172 HKD
$404 USD
View
B
Retailer 13
-
HK$3,194 HKD
$407 USD
View
B+
Retailer 14
-
HK$3,332 HKD
ZAR 6,861 ZAR
View
B
Retailer 15
-
HK$3,408 HKD
£342 GBP
View
Retailer 16
-
HK$3,443 HKD
A$675 AUD
View
Price last confirmed 28 days ago
B
Retailer 17
-
HK$3,782 HKD
$482 USD
View
B
Retailer 18
-
HK$4,992 HKD
£501 GBP
View
Retailer 19
-
HK$9,737 HKD
$1,241 USD
View
Price under review
Most Expensive
NZ Jewellers
d99bd1a5-4a68-43e7-a228-860f0fc8039e · Oct 29
HK$9,737 HKD
$1,241 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$1,502 HKDSave up to HK$3,490 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
0.30ct Round
HK$1,502 HKD