Round|Natural|GIA

0.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5553182525

Certificate GIA 5553182525

Diamond specifications and retailer prices

From HK$3,091 HKD
$394 USD
As of October 31, 2026
Save HK$5,378 HKD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$12,577 HKD at NZ Jewellers · As of October 20, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553182525. Listed at 18 retailers as of October 27, 2026, with a 174% 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5553182525
Dimensions4.27 × 2.67 × 2.67 mm
L/W Ratio1.60
Top View
4.27 mm2.67 mm0.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553182525
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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$4,044 HKD|Low: HK$2,665 HKD|High: HK$8,469 HKD|Avg: HK$4,421 HKD|+21.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 8HK$2,665 HKD
Retailer 2HK$3,091 HKD
Retailer 5HK$3,154 HKD
Retailer 6HK$3,468 HKD
Retailer 4HK$3,656 HKD
Retailer 13HK$3,766 HKD
Retailer 15HK$3,766 HKD
Retailer 3HK$3,908 HKD
Retailer 16HK$3,923 HKD
Retailer 7HK$3,951 HKD
Retailer 1HK$4,044 HKD
Retailer 9HK$4,992 HKD
Retailer 11HK$5,087 HKD
Retailer 10HK$6,640 HKD
Retailer 12HK$7,613 HKD
Retailer 14HK$8,469 HKD

26 data points across 16 retailers

18 retailersHK$3,091 HKD to HK$8,469 HKD

Retailer 1
-
HK$2,790 HKD
$356 USD
Price last confirmed 47 days ago
Retailer 2
-
HK$2,974 HKD
$379 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
HK$3,091 HKD
$394 USD
View
Retailer 4
-
HK$3,201 HKD
$408 USD
View
Price last confirmed 17 days ago
Retailer 5
-
HK$3,319 HKD
$423 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
HK$3,633 HKD
$463 USD
View
B+
Retailer 7
-
HK$3,766 HKD
$480 USD
View
B+
Retailer 8
-
HK$3,766 HKD
$480 USD
View
B
Retailer 9
-
HK$3,908 HKD
$498 USD
View
B+
Retailer 10
-
HK$3,923 HKD
$500 USD
View
Retailer 11
-
HK$4,001 HKD
$510 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
HK$4,044 HKD
£406 GBP
View
B
Retailer 13
-
HK$4,992 HKD
€606 EUR
View
B
Retailer 14
-
HK$5,087 HKD
ZAR 10,475 ZAR
View
B
Retailer 15
-
HK$6,640 HKD
£666 GBP
View
B
Retailer 16
-
HK$7,613 HKD
£764 GBP
View
B
Retailer 17
-
HK$8,469 HKD
£850 GBP
View
Most Expensive
NZ Jewellers
a6c58f02-6568-476a-82a9-414cc1868616 · Oct 20
HK$12,577 HKD
$1,603 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$3,091 HKDSave up to HK$5,378 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+
0.30ct Round
HK$3,091 HKD