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Round|Natural|GIA

0.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1377580731

Certificate GIA 1377580731

Diamond specifications and retailer prices

From HK$1,404 HKD
As of November 6, 2026
Save HK$5,900 HKD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$7,304 HKD at NZ Jewellers · As of November 4, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1377580731. Listed at 16 retailers as of November 4, 2026, with prices from HK$1,404 to HK$7,304, a HK$5,900 spread on the same certified stone. NZ Jewellers lists it at HK$7,304. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1377580731
Dimensions4.34 × 4.31 × 2.69 mm
L/W Ratio1.01
Star length50%
Key to symbols
Crystal, Feather
Top View
4.34 mm4.31 mm0.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1377580731
Side View
Table 56.0%Crown 35.5°Girdle: ThinPavilion 41.2°Culet: NoneDepth 62.1%

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: Nov 6
Current: HK$1,734 HKD|Low: HK$1,404 HKD|High: HK$3,766 HKD|Avg: HK$2,573 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9HK$1,404 HKD
Retailer 5HK$1,647 HKD
Retailer 1HK$1,734 HKD
Retailer 8HK$2,087 HKD
Retailer 7HK$2,110 HKD
Retailer 4HK$2,510 HKD
Retailer 3HK$2,816 HKD
Retailer 2HK$3,413 HKD
Retailer 6HK$3,711 HKD

40 data points across 9 retailers

16 retailersHK$1,404 HKD to HK$7,304 HKD

A
Cheapest Retailer
-
HK$1,404 HKD
A
Retailer 2
-
HK$1,616 HKD
View
A
Retailer 3
-
HK$1,647 HKD
View
Retailer 4
-
HK$1,734 HKD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$1,734 HKD
View
A
Retailer 6
-
HK$1,797 HKD
View
A
Retailer 7
-
HK$2,024 HKD
View
A
Retailer 8
-
HK$2,087 HKD
View
A
Retailer 9
-
HK$2,110 HKD
View
A
Retailer 10
-
HK$2,173 HKD
View
B+
Retailer 11
-
HK$2,510 HKD
View
B+
Retailer 12
-
HK$2,628 HKD
View
B+
Retailer 13
-
HK$2,816 HKD
View
B+
Retailer 14
-
HK$3,413 HKD
View
B
Retailer 15
-
HK$3,711 HKD
View
Most Expensive
B
NZ Jewellers
ff69c0e4-b614-4989-a8d1-cae0109d269d · Nov 4
HK$7,304 HKD
$931 USD
View
15 more retailers have this diamond
Prices start from HK$1,404 HKDSave up to HK$5,900 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$1,404 HKD