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Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 6455989630

Certificate GIA 6455989630

Diamond specifications and retailer prices

From HK$1,560 HKD
As of November 6, 2026
Save HK$3,464 HKD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$9,225 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6455989630. Listed at 17 retailers as of November 4, 2026, with a 222% 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

0.45
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6455989630
Dimensions4.82 × 4.80 × 3.10 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
4.82 mm4.80 mm0.45 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6455989630
Side View
Table 58.0%Crown 35.5°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$2,547 HKD|Low: HK$1,560 HKD|High: HK$5,259 HKD|Avg: HK$3,067 HKD|-4.1%
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
November 6, 2026
Retailer 6HK$1,560 HKD
Retailer 11HK$1,709 HKD
Retailer 5HK$1,904 HKD
Retailer 7HK$2,375 HKD
Retailer 1HK$2,547 HKD
Retailer 3HK$2,602 HKD
Retailer 10HK$2,727 HKD
Retailer 9HK$3,033 HKD
Retailer 13HK$3,198 HKD
Retailer 12HK$3,394 HKD
Retailer 8HK$3,762 HKD
Retailer 4HK$3,958 HKD
Retailer 2HK$5,024 HKD

25 data points across 13 retailers

17 retailersHK$1,560 HKD to HK$5,024 HKD

A
Cheapest Retailer
-
HK$1,560 HKD
A
Retailer 2
-
HK$1,709 HKD
View
A
Retailer 3
-
HK$1,904 HKD
View
A
Retailer 4
-
HK$2,375 HKD
View
A
Retailer 5
-
HK$2,547 HKD
View
A
Retailer 6
-
HK$2,602 HKD
View
Retailer 7
-
HK$2,649 HKD
View
Price last confirmed 51 days ago
Retailer 8
-
HK$2,680 HKD
View
Price last confirmed 38 days ago
A
Retailer 9
-
HK$2,727 HKD
View
A
Retailer 10
-
HK$3,033 HKD
View
A
Retailer 11
-
HK$3,198 HKD
View
Retailer 12
-
HK$3,237 HKD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
HK$3,394 HKD
View
B+
Retailer 14
-
HK$3,762 HKD
View
B+
Retailer 15
-
HK$3,958 HKD
View
B
Retailer 16
-
HK$5,024 HKD
View
Most Expensive
NZ Jewellers
1c342dd8-52b5-4a13-91a1-827523fefde5 · Sep 28
HK$9,225 HKD
$1,177 USD
View
Price last confirmed 39 days ago
16 more retailers have this diamond
Prices start from HK$1,560 HKDSave up to HK$3,464 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
0.45ct Round
HK$1,560 HKD