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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555704351

Certificate GIA 1555704351

Diamond specifications and retailer prices

From HK$2,916 HKD
As of November 6, 2026
Save HK$9,515 HKD (77%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$13,269 HKD at NZ Jewellers · As of September 5, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555704351. Listed at 24 retailers as of November 6, 2026, with a 326% 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555704351
Dimensions5.09 × 5.12 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.09 mm5.12 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555704351
Side View
Table 57.0%Crown 34.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.6%

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$12,430 HKD|Low: HK$2,916 HKD|High: HK$12,673 HKD|Avg: HK$5,393 HKD|-1.9%
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 17HK$2,916 HKD
Retailer 11HK$3,409 HKD
Retailer 10HK$3,652 HKD
Retailer 2HK$3,660 HKD
Retailer 7HK$3,723 HKD
Retailer 12HK$4,044 HKD
Retailer 14HK$4,099 HKD
Retailer 20HK$4,177 HKD
Retailer 15HK$4,271 HKD
Retailer 6HK$4,326 HKD
Retailer 5HK$4,577 HKD
Retailer 21HK$4,938 HKD
Retailer 13HK$4,977 HKD
Retailer 18HK$5,102 HKD
Retailer 3HK$5,376 HKD
Retailer 9HK$5,486 HKD
Retailer 16HK$5,486 HKD
Retailer 19HK$5,612 HKD
Retailer 8HK$9,334 HKD
Retailer 4HK$11,317 HKD
NZ JewellersHK$12,430 HKD

20 data points across 21 retailers

24 retailersHK$2,916 HKD to HK$12,430 HKD

A
Cheapest Retailer
-
HK$2,916 HKD
A
Retailer 2
-
HK$3,409 HKD
View
A
Retailer 3
-
HK$3,652 HKD
View
A
Retailer 4
-
HK$3,660 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$3,723 HKD
View
A
Retailer 6
-
HK$4,044 HKD
View
Retailer 7
-
HK$4,099 HKD
View
Price last confirmed 19 days ago
A
Retailer 8
-
HK$4,177 HKD
View
Retailer 9
-
HK$4,232 HKD
View
Price last confirmed 62 days ago
A
Retailer 10
-
HK$4,271 HKD
View
A
Retailer 11
-
HK$4,326 HKD
View
A
Retailer 12
-
HK$4,577 HKD
View
Retailer 13
-
HK$4,836 HKD
View
Price last confirmed 58 days ago
A
Retailer 14
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HK$4,938 HKD
View
A
Retailer 15
-
HK$4,977 HKD
View
A
Retailer 16
-
HK$5,102 HKD
View
B+
Retailer 17
-
HK$5,376 HKD
View
B+
Retailer 18
-
HK$5,486 HKD
View
B+
Retailer 19
-
HK$5,486 HKD
View
B+
Retailer 20
-
HK$5,612 HKD
View
B
Retailer 21
-
HK$9,334 HKD
View
B
Retailer 22
-
HK$11,317 HKD
View
B
Retailer 23
-
HK$12,430 HKD
View
Most Expensive
NZ Jewellers
0fbbc272-3477-4896-9d45-b4c12400f3fe · Sep 5
HK$13,269 HKD
$1,693 USD
View
Price last confirmed 62 days ago
23 more retailers have this diamond
Prices start from HK$2,916 HKDSave up to HK$9,515 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
0.50ct Round
HK$2,916 HKD