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Round|Natural|GIA

1.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1559589355

Certificate GIA 1559589355

Diamond specifications and retailer prices

From HK$13,298 HKD
As of November 6, 2026
Save HK$9,940 HKD (43%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$32,440 HKD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559589355. Listed at 11 retailers as of November 4, 2026, with a 75% 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

1.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1559589355
Dimensions6.43 × 6.41 × 4.01 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.43 mm6.41 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559589355
Side View
Table 57.0%Crown 35.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.5%

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$14,671 HKD|Low: HK$13,298 HKD|High: HK$24,563 HKD|Avg: HK$17,169 HKD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6HK$13,298 HKD
Retailer 1HK$14,671 HKD
Retailer 2HK$15,839 HKD
Retailer 4HK$16,232 HKD
Retailer 3HK$18,020 HKD
Retailer 5HK$23,237 HKD

44 data points across 6 retailers

11 retailersHK$13,298 HKD to HK$23,237 HKD

A
Cheapest Retailer
-
HK$13,298 HKD
Retailer 2
-
HK$13,298 HKD
View
Price last confirmed 29 days ago
Retailer 3
-
HK$13,298 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$14,498 HKD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
HK$14,671 HKD
View
Retailer 6
-
HK$15,345 HKD
View
Price last confirmed 35 days ago
B+
Retailer 7
-
HK$15,839 HKD
View
B+
Retailer 8
-
HK$16,232 HKD
View
B+
Retailer 9
-
HK$18,020 HKD
View
B
Retailer 10
-
HK$23,237 HKD
View
Most Expensive
NZ Jewellers
d6bcc7c3-6a43-473f-a499-0316827d6bd6 · Oct 3
HK$32,440 HKD
$4,135 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from HK$13,298 HKDSave up to HK$9,940 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
1.02ct Round
HK$13,298 HKD