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Round|Natural|GIA

0.90ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5566560520

Certificate GIA 5566560520

Diamond specifications and retailer prices

From HK$9,132 HKD
As of November 6, 2026
Save HK$20,068 HKD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$29,820 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566560520. Listed at 18 retailers as of November 2, 2026, with a 220% 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

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5566560520
Dimensions6.18 × 6.20 × 3.84 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
6.18 mm6.20 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566560520
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.0%

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$29,820 HKD|Low: HK$9,038 HKD|High: HK$29,820 HKD|Avg: HK$15,178 HKD
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
November 2, 2026
Retailer 15HK$9,132 HKD
Retailer 13HK$9,540 HKD
Retailer 7HK$11,101 HKD
Retailer 8HK$11,219 HKD
Retailer 17HK$11,768 HKD
Retailer 10HK$12,121 HKD
Retailer 4HK$12,223 HKD
Retailer 18HK$12,223 HKD
Retailer 9HK$12,741 HKD
Retailer 3HK$12,788 HKD
Retailer 6HK$13,290 HKD
Retailer 11HK$13,502 HKD
Retailer 5HK$14,106 HKD
Retailer 12HK$16,616 HKD
Retailer 16HK$18,028 HKD
Retailer 14HK$21,417 HKD
Retailer 2HK$29,200 HKD
NZ JewellersHK$29,820 HKD

18 data points across 18 retailers

18 retailersHK$9,132 HKD to HK$29,200 HKD

A
Cheapest Retailer
-
HK$9,132 HKD
A
Retailer 2
-
HK$9,540 HKD
View
B+
Retailer 3
-
HK$11,101 HKD
View
B+
Retailer 4
-
HK$11,219 HKD
View
B+
Retailer 5
-
HK$11,768 HKD
View
B
Retailer 6
-
HK$12,121 HKD
View
Retailer 7
-
HK$12,223 HKD
View
Price last confirmed 8 days ago
B
Retailer 8
-
HK$12,223 HKD
View
Retailer 9
-
HK$12,741 HKD
View
Price last confirmed 10 days ago
B
Retailer 10
-
HK$12,788 HKD
View
B
Retailer 11
-
HK$13,290 HKD
View
B
Retailer 12
-
HK$13,502 HKD
View
B
Retailer 13
-
HK$14,106 HKD
View
B
Retailer 14
-
HK$16,616 HKD
View
B
Retailer 15
-
HK$18,028 HKD
View
B
Retailer 16
-
HK$21,417 HKD
View
B
Retailer 17
-
HK$29,200 HKD
View
Most Expensive
NZ Jewellers
963deaa8-a60e-43fa-abc0-9752fca7d4ab · Oct 30
HK$29,820 HKD
$3,801 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from HK$9,132 HKDSave up to HK$20,068 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
0.90ct Round
HK$9,132 HKD