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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5506585990

Certificate GIA 5506585990

Diamond specifications and retailer prices

From HK$9,117 HKD
$1,162 USD
As of October 31, 2026
Save HK$17,472 HKD (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$26,589 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5506585990. Listed at 20 retailers as of October 30, 2026, with prices from HK$9,117 to HK$26,589, a HK$17,472 spread on the same certified stone. NZ Jewellers lists it at HK$26,589. 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

0.80
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5506585990
Dimensions5.93 × 5.88 × 3.67 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.93 mm5.88 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5506585990
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$14,087 HKD|Low: HK$7,595 HKD|High: HK$20,207 HKD|Avg: HK$13,277 HKD|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8HK$9,117 HKD
Retailer 11HK$9,478 HKD
Retailer 10HK$10,254 HKD
Retailer 7HK$10,788 HKD
Retailer 5HK$12,081 HKD
Retailer 3HK$12,357 HKD
Retailer 1HK$14,087 HKD
Retailer 9HK$14,223 HKD
Retailer 6HK$16,122 HKD
Retailer 2HK$17,794 HKD
Retailer 4HK$19,968 HKD

44 data points across 11 retailers

20 retailersHK$9,117 HKD to HK$26,589 HKD

B+
Cheapest Retailer
-
HK$9,117 HKD
$1,162 USD
Final sale: no returns
B+
Retailer 2
-
HK$9,344 HKD
$1,191 USD
View
B+
Retailer 3
-
HK$9,454 HKD
$1,205 USD
View
B+
Retailer 4
-
HK$9,478 HKD
$1,208 USD
View
B+
Retailer 5
-
HK$9,689 HKD
$1,235 USD
View
B+
Retailer 6
-
HK$9,878 HKD
$1,259 USD
View
B+
Retailer 7
-
HK$10,254 HKD
$1,307 USD
View
B
Retailer 8
-
HK$10,788 HKD
$1,375 USD
View
B
Retailer 9
-
HK$11,392 HKD
$1,452 USD
View
B+
Retailer 10
-
HK$11,769 HKD
$1,500 USD
View
B+
Retailer 11
-
HK$11,769 HKD
$1,500 USD
View
B+
Retailer 12
-
HK$12,081 HKD
£1,212 GBP
View
B
Retailer 13
-
HK$12,161 HKD
$1,550 USD
View
B
Retailer 14
-
HK$12,357 HKD
$1,575 USD
View
B
Retailer 15
-
HK$14,087 HKD
€1,710 EUR
View
Retailer 16
-
HK$14,223 HKD
A$2,789 AUD
View
Price last confirmed 26 days ago
B
Retailer 17
-
HK$16,122 HKD
ZAR 33,196 ZAR
View
B
Retailer 18
-
HK$17,794 HKD
CA$3,150 CAD
View
B
Retailer 19
-
HK$19,968 HKD
£2,004 GBP
View
Most Expensive
B
NZ Jewellers
abd4e079-4c0d-4db3-8fbc-485f90a6eab7 · Oct 30
HK$26,589 HKD
$3,389 USD
View
19 more retailers have this diamond
Prices start from HK$9,117 HKDSave up to HK$17,472 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.

B+
0.80ct Round
HK$9,117 HKD