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Round|Natural|GIA

0.80ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7518428781

Certificate GIA 7518428781

Diamond specifications and retailer prices

From HK$8,748 HKD
$1,115 USD
As of October 25, 2026
Save HK$9,935 HKD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$24,847 HKD at NZ Jewellers · As of October 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7518428781. Listed at 21 retailers as of October 25, 2026, with a 114% 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

0.80
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7518428781
Dimensions5.89 × 5.85 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.89 mm5.85 mm0.80 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7518428781
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 63.2%

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 25
Current: HK$10,039 HKD|Low: HK$7,100 HKD|High: HK$18,882 HKD|Avg: HK$11,203 HKD|+5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8HK$8,520 HKD
Retailer 7HK$8,748 HKD
Retailer 2HK$8,842 HKD
Retailer 9HK$8,858 HKD
Retailer 6HK$9,227 HKD
Retailer 10HK$9,674 HKD
Retailer 1HK$10,039 HKD
Retailer 3HK$13,562 HKD
Retailer 4HK$14,227 HKD
Retailer 5HK$18,683 HKD

37 data points across 10 retailers

21 retailersHK$8,748 HKD to HK$18,683 HKD

B+
Cheapest Retailer
-
HK$8,748 HKD
$1,115 USD
B+
Retailer 2
-
HK$8,842 HKD
$1,127 USD
View
B+
Retailer 3
-
HK$8,858 HKD
$1,129 USD
View
B+
Retailer 4
-
HK$9,062 HKD
$1,155 USD
View
B+
Retailer 5
-
HK$9,227 HKD
$1,176 USD
View
Retailer 6
-
HK$9,227 HKD
$1,176 USD
View
Price last confirmed 33 days ago
Retailer 7
-
HK$9,227 HKD
$1,176 USD
View
Price last confirmed 22 days ago
Retailer 8
-
HK$9,227 HKD
$1,176 USD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
HK$9,674 HKD
$1,233 USD
View
B+
Retailer 10
-
HK$9,942 HKD
$1,267 USD
View
B+
Retailer 11
-
HK$10,039 HKD
£1,008 GBP
View
Retailer 12
-
HK$10,647 HKD
$1,357 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
HK$10,647 HKD
$1,357 USD
View
B
Retailer 14
-
HK$10,670 HKD
$1,360 USD
View
B
Retailer 15
-
HK$10,670 HKD
$1,360 USD
View
B
Retailer 16
-
HK$11,062 HKD
$1,410 USD
View
B
Retailer 17
-
HK$13,562 HKD
£1,361 GBP
View
B
Retailer 18
-
HK$14,227 HKD
€1,727 EUR
View
B
Retailer 19
-
HK$18,683 HKD
£1,875 GBP
View
Retailer 20
-
HK$24,847 HKD
$3,167 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
01280d2d-e210-49bc-b0cf-4261d6adf45c · Oct 3
HK$24,847 HKD
$3,167 USD
View
Price last confirmed 28 days ago
20 more retailers have this diamond
Prices start from HK$8,748 HKDSave up to HK$9,935 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$8,748 HKD