Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6203521683

Certificate GIA 6203521683

Diamond specifications and retailer prices

From HK$5,825 HKD
As of October 31, 2026
Save HK$8,484 HKD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$24,808 HKD at NZ Jewellers · As of October 20, 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 6203521683. Listed at 17 retailers as of October 29, 2026, with a 146% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6203521683
Dimensions5.87 × 5.92 × 3.69 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.87 mm5.92 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6203521683
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.7%

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: Oct 31
Current: HK$24,808 HKD|Low: HK$5,724 HKD|High: HK$24,808 HKD|Avg: HK$9,904 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
October 31, 2026
Retailer 9HK$5,825 HKD
Retailer 2HK$5,829 HKD
Retailer 5HK$6,371 HKD
Retailer 14HK$7,163 HKD
Retailer 6HK$7,908 HKD
Retailer 4HK$8,041 HKD
Retailer 3HK$8,418 HKD
Retailer 16HK$8,944 HKD
Retailer 10HK$9,056 HKD
Retailer 7HK$9,132 HKD
Retailer 15HK$9,689 HKD
Retailer 12HK$10,092 HKD
Retailer 8HK$10,345 HKD
Retailer 11HK$11,492 HKD
Retailer 13HK$14,308 HKD
NZ JewellersHK$24,808 HKD

31 data points across 16 retailers

17 retailersHK$5,825 HKD to HK$14,308 HKD

A
Cheapest Retailer
-
HK$5,825 HKD
A
Retailer 2
-
HK$5,829 HKD
₹70,762 INR
View
A
Retailer 3
-
HK$6,371 HKD
$812 USD
View
A
Retailer 4
-
HK$7,163 HKD
$913 USD
View
Final sale: no returns
Retailer 5
-
HK$7,908 HKD
$1,008 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
HK$8,041 HKD
SGD 1,385 SGD
View
Retailer 7
-
HK$8,214 HKD
$1,047 USD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
HK$8,418 HKD
$1,073 USD
View
B+
Retailer 9
-
HK$8,944 HKD
$1,140 USD
View
B+
Retailer 10
-
HK$9,056 HKD
£909 GBP
View
Retailer 11
-
HK$9,132 HKD
$1,164 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
HK$9,689 HKD
$1,235 USD
View
B+
Retailer 13
-
HK$10,092 HKD
€1,225 EUR
View
Retailer 14
-
HK$10,345 HKD
A$2,029 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
HK$11,492 HKD
ZAR 23,663 ZAR
View
B
Retailer 16
-
HK$14,308 HKD
£1,436 GBP
View
Most Expensive
NZ Jewellers
ce6df165-cb18-4743-893b-a0eae58deb8d · Oct 20
HK$24,808 HKD
$3,162 USD
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from HK$5,825 HKDSave up to HK$8,484 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
0.80ct Round
HK$5,825 HKD