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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6405725798

Certificate GIA 6405725798

Diamond specifications and retailer prices

From HK$7,549 HKD
₹91,638 INR
As of November 1, 2026
Save HK$17,196 HKD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$24,745 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 6405725798. Listed at 21 retailers as of October 30, 2026, with prices from HK$7,549 to HK$24,745, a HK$17,196 spread on the same certified stone. NZ Jewellers lists it at HK$24,745. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6405725798
Dimensions5.94 × 5.91 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.94 mm5.91 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405725798
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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 1
Current: HK$11,523 HKD|Low: HK$7,531 HKD|High: HK$27,446 HKD|Avg: HK$12,187 HKD|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6HK$7,549 HKD
Retailer 2HK$9,360 HKD
Retailer 11HK$9,399 HKD
Retailer 12HK$9,493 HKD
Retailer 4HK$10,144 HKD
Retailer 9HK$11,062 HKD
Retailer 1HK$11,523 HKD
Retailer 10HK$12,056 HKD
Retailer 5HK$13,115 HKD
Retailer 3HK$13,266 HKD
Retailer 8HK$15,007 HKD
Retailer 7HK$18,583 HKD

33 data points across 12 retailers

21 retailersHK$7,549 HKD to HK$24,745 HKD

A
Cheapest Retailer
-
HK$7,549 HKD
₹91,638 INR
Retailer 2
-
HK$7,833 HKD
View
Price last confirmed 58 days ago
B+
Retailer 3
-
HK$9,054 HKD
$1,154 USD
View
B+
Retailer 4
-
HK$9,360 HKD
$1,193 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$9,399 HKD
$1,198 USD
View
Retailer 6
-
HK$9,493 HKD
$1,210 USD
View
Price last confirmed 7 days ago
Retailer 7
-
HK$10,144 HKD
$1,293 USD
View
Price last confirmed 39 days ago
Retailer 8
-
HK$10,144 HKD
$1,293 USD
View
Price last confirmed 32 days ago
B+
Retailer 9
-
HK$10,144 HKD
$1,293 USD
View
B+
Retailer 10
-
HK$11,062 HKD
$1,410 USD
View
B
Retailer 11
-
HK$11,204 HKD
$1,428 USD
View
B
Retailer 12
-
HK$11,523 HKD
£1,156 GBP
View
B+
Retailer 13
-
HK$11,706 HKD
$1,492 USD
View
Retailer 14
-
HK$11,706 HKD
$1,492 USD
View
Price last confirmed 41 days ago
B
Retailer 15
-
HK$12,056 HKD
£1,210 GBP
View
B
Retailer 16
-
HK$13,115 HKD
€1,592 EUR
View
Retailer 17
-
HK$13,266 HKD
A$2,601 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
HK$15,007 HKD
ZAR 30,900 ZAR
View
B
Retailer 19
-
HK$18,583 HKD
£1,865 GBP
View
Retailer 20
-
HK$24,745 HKD
$3,154 USD
View
Price last confirmed 41 days ago
Most Expensive
B
NZ Jewellers
1e096078-c2b6-44c9-9d1f-7ea2608ddbbb · Oct 30
HK$24,745 HKD
$3,154 USD
View
20 more retailers have this diamond
Prices start from HK$7,549 HKDSave up to HK$17,196 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$7,549 HKD