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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6441577858

Certificate GIA 6441577858

Diamond specifications and retailer prices

From HK$9,312 HKD
As of October 31, 2026
Save HK$22,273 HKD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$31,585 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6441577858. Listed at 17 retailers as of October 31, 2026, with prices from HK$9,312 to HK$31,585, a HK$22,273 spread on the same certified stone. NZ Jewellers lists it at HK$31,585. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6441577858
Dimensions6.40 × 6.33 × 4.00 mm
L/W Ratio1.01
Top View
6.40 mm6.33 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6441577858
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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$12,388 HKD|Low: HK$9,289 HKD|High: HK$22,963 HKD|Avg: HK$14,033 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5HK$9,312 HKD
Retailer 6HK$9,438 HKD
Retailer 7HK$11,948 HKD
Retailer 1HK$12,388 HKD
Retailer 2HK$14,200 HKD
Retailer 4HK$16,028 HKD
Retailer 3HK$22,680 HKD

35 data points across 7 retailers

17 retailersHK$9,312 HKD to HK$31,585 HKD

A
Cheapest Retailer
-
HK$9,312 HKD
A
Retailer 2
-
HK$9,438 HKD
View
Retailer 3
-
HK$11,658 HKD
View
Price last confirmed 82 days ago
B+
Retailer 4
-
HK$11,948 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$12,097 HKD
View
A
Retailer 6
-
HK$12,388 HKD
View
B+
Retailer 7
-
HK$12,952 HKD
View
Retailer 8
-
HK$12,952 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$13,078 HKD
View
B+
Retailer 10
-
HK$13,549 HKD
View
B+
Retailer 11
-
HK$14,168 HKD
View
B+
Retailer 12
-
HK$14,200 HKD
View
B+
Retailer 13
-
HK$14,945 HKD
View
B+
Retailer 14
-
HK$16,028 HKD
View
B
Retailer 15
-
HK$22,680 HKD
View
B
Retailer 16
-
HK$24,375 HKD
View
Most Expensive
C
NZ Jewellers
cdd2c3d5-0205-49b5-b7d2-5964aef1b29c · Nov 5
HK$31,585 HKD
$4,026 USD
View
16 more retailers have this diamond
Prices start from HK$9,312 HKDSave up to HK$22,273 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
1.00ct Round
HK$9,312 HKD