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Radiant|Natural|GIA

1.02ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1236810838

Certificate GIA 1236810838

Diamond specifications and retailer prices

From HK$16,819 HKD
As of November 5, 2026
Save HK$26,138 HKD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$42,957 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236810838. Listed at 17 retailers as of November 5, 2026, with prices from HK$16,819 to HK$42,957, a HK$26,138 spread on the same certified stone. NZ Jewellers lists it at HK$42,957. 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

1.02
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236810838
Dimensions6.38 × 5.22 × 3.70 mm
L/W Ratio1.22
Girdle conditionPolished
Cert comments
Clouds pinpoints and surface graining are not shown.
Key to symbols
Feather, Crystal
Top View
6.38 mm5.22 mm1.02 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236810838
Side View
Table 69.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.9%

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: Nov 5
Current: HK$42,957 HKD|Low: HK$17,180 HKD|High: HK$42,957 HKD|Avg: HK$23,180 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
November 7, 2026
Retailer 12HK$17,180 HKD
Retailer 11HK$17,955 HKD
Retailer 6HK$18,026 HKD
Retailer 3HK$18,575 HKD
Retailer 5HK$18,614 HKD
Retailer 7HK$18,614 HKD
Retailer 15HK$19,476 HKD
Retailer 14HK$20,283 HKD
Retailer 4HK$21,114 HKD
Retailer 2HK$21,741 HKD
Retailer 13HK$23,018 HKD
Retailer 9HK$25,080 HKD
Retailer 8HK$25,511 HKD
Retailer 10HK$35,895 HKD
NZ JewellersHK$42,957 HKD

44 data points across 15 retailers

17 retailersHK$16,819 HKD to HK$42,957 HKD

B+
Cheapest Retailer
-
HK$16,819 HKD
B+
Retailer 2
-
HK$17,180 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$17,955 HKD
View
B+
Retailer 4
-
HK$18,026 HKD
View
B+
Retailer 5
-
HK$18,575 HKD
View
B+
Retailer 6
-
HK$18,614 HKD
View
Retailer 7
-
HK$18,614 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$18,990 HKD
View
B
Retailer 9
-
HK$19,476 HKD
View
B
Retailer 10
-
HK$21,114 HKD
View
B
Retailer 11
-
HK$21,482 HKD
View
B
Retailer 12
-
HK$21,741 HKD
View
Retailer 13
-
HK$23,018 HKD
View
Price last confirmed 31 days ago
B
Retailer 14
-
HK$25,080 HKD
View
B
Retailer 15
-
HK$25,511 HKD
View
B
Retailer 16
-
HK$35,895 HKD
View
Most Expensive
B
NZ Jewellers
6cfd1771-c680-41ac-b95e-bfae3f91d2e6 · Nov 5
HK$42,957 HKD
$5,481 USD
View
16 more retailers have this diamond
Prices start from HK$16,819 HKDSave up to HK$26,138 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+
1.02ct Radiant
HK$16,819 HKD