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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1515243600

Certificate GIA 1515243600

Diamond specifications and retailer prices

From HK$17,391 HKD
As of November 5, 2026
Save HK$28,755 HKD (62%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$46,147 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct 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 1515243600. Listed at 22 retailers as of November 3, 2026, with prices from HK$17,391 to HK$46,147, a HK$28,755 spread on the same certified stone. NZ Jewellers lists it at HK$46,147. 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1515243600
Dimensions7.14 × 5.33 × 3.65 mm
L/W Ratio1.34
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
7.14 mm5.33 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515243600
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.3%

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$19,946 HKD|Low: HK$17,391 HKD|High: HK$39,085 HKD|Avg: HK$23,873 HKD
Retailer 1
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 11HK$17,391 HKD
Retailer 12HK$17,603 HKD
Retailer 6HK$18,065 HKD
Retailer 4HK$18,300 HKD
Retailer 13HK$18,567 HKD
Retailer 1HK$19,946 HKD
Retailer 14HK$20,683 HKD
Retailer 15HK$21,827 HKD
Retailer 2HK$22,000 HKD
Retailer 10HK$22,486 HKD
Retailer 3HK$24,304 HKD
Retailer 7HK$24,727 HKD
Retailer 8HK$24,829 HKD
Retailer 9HK$25,934 HKD
Retailer 5HK$38,662 HKD

33 data points across 15 retailers

22 retailersHK$17,391 HKD to HK$46,147 HKD

B+
Cheapest Retailer
-
HK$17,391 HKD
B+
Retailer 2
-
HK$17,603 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$18,065 HKD
View
B+
Retailer 4
-
HK$18,300 HKD
View
B+
Retailer 5
-
HK$18,449 HKD
View
B+
Retailer 6
-
HK$18,567 HKD
View
B
Retailer 7
-
HK$19,946 HKD
View
Retailer 8
-
HK$20,001 HKD
View
Price last confirmed 9 days ago
B
Retailer 9
-
HK$20,001 HKD
View
B+
Retailer 10
-
HK$20,683 HKD
View
B+
Retailer 11
-
HK$21,333 HKD
View
B+
Retailer 12
-
HK$21,827 HKD
View
B+
Retailer 13
-
HK$22,000 HKD
View
B
Retailer 14
-
HK$22,344 HKD
View
B+
Retailer 15
-
HK$22,486 HKD
View
B
Retailer 16
-
HK$23,512 HKD
View
B
Retailer 17
-
HK$24,304 HKD
View
Retailer 18
-
HK$24,727 HKD
View
Price last confirmed 31 days ago
B
Retailer 19
-
HK$24,829 HKD
View
B
Retailer 20
-
HK$25,934 HKD
View
B
Retailer 21
-
HK$38,662 HKD
View
Most Expensive
B
NZ Jewellers
76458eb6-69a0-4a20-85c4-dab2693a0be1 · Nov 3
HK$46,147 HKD
$5,888 USD
View
21 more retailers have this diamond
Prices start from HK$17,391 HKDSave up to HK$28,755 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+
1.20ct Radiant
HK$17,391 HKD