Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 3555645736

Certificate GIA 3555645736

Diamond specifications and retailer prices

From HK$17,971 HKD
As of November 7, 2026
18 retailers carry this diamond
Most expensive: HK$36,232 HKD at NZ Jewellers · As of September 20, 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 3555645736. Listed at 18 retailers as of November 7, 2026. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555645736
Dimensions7.33 × 5.23 × 3.50 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cloud, Needle, Natural
Top View
7.33 mm5.23 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555645736
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 7
Current: HK$35,370 HKD|Low: HK$13,308 HKD|High: HK$35,370 HKD|Avg: HK$19,076 HKD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 22
Retailer 23
Retailer 24
October 22, 2026
Retailer 24HK$13,731 HKD
Retailer 3HK$14,311 HKD
Retailer 20HK$14,578 HKD
Retailer 12HK$15,581 HKD
Retailer 9HK$15,683 HKD
Retailer 10HK$16,302 HKD
Retailer 7HK$16,717 HKD
Retailer 8HK$16,921 HKD
Retailer 11HK$16,921 HKD
Retailer 22HK$17,046 HKD
Retailer 23HK$17,791 HKD
Retailer 15HK$18,003 HKD
Retailer 21HK$18,081 HKD
Retailer 14HK$19,523 HKD
Retailer 4HK$19,829 HKD
Retailer 5HK$20,942 HKD
Retailer 17HK$21,192 HKD
Retailer 16HK$21,310 HKD
Retailer 2HK$21,435 HKD
Retailer 13HK$22,493 HKD
Retailer 18HK$22,493 HKD
Retailer 19HK$23,277 HKD
Retailer 6HK$29,915 HKD
NZ JewellersHK$35,370 HKD

20 data points across 24 retailers

18 retailers

Retailer 1
-
HK$15,581 HKD
Price last confirmed 31 days ago
Retailer 2
-
HK$16,921 HKD
View
Price last confirmed 30 days ago
Retailer 3
-
HK$16,921 HKD
View
Price last confirmed 31 days ago
Retailer 4
-
HK$17,328 HKD
View
Price last confirmed 43 days ago
Retailer 5
-
HK$17,791 HKD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
HK$17,971 HKD
View
Retailer 7
-
HK$18,128 HKD
View
Price last confirmed 38 days ago
Retailer 8
-
HK$19,523 HKD
View
Price last confirmed 31 days ago
Retailer 9
-
HK$19,993 HKD
View
Price last confirmed 46 days ago
Retailer 10
-
HK$21,192 HKD
View
Price last confirmed 34 days ago
Retailer 11
-
HK$21,310 HKD
View
Price last confirmed 32 days ago
Retailer 12
-
HK$21,435 HKD
View
Price last confirmed 8 days ago
Retailer 13
-
HK$22,493 HKD
View
Price last confirmed 9 days ago
Retailer 14
-
HK$22,493 HKD
View
Price last confirmed 10 days ago
Retailer 15
-
HK$23,277 HKD
View
Price last confirmed 10 days ago
Retailer 16
-
HK$29,915 HKD
View
Price last confirmed 30 days ago
Retailer 17
-
HK$35,370 HKD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
22cc3872-e67f-46b2-a85a-2e58662edd0e · Sep 20
HK$36,232 HKD
$4,623 USD
View
Price last confirmed 47 days ago
17 more retailers have this diamond
Prices start from HK$17,971 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$17,971 HKD