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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 7548286172

Certificate GIA 7548286172

Diamond specifications and retailer prices

From HK$10,330 HKD
As of November 6, 2026
Save HK$14,679 HKD (59%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$35,300 HKD at NZ Jewellers · As of September 30, 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 7548286172. Listed at 19 retailers as of November 2, 2026, with a 142% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7548286172
Dimensions6.89 × 5.29 × 3.70 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural
Top View
6.89 mm5.29 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7548286172
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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 6
Current: HK$15,181 HKD|Low: HK$10,330 HKD|High: HK$25,589 HKD|Avg: HK$15,732 HKD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5HK$10,330 HKD
Retailer 4HK$10,910 HKD
Retailer 8HK$12,618 HKD
Retailer 9HK$13,527 HKD
Retailer 3HK$14,264 HKD
Retailer 6HK$14,397 HKD
Retailer 1HK$15,181 HKD
Retailer 2HK$17,501 HKD
Retailer 7HK$18,582 HKD
Retailer 10HK$25,009 HKD

32 data points across 10 retailers

19 retailersHK$10,330 HKD to HK$25,009 HKD

A
Cheapest Retailer
-
HK$10,330 HKD
A
Retailer 2
-
HK$10,910 HKD
View
A
Retailer 3
-
HK$12,618 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$13,527 HKD
View
A
Retailer 5
-
HK$13,661 HKD
View
A
Retailer 6
-
HK$13,676 HKD
View
A
Retailer 7
-
HK$14,264 HKD
View
A
Retailer 8
-
HK$14,397 HKD
View
Retailer 9
-
HK$14,476 HKD
View
Price last confirmed 30 days ago
Retailer 10
-
HK$14,476 HKD
View
Price last confirmed 30 days ago
Retailer 11
-
HK$15,142 HKD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
HK$15,181 HKD
View
B+
Retailer 13
-
HK$15,526 HKD
View
Retailer 14
-
HK$16,701 HKD
View
Price last confirmed 29 days ago
Retailer 15
-
HK$17,501 HKD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
HK$18,582 HKD
View
Retailer 17
-
HK$18,880 HKD
View
Price last confirmed 33 days ago
B
Retailer 18
-
HK$25,009 HKD
View
Most Expensive
NZ Jewellers
1f2a95a9-fe07-47c0-9727-c1747871d050 · Sep 30
HK$35,300 HKD
$4,504 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from HK$10,330 HKDSave up to HK$14,679 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
1.20ct Radiant
HK$10,330 HKD