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Radiant|Natural|GIA

1.21ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 6552460630

Certificate GIA 6552460630

Diamond specifications and retailer prices

From HK$17,861 HKD
As of November 4, 2026
Save HK$15,933 HKD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$40,449 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552460630. Listed at 12 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552460630
Dimensions7.19 × 5.07 × 3.58 mm
L/W Ratio1.42
Girdle conditionPolished
Culet sizeNone
Key to symbols
Pinpoint
Top View
7.19 mm5.07 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552460630
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$23,614 HKD|Low: HK$14,883 HKD|High: HK$34,296 HKD|Avg: HK$23,413 HKD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6HK$17,861 HKD
Retailer 4HK$19,358 HKD
Retailer 2HK$20,463 HKD
Retailer 1HK$23,614 HKD
Retailer 7HK$23,818 HKD
Retailer 5HK$24,061 HKD
Retailer 3HK$33,795 HKD

44 data points across 7 retailers

12 retailersHK$17,861 HKD to HK$33,795 HKD

B
Cheapest Retailer
-
HK$17,861 HKD
Final sale: no returns
Retailer 2
-
HK$19,343 HKD
View
Price last confirmed 30 days ago
Retailer 3
-
HK$19,343 HKD
View
Price last confirmed 30 days ago
B
Retailer 4
-
HK$19,358 HKD
View
Retailer 5
-
HK$20,236 HKD
View
Price last confirmed 38 days ago
B
Retailer 6
-
HK$20,463 HKD
View
Retailer 7
-
HK$22,321 HKD
View
Price last confirmed 39 days ago
B
Retailer 8
-
HK$23,614 HKD
View
Retailer 9
-
HK$23,818 HKD
View
Price last confirmed 31 days ago
B
Retailer 10
-
HK$24,061 HKD
View
B
Retailer 11
-
HK$33,795 HKD
View
Most Expensive
NZ Jewellers
e8365d4d-539f-43df-b37b-606d08b7042a · Sep 30
HK$40,449 HKD
$5,161 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from HK$17,861 HKDSave up to HK$15,933 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
1.21ct Radiant
HK$17,861 HKD