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Radiant|Natural|GIA

1.22ct J SI2 Radiant Natural Diamond

ID • J/SI2 • GIA 1242011830

Certificate GIA 1242011830

Diamond specifications and retailer prices

From HK$11,147 HKD
As of November 1, 2026
Save HK$15,487 HKD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$33,697 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.22ct natural radiant diamond

This 1.22ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242011830. Listed at 11 retailers as of November 1, 2026, with a 139% 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

1.22
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242011830
Dimensions6.86 × 5.26 × 3.66 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
6.86 mm5.26 mm1.22 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242011830
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.6%

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 1
Current: HK$20,842 HKD|Low: HK$11,147 HKD|High: HK$29,075 HKD|Avg: HK$17,751 HKD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6HK$11,147 HKD
Retailer 3HK$14,201 HKD
Retailer 5HK$14,271 HKD
Retailer 4HK$15,293 HKD
Retailer 9HK$15,647 HKD
Retailer 2HK$16,281 HKD
Retailer 1HK$20,842 HKD
Retailer 8HK$23,295 HKD
Retailer 7HK$26,634 HKD

40 data points across 9 retailers

11 retailersHK$11,147 HKD to HK$26,634 HKD

A
Cheapest Retailer
-
HK$11,147 HKD
B+
Retailer 2
-
HK$14,201 HKD
$1,810 USD
View
Final sale: no returns
A
Retailer 3
-
HK$14,271 HKD
$1,819 USD
View
B+
Retailer 4
-
HK$15,293 HKD
£1,535 GBP
View
Retailer 5
-
HK$15,647 HKD
SGD 2,695 SGD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
HK$16,281 HKD
$2,075 USD
View
B+
Retailer 7
-
HK$16,360 HKD
A$3,208 AUD
View
B
Retailer 8
-
HK$20,842 HKD
€2,530 EUR
View
Retailer 9
-
HK$23,295 HKD
$2,969 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
HK$26,634 HKD
£2,673 GBP
View
Most Expensive
NZ Jewellers
58ab9090-570d-4dea-846e-9cbc3aff401d · Sep 30
HK$33,697 HKD
$4,295 USD
View
Price last confirmed 32 days ago
10 more retailers have this diamond
Prices start from HK$11,147 HKDSave up to HK$15,487 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
1.22ct Radiant
HK$11,147 HKD