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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 $2,521 NZD
HK$11,100 HKD
As of November 1, 2026
Save $3,502 NZD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,621 NZD 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: $3,227 NZD|Low: $2,521 NZD|High: $6,575 NZD|Avg: $4,016 NZD|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$2,521 NZD
Retailer 6$3,172 NZD
Retailer 1$3,227 NZD
Retailer 5$3,389 NZD
Retailer 9$3,538 NZD
Retailer 3$3,644 NZD
Retailer 7$4,674 NZD
Retailer 8$5,268 NZD
Retailer 4$6,023 NZD

39 data points across 9 retailers

11 retailers$2,521 NZD to $6,023 NZD

A
Cheapest Retailer
-
$2,521 NZD
HK$11,100 HKD
B+
Retailer 2
-
$3,172 NZD
$1,788 USD
View
Final sale: no returns
A
Retailer 3
-
$3,227 NZD
$1,819 USD
View
A
Retailer 4
-
$3,389 NZD
£1,504 GBP
View
Retailer 5
-
$3,538 NZD
SGD 2,695 SGD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$3,644 NZD
$2,054 USD
View
B+
Retailer 7
-
$3,700 NZD
A$3,208 AUD
View
B+
Retailer 8
-
$4,674 NZD
€2,509 EUR
View
Retailer 9
-
$5,268 NZD
$2,969 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$6,023 NZD
£2,673 GBP
View
Most Expensive
NZ Jewellers
58ab9090-570d-4dea-846e-9cbc3aff401d · Sep 30
$7,621 NZD
$4,295 USD
View
Price last confirmed 32 days ago
10 more retailers have this diamond
Prices start from $2,521 NZDSave up to $3,502 NZD

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
$2,521 NZD