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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 €1,272 EUR
HK$11,100 HKD
As of November 1, 2026
Save €1,767 EUR (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,844 EUR 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: €2,378 EUR|Low: €1,272 EUR|High: €3,317 EUR|Avg: €2,025 EUR|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6€1,272 EUR
Retailer 3€1,620 EUR
Retailer 5€1,628 EUR
Retailer 4€1,745 EUR
Retailer 9€1,785 EUR
Retailer 2€1,857 EUR
Retailer 1€2,378 EUR
Retailer 8€2,658 EUR
Retailer 7€3,039 EUR

40 data points across 9 retailers

11 retailers€1,272 EUR to €3,039 EUR

A
Cheapest Retailer
-
€1,272 EUR
HK$11,100 HKD
B+
Retailer 2
-
€1,620 EUR
$1,810 USD
View
Final sale: no returns
A
Retailer 3
-
€1,628 EUR
$1,819 USD
View
B+
Retailer 4
-
€1,745 EUR
£1,535 GBP
View
Retailer 5
-
€1,785 EUR
SGD 2,695 SGD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
€1,857 EUR
$2,075 USD
View
B+
Retailer 7
-
€1,866 EUR
A$3,208 AUD
View
B
Retailer 8
-
€2,378 EUR
View
Retailer 9
-
€2,658 EUR
$2,969 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
€3,039 EUR
£2,673 GBP
View
Most Expensive
NZ Jewellers
58ab9090-570d-4dea-846e-9cbc3aff401d · Sep 30
€3,844 EUR
$4,295 USD
View
Price last confirmed 32 days ago
10 more retailers have this diamond
Prices start from €1,272 EURSave up to €1,767 EUR

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
€1,272 EUR