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Radiant|Natural|GIA

1.21ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 2556502880

Certificate GIA 2556502880

Diamond specifications and retailer prices

From $1,717 CAD
HK$9,600 HKD
As of October 30, 2026
Save $2,447 CAD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,081 CAD at NZ Jewellers · As of October 6, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556502880. Listed at 9 retailers as of October 29, 2026, with a 143% 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

1.21
Carat
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle57.56°
OriginNatural
Grading LabGIA
CertificateGIA 2556502880
Dimensions7.41 × 5.30 × 3.65 mm
L/W Ratio1.40
Key to symbols
Crystal, Cloud, Feather
Top View
7.41 mm5.30 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556502880
Side View
Table 61.0%CrownGirdle: ThickPavilion 57.56°Culet: NoneDepth 68.9%

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: Oct 30
Current: $4,164 CAD|Low: $1,717 CAD|High: $4,543 CAD|Avg: $2,924 CAD|-8.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3$1,717 CAD
Retailer 4$2,446 CAD
Retailer 5$2,479 CAD
Retailer 6$2,722 CAD
Retailer 2$3,623 CAD
Retailer 1$4,164 CAD

24 data points across 6 retailers

9 retailers$1,717 CAD to $4,164 CAD

A
Cheapest Retailer
-
$1,717 CAD
HK$9,600 HKD
A
Retailer 2
-
$2,446 CAD
SGD 2,366 SGD
View
A
Retailer 3
-
$2,479 CAD
$1,775 USD
View
Final sale: no returns
Retailer 4
-
$2,493 CAD
$1,785 USD
View
Price last confirmed 24 days ago
Retailer 5
-
$2,642 CAD
$1,891 USD
View
Price last confirmed 31 days ago
B+
Retailer 6
-
$2,722 CAD
A$2,998 AUD
View
B+
Retailer 7
-
$3,623 CAD
€2,470 EUR
View
B
Retailer 8
-
$4,164 CAD
£2,347 GBP
View
Most Expensive
NZ Jewellers
d6f8478e-c9f9-4db5-9966-67ece69127b4 · Oct 6
$6,081 CAD
$4,353 USD
View
Price last confirmed 25 days ago
8 more retailers have this diamond
Prices start from $1,717 CADSave up to $2,447 CAD

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
1.21ct Radiant
$1,717 CAD