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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 $2,207 NZD
HK$9,700 HKD
As of November 1, 2026
Save $3,091 NZD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,737 NZD 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 140% 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
Colour
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: Nov 1
Current: $2,207 NZD|Low: $2,184 NZD|High: $5,781 NZD|Avg: $3,718 NZD|-14.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 1$2,207 NZD
Retailer 4$3,112 NZD
Retailer 5$3,155 NZD
Retailer 6$3,463 NZD
Retailer 3$4,609 NZD
Retailer 2$5,298 NZD

25 data points across 6 retailers

9 retailers$2,207 NZD to $5,298 NZD

A
Cheapest Retailer
-
$2,207 NZD
HK$9,700 HKD
A
Retailer 2
-
$3,112 NZD
SGD 2,366 SGD
View
A
Retailer 3
-
$3,155 NZD
$1,775 USD
View
Final sale: no returns
Retailer 4
-
$3,172 NZD
$1,785 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$3,361 NZD
$1,891 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$3,463 NZD
A$2,998 AUD
View
B+
Retailer 7
-
$4,609 NZD
€2,470 EUR
View
B
Retailer 8
-
$5,298 NZD
£2,347 GBP
View
Most Expensive
NZ Jewellers
d6f8478e-c9f9-4db5-9966-67ece69127b4 · Oct 6
$7,737 NZD
$4,353 USD
View
Price last confirmed 27 days ago
8 more retailers have this diamond
Prices start from $2,207 NZDSave up to $3,091 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
1.21ct Radiant
$2,207 NZD