Radiant|Natural|GIA

1.21ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 2556502880

Certificate GIA 2556502880

Diamond specifications and retailer prices

From $1,318 USD
HK$10,300 HKD
Save $1,887 USD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,205 USD at MOH London
View at MOH London

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 6 retailers, with prices from $1,318 to $3,205 at MOH London, a $1,887 spread on the same certified stone. 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
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $3,205 USD|Low: $1,318 USD|High: $3,252 USD|Avg: $2,057 USD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 30, 2026
Retailer 3$1,318 USD
Retailer 5$1,479 USD
Retailer 4$1,846 USD
Retailer 6$1,949 USD
Retailer 2$2,772 USD
MOH London$3,205 USD

16 data points across 6 retailers

6 retailers$1,318 USD to $3,205 USD

A
Cheapest Retailer
-
$1,318 USD
HK$10,300 HKD
A
Retailer 2
-
$1,479 USD
View
A
Retailer 3
-
$1,846 USD
SGD 2,494 SGD
View
B+
Retailer 4
-
$1,949 USD
A$2,998 AUD
View
B
Retailer 5
-
$2,772 USD
€2,640 EUR
View
Most Expensive
B
MOH London
5271EB2A7 · Sep 28
$3,205 USD
£2,524 GBP
View
5 more retailers have this diamond
Prices start from $1,318 USDSave up to $1,887 USD

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.

A
1.21ct Radiant
$1,318 USD