Radiant|Natural|GIA

1.21ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 2245114745

Certificate GIA 2245114745

Diamond specifications and retailer prices

From $1,953 USD
As of November 4, 2026
Save $1,579 USD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,532 USD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2245114745. Listed at 11 retailers as of November 4, 2026, with prices from $1,953 to $3,532, a $1,579 spread on the same certified stone. Helzberg Diamonds lists it at $3,532. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245114745
Dimensions7.09 × 5.43 × 3.74 mm
L/W Ratio1.31
Top View
7.09 mm5.43 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245114745
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,532 USD|Low: $1,953 USD|High: $3,532 USD|Avg: $2,407 USD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9$1,953 USD
Retailer 10$1,970 USD
Retailer 8$1,976 USD
Retailer 3$2,145 USD
Retailer 2$2,154 USD
Retailer 5$2,344 USD
Retailer 11$2,504 USD
Retailer 4$2,768 USD
Retailer 7$3,004 USD
Retailer 6$3,242 USD
Helzberg Diamonds$3,532 USD

8 data points across 11 retailers

11 retailers$1,953 USD to $3,532 USD

B+
Cheapest Retailer
-
$1,953 USD
B+
Retailer 2
-
$1,970 USD
View
B+
Retailer 3
-
$1,976 USD
View
B+
Retailer 4
-
$2,145 USD
View
B+
Retailer 5
-
$2,154 USD
View
B+
Retailer 6
-
$2,344 USD
View
B
Retailer 7
-
$2,504 USD
View
B
Retailer 8
-
$2,768 USD
View
B
Retailer 9
-
$3,004 USD
View
B
Retailer 10
-
$3,242 USD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLHHKNKL · Nov 6
$3,532 USD
View
10 more retailers have this diamond
Prices start from $1,953 USDSave up to $1,579 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.21ct Radiant
$1,953 USD