CaratHunter
Plans
Radiant|Natural|GIA

1.21ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 2245114745

Certificate GIA 2245114745

Diamond specifications and retailer prices

From $2,503 SGD
As of November 4, 2026
Save $2,024 SGD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,527 SGD 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 $2,503 to $4,527, a $2,024 spread on the same certified stone. Helzberg Diamonds lists it at $4,527. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,527 SGD|Low: $2,503 SGD|High: $4,527 SGD|Avg: $3,085 SGD
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$2,503 SGD
Retailer 10$2,525 SGD
Retailer 8$2,532 SGD
Retailer 3$2,749 SGD
Retailer 2$2,761 SGD
Retailer 5$3,004 SGD
Retailer 11$3,209 SGD
Retailer 4$3,547 SGD
Retailer 7$3,850 SGD
Retailer 6$4,155 SGD
Helzberg Diamonds$4,527 SGD

8 data points across 11 retailers

11 retailers$2,503 SGD to $4,527 SGD

B+
Cheapest Retailer
-
$2,503 SGD
B+
Retailer 2
-
$2,525 SGD
View
B+
Retailer 3
-
$2,532 SGD
View
B+
Retailer 4
-
$2,749 SGD
View
B+
Retailer 5
-
$2,761 SGD
View
B+
Retailer 6
-
$3,004 SGD
View
B
Retailer 7
-
$3,209 SGD
View
B
Retailer 8
-
$3,547 SGD
View
B
Retailer 9
-
$3,850 SGD
View
B
Retailer 10
-
$4,155 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLHHKNKL · Nov 6
$4,527 SGD
$3,532 USD
View
10 more retailers have this diamond
Prices start from $2,503 SGDSave up to $2,024 SGD

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
$2,503 SGD