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Radiant|Natural|GIA

1.21ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 6535454075

Certificate GIA 6535454075

Diamond specifications and retailer prices

From $3,150 SGD
As of November 7, 2026
Save $3,917 SGD (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,067 SGD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535454075. Listed at 7 retailers as of November 3, 2026, with prices from $3,150 to $7,067, a $3,917 spread on the same certified stone. NZ Jewellers lists it at $7,067. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.59°
Pavilion angle30.55°
OriginNatural
Grading LabGIA
CertificateGIA 6535454075
Dimensions7.07 × 5.31 × 3.48 mm
L/W Ratio1.33
Top View
7.07 mm5.31 mm1.21 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6535454075
Side View
Table 69.0%Crown 44.59°Girdle: ThickPavilion 30.55°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $7,067 SGD|Low: $3,082 SGD|High: $7,178 SGD|Avg: $4,354 SGD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 5$3,150 SGD
Retailer 2$3,345 SGD
Retailer 6$3,380 SGD
Retailer 4$3,510 SGD
Retailer 7$3,567 SGD
Retailer 3$5,890 SGD
NZ Jewellers$7,067 SGD

42 data points across 7 retailers

7 retailers$3,150 SGD to $7,067 SGD

A
Cheapest Retailer
-
$3,150 SGD
A
Retailer 2
-
$3,345 SGD
View
A
Retailer 3
-
$3,380 SGD
View
A
Retailer 4
-
$3,510 SGD
View
A
Retailer 5
-
$3,567 SGD
View
B
Retailer 6
-
$5,890 SGD
View
Most Expensive
B
NZ Jewellers
18e3931d-a2ec-49e6-b7f6-3e20b5d3d02a · Nov 3
$7,067 SGD
$5,514 USD
View
6 more retailers have this diamond
Prices start from $3,150 SGDSave up to $3,917 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.

A
1.21ct Radiant
$3,150 SGD