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Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 3545917764

Certificate GIA 3545917764

Diamond specifications and retailer prices

From $3,887 SGD
As of November 4, 2026
Save $3,941 SGD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,828 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3545917764. Listed at 15 retailers as of November 4, 2026, with prices from $3,887 to $7,828, a $3,941 spread on the same certified stone. NZ Jewellers lists it at $7,828. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 3545917764
Dimensions6.79 × 6.84 × 4.22 mm
L/W Ratio1.01
Star length50%
Top View
6.79 mm6.84 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545917764
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.9%

Caratlytics Score

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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 4
Current: $4,666 SGD|Low: $3,449 SGD|High: $7,514 SGD|Avg: $4,442 SGD|+14.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 2$3,449 SGD
Retailer 3$3,494 SGD
Retailer 13$3,887 SGD
Retailer 4$4,011 SGD
Retailer 12$4,019 SGD
Retailer 5$4,031 SGD
Retailer 7$4,041 SGD
Retailer 15$4,201 SGD
Retailer 11$4,466 SGD
Retailer 14$4,466 SGD
Retailer 1$4,666 SGD
Retailer 6$4,830 SGD
Retailer 8$4,953 SGD
Retailer 10$6,550 SGD
Retailer 9$7,494 SGD

26 data points across 15 retailers

15 retailers$3,887 SGD to $7,828 SGD

A
Cheapest Retailer
-
$3,887 SGD
Retailer 2
-
$4,011 SGD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$4,019 SGD
View
Retailer 4
-
$4,031 SGD
View
Price last confirmed 39 days ago
Retailer 5
-
$4,186 SGD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$4,201 SGD
View
B+
Retailer 7
-
$4,466 SGD
View
B+
Retailer 8
-
$4,466 SGD
View
Retailer 9
-
$4,651 SGD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$4,666 SGD
View
B+
Retailer 11
-
$4,953 SGD
View
B
Retailer 12
-
$6,550 SGD
View
Retailer 13
-
$7,022 SGD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$7,494 SGD
View
Most Expensive
B
NZ Jewellers
cb97fc63-3e39-4e23-8bc3-dea6d76b86ca · Nov 5
$7,828 SGD
$6,108 USD
View
14 more retailers have this diamond
Prices start from $3,887 SGDSave up to $3,941 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 Round
$3,887 SGD