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Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 3565212418

Certificate GIA 3565212418

Diamond specifications and retailer prices

From $3,100 SGD
As of November 6, 2026
Save $4,413 SGD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,513 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 3565212418. Listed at 17 retailers as of November 5, 2026, with prices from $3,100 to $7,513, a $4,413 spread on the same certified stone. NZ Jewellers lists it at $7,513. 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 angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3565212418
Dimensions6.74 × 6.80 × 4.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Knot
Top View
6.74 mm6.80 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565212418
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $7,513 SGD|Low: $3,100 SGD|High: $7,542 SGD|Avg: $4,600 SGD
NZ Jewellers
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 12$3,100 SGD
Retailer 17$3,301 SGD
Retailer 10$3,695 SGD
Retailer 13$3,763 SGD
Retailer 7$4,074 SGD
Retailer 15$4,279 SGD
Retailer 6$4,311 SGD
Retailer 9$4,311 SGD
Retailer 2$4,322 SGD
Retailer 5$4,338 SGD
Retailer 11$4,345 SGD
Retailer 14$4,346 SGD
Retailer 16$4,559 SGD
Retailer 8$4,611 SGD
Retailer 3$4,802 SGD
Retailer 4$7,192 SGD
NZ Jewellers$7,513 SGD

24 data points across 17 retailers

17 retailers$3,100 SGD to $7,513 SGD

A
Cheapest Retailer
-
$3,100 SGD
A
Retailer 2
-
$3,301 SGD
View
Final sale: no returns
A
Retailer 3
-
$3,695 SGD
View
A
Retailer 4
-
$3,763 SGD
View
A
Retailer 5
-
$4,074 SGD
View
A
Retailer 6
-
$4,279 SGD
View
Retailer 7
-
$4,311 SGD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$4,311 SGD
View
B+
Retailer 9
-
$4,322 SGD
View
B+
Retailer 10
-
$4,338 SGD
View
B+
Retailer 11
-
$4,345 SGD
View
B+
Retailer 12
-
$4,346 SGD
View
B+
Retailer 13
-
$4,559 SGD
View
B+
Retailer 14
-
$4,611 SGD
View
B+
Retailer 15
-
$4,802 SGD
View
B
Retailer 16
-
$7,192 SGD
View
Most Expensive
B
NZ Jewellers
3b8c8f14-8728-4fce-99c8-31d452c594d4 · Nov 5
$7,513 SGD
$5,862 USD
View
16 more retailers have this diamond
Prices start from $3,100 SGDSave up to $4,413 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
$3,100 SGD