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Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2126497381

Certificate GIA 2126497381

Diamond specifications and retailer prices

From $3,832 SGD
As of November 3, 2026
Save $9,945 SGD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,777 SGD at Jared · As of November 6, 2026
View at Jared

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 2126497381. Listed at 13 retailers as of November 3, 2026, with prices from $3,832 to $13,777, a $9,945 spread on the same certified stone. Jared lists it at $13,777. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2126497381
Dimensions6.86 × 6.82 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.86 mm6.82 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2126497381
Side View
Table 59.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 61.7%

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 3
Current: $13,777 SGD|Low: $3,832 SGD|High: $13,777 SGD|Avg: $10,424 SGD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 6$3,832 SGD
Retailer 7$5,613 SGD
Retailer 9$9,930 SGD
Retailer 5$10,003 SGD
Retailer 12$10,260 SGD
Retailer 8$10,901 SGD
Retailer 11$10,942 SGD
Retailer 3$13,329 SGD
Retailer 4$13,329 SGD
Retailer 10$13,459 SGD
Retailer 2$13,470 SGD
Jared$13,777 SGD

33 data points across 12 retailers

13 retailers$3,832 SGD to $13,777 SGD

A
Cheapest Retailer
-
$3,832 SGD
B+
Retailer 2
-
$5,613 SGD
View
B
Retailer 3
-
$9,930 SGD
View
B
Retailer 4
-
$10,003 SGD
View
B
Retailer 5
-
$10,260 SGD
View
B
Retailer 6
-
$10,901 SGD
View
B
Retailer 7
-
$10,942 SGD
View
B
Retailer 8
-
$13,329 SGD
View
B
Retailer 9
-
$13,329 SGD
View
B
Retailer 10
-
$13,459 SGD
View
B
Retailer 11
-
$13,470 SGD
View
Most Expensive
B
Jared
128855742 · Nov 6
$13,777 SGD
$10,750 USD
View
11 more retailers have this diamond
Prices start from $3,832 SGDSave up to $9,945 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
$3,832 SGD