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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 €2,678 EUR
As of November 3, 2026
Save €6,950 EUR (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €9,628 EUR 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 14 retailers as of November 3, 2026, with prices from €2,678 to €9,628, a €6,950 spread on the same certified stone. Jared lists it at €9,628. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: €9,628 EUR|Low: €2,678 EUR|High: €9,628 EUR|Avg: €7,295 EUR
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8€2,678 EUR
Retailer 9€3,923 EUR
Retailer 11€6,940 EUR
Retailer 7€6,991 EUR
Retailer 3€7,171 EUR
Retailer 10€7,618 EUR
Retailer 13€7,647 EUR
Retailer 2€8,151 EUR
Retailer 4€9,315 EUR
Retailer 5€9,315 EUR
Retailer 12€9,406 EUR
Retailer 6€9,413 EUR
Jared€9,628 EUR

33 data points across 13 retailers

14 retailers€2,678 EUR to €9,628 EUR

A
Cheapest Retailer
-
€2,678 EUR
B+
Retailer 2
-
€3,923 EUR
View
B
Retailer 3
-
€6,940 EUR
View
B
Retailer 4
-
€6,991 EUR
View
B
Retailer 5
-
€7,171 EUR
View
B
Retailer 6
-
€7,618 EUR
View
B
Retailer 7
-
€7,647 EUR
View
Retailer 8
-
€8,151 EUR
View
B
Retailer 9
-
€9,315 EUR
View
B
Retailer 10
-
€9,315 EUR
View
B
Retailer 11
-
€9,406 EUR
View
B
Retailer 12
-
€9,413 EUR
View
Most Expensive
B
Jared
128855742 · Nov 6
€9,628 EUR
$10,750 USD
View
12 more retailers have this diamond
Prices start from €2,678 EURSave up to €6,950 EUR

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
€2,678 EUR