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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 7552179432

Certificate GIA 7552179432

Diamond specifications and retailer prices

From €3,198 EUR
As of November 7, 2026
Save €2,577 EUR (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €5,775 EUR at MOH London · As of November 7, 2026
View at MOH London

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7552179432. Listed at 4 retailers as of November 7, 2026, with prices from €3,198 to €5,775, a €2,577 spread on the same certified stone. MOH London lists it at €5,775. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle49.35°
Pavilion angle35.73°
OriginNatural
Grading LabGIA
CertificateGIA 7552179432
Dimensions6.98 × 5.38 × 3.64 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Cloud, Needle
Top View
6.98 mm5.38 mm1.21 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7552179432
Side View
Table 70.0%Crown 49.35°Girdle: Slightly ThickPavilion 35.73°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: €5,775 EUR|Low: €3,147 EUR|High: €5,906 EUR|Avg: €3,900 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5€3,178 EUR
Retailer 2€3,198 EUR
Retailer 4€3,529 EUR
Retailer 3€3,738 EUR
MOH London€5,775 EUR

45 data points across 5 retailers

4 retailers€3,198 EUR to €5,775 EUR

B+
Cheapest Retailer
-
€3,198 EUR
Retailer 2
-
€3,529 EUR
View
Price last confirmed 34 days ago
Retailer 3
-
€3,738 EUR
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
90A26EE00 · Nov 7
€5,775 EUR
£5,077 GBP
View
3 more retailers have this diamond
Prices start from €3,198 EURSave up to €2,577 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.

B+
1.21ct Radiant
€3,198 EUR