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Round|Natural|GIA

1.21ct F I1 Round Natural Diamond

EX • F/I1 • GIA 5423904145

Certificate GIA 5423904145

Diamond specifications and retailer prices

From €2,090 EUR
₹223,303 INR
As of October 31, 2026
Save €2,900 EUR (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €4,990 EUR at NZ Jewellers · As of October 30, 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 5423904145. Listed at 9 retailers as of October 30, 2026, with prices from €2,090 to €4,990, a €2,900 spread on the same certified stone. NZ Jewellers lists it at €4,990. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5423904145
Dimensions6.82 × 6.79 × 4.22 mm
L/W Ratio1.00
Top View
6.82 mm6.79 mm1.21 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5423904145
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.0%

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: Oct 31
Current: €4,990 EUR|Low: €2,085 EUR|High: €4,990 EUR|Avg: €3,030 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4€2,090 EUR
Retailer 5€2,100 EUR
Retailer 3€2,522 EUR
Retailer 7€2,865 EUR
Retailer 9€2,865 EUR
Retailer 6€2,974 EUR
Retailer 8€3,305 EUR
Retailer 2€3,338 EUR
NZ Jewellers€4,990 EUR

43 data points across 9 retailers

9 retailers€2,090 EUR to €4,990 EUR

A
Cheapest Retailer
-
€2,090 EUR
₹223,303 INR
B+
Retailer 2
-
€2,100 EUR
HK$18,400 HKD
View
B+
Retailer 3
-
€2,522 EUR
$2,829 USD
View
B+
Retailer 4
-
€2,865 EUR
$3,213 USD
View
B+
Retailer 5
-
€2,865 EUR
$3,213 USD
View
B
Retailer 6
-
€2,974 EUR
$3,336 USD
View
B
Retailer 7
-
€3,305 EUR
$3,707 USD
View
B
Retailer 8
-
€3,338 EUR
View
Most Expensive
B
NZ Jewellers
6487ac5a-7cda-4580-9166-e1e3f40ec77d · Oct 30
€4,990 EUR
$5,597 USD
View
8 more retailers have this diamond
Prices start from €2,090 EURSave up to €2,900 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
€2,090 EUR