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Round|Natural|GIA

1.21ct I IF Round Natural Diamond

EX • I/IF • GIA 2506840307

Certificate GIA 2506840307

Diamond specifications and retailer prices

From €4,375 EUR
$4,888 USD
As of October 30, 2026
Save €3,606 EUR (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €7,982 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2506840307. Listed at 6 retailers as of October 30, 2026, with prices from €4,375 to €7,982, a €3,606 spread on the same certified stone. NZ Jewellers lists it at €7,982. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2506840307
Dimensions6.75 × 6.80 × 4.31 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.75 mm6.80 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506840307
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.7%

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: Oct 30
Current: €7,982 EUR|Low: €3,489 EUR|High: €7,982 EUR|Avg: €5,700 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6€4,375 EUR
Retailer 5€4,405 EUR
Retailer 3€5,150 EUR
Retailer 4€5,246 EUR
Retailer 2€7,600 EUR
NZ Jewellers€7,982 EUR

24 data points across 6 retailers

6 retailers€4,375 EUR to €7,982 EUR

A
Cheapest Retailer
-
€4,375 EUR
$4,888 USD
B+
Retailer 2
-
€4,405 EUR
$4,921 USD
View
Final sale: no returns
B+
Retailer 3
-
€5,150 EUR
View
B+
Retailer 4
-
€5,246 EUR
£4,615 GBP
View
B
Retailer 5
-
€7,600 EUR
£6,686 GBP
View
Most Expensive
B
NZ Jewellers
4def09ca-a340-4163-8287-51aadf3ed1ad · Oct 30
€7,982 EUR
$8,917 USD
View
5 more retailers have this diamond
Prices start from €4,375 EURSave up to €3,606 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
€4,375 EUR