Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2554019948

Certificate GIA 2554019948

Diamond specifications and retailer prices

From €2,041 EUR
As of November 6, 2026
Save €2,827 EUR (58%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: €4,868 EUR at NZ Jewellers · As of October 20, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554019948. Listed at 31 retailers as of November 6, 2026, with a 138% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554019948
Dimensions6.75 × 6.79 × 4.23 mm
L/W Ratio1.01
Star length50%
Top View
6.75 mm6.79 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554019948
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

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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 6
Current: €2,624 EUR|Low: €2,041 EUR|High: €4,728 EUR|Avg: €2,960 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 9€2,041 EUR
Retailer 2€2,336 EUR
Retailer 11€2,531 EUR
Retailer 1€2,624 EUR
Retailer 6€2,654 EUR
Retailer 4€2,777 EUR
Retailer 12€2,777 EUR
Retailer 3€2,866 EUR
Retailer 8€2,873 EUR
Retailer 10€3,224 EUR
Retailer 5€3,249 EUR
Retailer 7€4,648 EUR

34 data points across 12 retailers

31 retailers€2,041 EUR to €4,868 EUR

A
Cheapest Retailer
-
€2,041 EUR
A
Retailer 2
-
€2,267 EUR
View
A
Retailer 3
-
€2,336 EUR
View
Final sale: no returns
B+
Retailer 4
-
€2,531 EUR
View
Retailer 5
-
€2,531 EUR
View
Price last confirmed 54 days ago
Retailer 6
-
€2,531 EUR
View
Price last confirmed 51 days ago
Retailer 7
-
€2,531 EUR
View
Price last confirmed 22 days ago
Retailer 8
-
€2,531 EUR
View
Price last confirmed 30 days ago
Retailer 9
-
€2,531 EUR
View
Price last confirmed 16 days ago
B+
Retailer 10
-
€2,559 EUR
View
B+
Retailer 11
-
€2,624 EUR
View
Retailer 12
-
€2,629 EUR
View
Price last confirmed 39 days ago
B+
Retailer 13
-
€2,654 EUR
View
B+
Retailer 14
-
€2,777 EUR
View
B+
Retailer 15
-
€2,777 EUR
View
B+
Retailer 16
-
€2,866 EUR
View
B+
Retailer 17
-
€2,873 EUR
View
Retailer 18
-
€2,921 EUR
View
Price last confirmed 29 days ago
Retailer 19
-
€2,921 EUR
View
Price last confirmed 54 days ago
Retailer 20
-
€2,921 EUR
View
Price last confirmed 47 days ago
Retailer 21
-
€2,921 EUR
View
Price last confirmed 17 days ago
B+
Retailer 22
-
€2,921 EUR
View
B+
Retailer 23
-
€3,224 EUR
View
Retailer 24
-
€3,243 EUR
View
Price last confirmed 23 days ago
B+
Retailer 25
-
€3,249 EUR
View
B
Retailer 26
-
€4,648 EUR
View
Retailer 27
-
€4,868 EUR
View
Price last confirmed 29 days ago
B
Retailer 28
-
€4,868 EUR
View
Retailer 29
-
€4,868 EUR
View
Price last confirmed 48 days ago
Retailer 30
-
€4,868 EUR
View
Price last confirmed 55 days ago
Most Expensive
NZ Jewellers
24d6ce57-5de8-432d-9b87-8fbf5ceb647d · Oct 20
€4,868 EUR
$5,435 USD
View
Price last confirmed 18 days ago
30 more retailers have this diamond
Prices start from €2,041 EURSave up to €2,827 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
€2,041 EUR