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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5546359913

Certificate GIA 5546359913

Diamond specifications and retailer prices

From €1,877 EUR
As of November 6, 2026
Save €3,026 EUR (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,904 EUR at NZ Jewellers · As of September 21, 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 5546359913. Listed at 17 retailers as of November 6, 2026, with a 161% 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5546359913
Dimensions6.78 × 6.81 × 4.21 mm
L/W Ratio1.00
Top View
6.78 mm6.81 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546359913
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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 6
Current: €4,904 EUR|Low: €1,706 EUR|High: €4,904 EUR|Avg: €2,941 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7€1,877 EUR
Retailer 8€2,125 EUR
Retailer 2€2,225 EUR
Retailer 3€2,228 EUR
Retailer 5€2,491 EUR
Retailer 6€2,757 EUR
Retailer 4€4,087 EUR
NZ Jewellers€4,904 EUR

38 data points across 8 retailers

17 retailers€1,877 EUR to €4,904 EUR

A
Cheapest Retailer
-
€1,877 EUR
Final sale: no returns
A
Retailer 2
-
€1,882 EUR
View
A
Retailer 3
-
€1,937 EUR
View
Retailer 4
-
€2,125 EUR
View
Price last confirmed 45 days ago
A
Retailer 5
-
€2,125 EUR
View
A
Retailer 6
-
€2,225 EUR
View
A
Retailer 7
-
€2,228 EUR
View
Retailer 8
-
€2,248 EUR
View
Price last confirmed 31 days ago
Retailer 9
-
€2,451 EUR
View
Price last confirmed 46 days ago
B+
Retailer 10
-
€2,463 EUR
View
B+
Retailer 11
-
€2,463 EUR
View
A
Retailer 12
-
€2,491 EUR
View
B+
Retailer 13
-
€2,553 EUR
View
B+
Retailer 14
-
€2,757 EUR
View
B
Retailer 15
-
€4,087 EUR
View
B
Retailer 16
-
€4,904 EUR
View
Most Expensive
NZ Jewellers
6429a346-531a-4350-8fc7-527f5db21abd · Sep 21
€4,904 EUR
$5,475 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from €1,877 EURSave up to €3,026 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
€1,877 EUR