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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6452098443

Certificate GIA 6452098443

Diamond specifications and retailer prices

From €4,116 EUR
As of November 4, 2026
Save €3,785 EUR (48%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €9,018 EUR at NZ Jewellers · As of November 7, 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 6452098443. Listed at 20 retailers as of November 4, 2026, with a 92% 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 6452098443
Dimensions6.81 × 6.76 × 4.26 mm
L/W Ratio1.01
Top View
6.81 mm6.76 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452098443
Side View
Table 57.0%Crown 35.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €4,722 EUR|Low: €3,757 EUR|High: €8,039 EUR|Avg: €5,347 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8€4,116 EUR
Retailer 9€4,509 EUR
Retailer 11€4,580 EUR
Retailer 1€4,722 EUR
Retailer 10€4,884 EUR
Retailer 5€5,172 EUR
Retailer 2€5,326 EUR
Retailer 6€5,326 EUR
Retailer 3€5,635 EUR
Retailer 7€5,725 EUR
Retailer 4€7,901 EUR

43 data points across 11 retailers

20 retailers€4,116 EUR to €7,901 EUR

B
Cheapest Retailer
-
€4,116 EUR
B
Retailer 2
-
€4,141 EUR
View
B
Retailer 3
-
€4,260 EUR
View
B
Retailer 4
-
€4,509 EUR
View
Final sale: no returns
B
Retailer 5
-
€4,580 EUR
View
B
Retailer 6
-
€4,722 EUR
View
B
Retailer 7
-
€4,884 EUR
View
B
Retailer 8
-
€4,884 EUR
View
B
Retailer 9
-
€4,884 EUR
View
B
Retailer 10
-
€5,172 EUR
View
B
Retailer 11
-
€5,326 EUR
View
B
Retailer 12
-
€5,326 EUR
View
B
Retailer 13
-
€5,455 EUR
View
B
Retailer 14
-
€5,455 EUR
View
B
Retailer 15
-
€5,635 EUR
View
B
Retailer 16
-
€5,643 EUR
View
B
Retailer 17
-
€5,725 EUR
View
Retailer 18
-
€5,945 EUR
View
Price last confirmed 15 days ago
B
Retailer 19
-
€7,901 EUR
View
Most Expensive
NZ Jewellers
2dbbae6e-fc61-4a8c-82e7-79b5176a6a54 · Nov 7
€9,018 EUR
$10,068 USD
View
Price under review
19 more retailers have this diamond
Prices start from €4,116 EURSave up to €3,785 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 Round
€4,116 EUR