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Round|Natural|IGI

1.21ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 642405173

Shape and cutting style on the report: Round brilliant

Certificate IGI 642405173

Diamond specifications and retailer prices

From €1,881 EUR
As of November 4, 2026
Save €2,473 EUR (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,407 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 642405173. Listed at 18 retailers as of November 4, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 642405173
Dimensions6.80 × 6.86 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.80 mm6.86 mm1.21 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642405173
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41°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 4
Current: €4,354 EUR|Low: €1,881 EUR|High: €4,512 EUR|Avg: €2,491 EUR|-3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 12€1,881 EUR
Retailer 2€1,937 EUR
Retailer 6€1,945 EUR
Retailer 5€1,953 EUR
Retailer 3€2,082 EUR
Retailer 4€2,082 EUR
Retailer 7€2,159 EUR
Retailer 14€2,178 EUR
Retailer 11€2,288 EUR
Retailer 8€2,389 EUR
Retailer 15€2,403 EUR
Retailer 9€2,541 EUR
Retailer 10€2,583 EUR
Retailer 13€3,638 EUR
NZ Jewellers€4,354 EUR

24 data points across 15 retailers

18 retailers€1,881 EUR to €4,354 EUR

A
Cheapest Retailer
-
€1,881 EUR
A
Retailer 2
-
€1,937 EUR
View
A
Retailer 3
-
€1,953 EUR
View
Retailer 4
-
€2,053 EUR
View
Price last confirmed 103 days ago
A
Retailer 5
-
€2,082 EUR
View
A
Retailer 6
-
€2,082 EUR
View
Retailer 7
-
€2,107 EUR
View
Price last confirmed 16 days ago
Retailer 8
-
€2,159 EUR
View
Price last confirmed 22 days ago
A
Retailer 9
-
€2,178 EUR
View
A
Retailer 10
-
€2,288 EUR
View
B+
Retailer 11
-
€2,389 EUR
View
B+
Retailer 12
-
€2,403 EUR
View
Retailer 13
-
€2,491 EUR
View
Price last confirmed 17 days ago
B+
Retailer 14
-
€2,541 EUR
View
B+
Retailer 15
-
€2,583 EUR
View
B
Retailer 16
-
€3,638 EUR
View
B
Retailer 17
-
€4,354 EUR
View
Most Expensive
NZ Jewellers
d7fcadd0-0be9-40fd-a6c5-aa36aa4a8791 · Sep 21
€4,407 EUR
$4,920 USD
View
Price last confirmed 46 days ago
17 more retailers have this diamond
Prices start from €1,881 EURSave up to €2,473 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
€1,881 EUR