Beveled edge design ensures smooth inlay and ring making
Multiple groove widths (2 mm, 3 mm, 4 mm) accommodate various project needs
Comfort fit interior profile provides a secure fit for wider ring options
Solid black ceramic material offers durability and a sleek appearance
Summarized by Shop
Black ceramic ring cores for inlaying and ring making
Available in 4 mm, 6 mm, 8 mm, total width,
Beveled edge black ceramic ring blank with 2 mm groove width, total ring width of 4 mm
Beveled edge black ceramic ring blank with 3 mm groove width, total ring width of 6 mm
Beveled edge black ceramic ring blank with 4 mm groove width, tota
Material
Black ceramic
Groove Widths
2 mm, 3 mm, 4 mm
Total Ring Widths
4 mm, 6 mm, 8 mm
Edge
Beveled
Interior Profile
Comfort fit (wider options available)
Summarized by Shop
4.9
26 ratings
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4
3
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1
The quality is very good as always. Very easy to work with and comfortable to wear. Delivery time is superb bearing in mind my order is travelling to Scotland 🏴 thank you so much to everyone. You help keep us small businesses going 👍🏻
H
Helen · July 5, 2026
These ceramic comfort cores are consistently sized, cleanly finished, and make a great foundation for inlays. I’ll definitely keep using these for custom ring builds.
N
Nick · June 9, 2026
These ceramic comfort cores are consistently sized, cleanly finished, and make a great foundation for inlays. I’ll definitely keep using these for custom ring builds.