Ring-making methods can be broadly divided into two categories: "forging" and "casting." Since these methods affect the final strength and design flexibility, understanding them can make choosing a ring much easier. Here we introduce the characteristics of each in an easy-to-understand way.
Forging (Tanzo)
This is a traditional method in which metal is hammered and shaped under pressure while being compressed. Its biggest feature is that the metal density is high, making it durable and resistant to deformation. It suits simple designs and wedding rings meant to be worn every day for years to come. The result is a hard, resilient finish.
Casting (Chuzo)
This is a method in which molten metal is poured into a mold to create the shape. Its strength lies in making it easier to express complex designs and delicate decorations, and it is widely adopted by many brands. It offers high design flexibility, making it suitable for those seeking a one-of-a-kind ring with personality.
Strength or Design: Which Matters More?
The basic idea is: choose forging if durability and resistance to deformation are your top priority, and choose casting if you want design flexibility and rich decoration. That said, many cast rings have sufficient strength as well, so you may not notice a major difference in everyday use.
Which Should You Choose?
Choose based on how you use your hands daily and the design direction you prefer. For more on the differences in the materials themselves, refer to our Metal Guide as well, so you can choose with greater confidence.
How to Check the Manufacturing Method
It's difficult to tell whether a ring is forged or cast just by looking at it. If you're concerned about strength or construction, ask about the manufacturing method in store. Many brands will explain which method they use. If you let them know how you use your hands daily (whether you use them a lot, or whether decoration is a priority for you), they can suggest a ring that suits you well.