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Hario Glass – Glass Cello

The Hario Glass company of Japan makes glass tea and coffee pots. However, near the turn of the century, the company decided to make a violin and a cello. They began with the violin and called it the Hirom Glass violin.


This video shows how Hario artists created the violin. They employed similar techniques to make the cello.

Hario glass cello under construction. Hario Glass in Japan (2004)

Screenshot showing the stages of the cello’s construction. From the Hario website:

Step 1 of the Construction

For the first stage of construction, which involved putting melted glass into a cello-shaped mold, and blowing the glass to create the shape, they made 40 successful cello bodies. The glassblowers had to be highly skilled and use intuitive breath control to create a consistent thickness.

Step 2 of the Construction

Only ten cellos survived the second stage when the makers had to cut away the excess glass and create a hole (required for resonance) in the body.

Step 3 of the Construction

They only completed one cello from the original starting batch of 40. At this stage, they added the cello’s fittings and decorations.

Five Glass Instruments

Hario also made a glass Chinese harp, a bamboo flute, and a tsuzumi drum. Reuters reported that

It took 13 of the firm’s artisans over 19 months and ten million yen $109,000 (67,400 pounds) to create the five instruments. [violin, cello, Chinese harp, bamboo flute, and tsuzumi drum]

A Unique Instrument

Hario announced that their cello was the only cello made from glass in existence in 2004. Although there are other glass cellos now, the Hario cello is still the only blown glass cello of which we are aware.

Cellist Yoko Hasegawa performed on the cello in Tokyo on 14 December 2004.

Please contact us if you have more information about this cello. Thank you.

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Hario Co., Ltd.

The Japanese company Hario Co., Ltd., is known for its glass tea and coffee pots. However, near the turn of the 21st century, highly skilled Hario glass artists created five instruments, including one cello.

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