Authentic rare gold koban coin minted circa 1860-1867 set in 18K yellow and white gold with rose cut diamonds.

Handmade in Rome.

The Japanese koban coin, particularly the MAN-EN Koban, holds a rich historical significance dating back to the Edo period (17th to 19th centuries) in Japan. Koban coins were first introduced in 1601 during the reign of Tokugawa Ieyasu, the founder of the Tokugawa shogunate. These oval-shaped gold coins were minted to stabilise the country’s monetary system and facilitate trade. The MAN-EN Koban, specifically, was issued during the Man’en era (1860-1861) and featured unique artistic designs on its surface. They were widely used in commerce and symbolised the wealth and stability of Japan during this pivotal era of its history. Today, the MAN-EN Koban is not only a valuable numismatic artefact but also a cultural representation of Japan’s prosperous past.

  • Ancient gold coin
  • 18K Yellow Gold
  • Rose cut Diamonds
  • This piece is provided with a certificate of authenticity.
  • Coin Ø 35x20mm
  • Pendant: 30x45mm
  • Thickness: 2mm
  • Chain length: 55cm
  • Additional loop at 53cm

London zones 1-2 – same day courier delivery for orders placed by 3pm (GMT).

UK Mainland – next day delivery with DHL for orders placed by 3pm (GMT).

Europe and USA – 1 to 2 day delivery with Fedex for orders placed by 2pm (GMT).

Rest of the world – 2 to 3 day delivery with Fedex for orders placed by 3pm (GMT).

All orders placed after the cut-off time will be shipped the next working day.

You may return or exchange all mainline products ordered within 14 days of receipt of the goods.

Each ancient coin and artefact we place into jewellery has been restored and professionally stabilised to preserve it for lifetimes of enjoyment. Please don’t try to “improve” your ancient coin, it has already been perfected by numismatic specialists.

You may clean your coin bezel (the metal frame around your coin) only with a soft, non-abrasive polishing cloth.

Depicted on Coin

Edo Period. Man-En Koban (1860-1867)

Obverse: Floral motifs in Paulonia (Kiri) in the shape of a fan above scrolls with the value, name and signature; lines etched across the fields.

Reverse: Four official hallmarks.


Please note that we offer a bespoke service. Should you wish to customise your piece by selecting from our range of coins, gemstones, type of metal or engrave a message. Feel free to get in touch with our team at shop@dubini.co.uk