Monnickendam, a British diamond cutter founded in 1890, has an expanded corner opening in the jewelry section of Isetan Shinjuku's main building on September 2, 2026, where the brand already maintains a permanent store.
A Storied British Diamond Cutter
Monnickendam traces its roots to founder Louis Monnickendam, whose exceptional skill earned him recognition as a master cutter. The brand has carried on his precise techniques without interruption for more than 130 years, making it the world's oldest British diamond-cutting house.
In 1948, the Tanzanian government presented a rough diamond to mark Queen Elizabeth's wedding, and Monnickendam was entrusted with cutting the stone — a testament to the trust the British royal family has placed in the brand over the years. Monnickendam's brilliantly cut diamonds have earned wide acclaim, and the house is also described as one of the world's three great diamond-cutting brands.
Expanded Space at Isetan Shinjuku
With the September 2 refresh, the display space at Isetan Shinjuku's main building 1F jewelry corner will grow larger, giving shoppers more room to browse Monnickendam's full range. The lineup will include the brand's iconic Tudor Rose series, limited-edition jewelry that comes with a teddy bear from British brand Merrythought as part of a special collaboration, and bridal jewelry known for its rich, dewy white brilliance.
Refresh Opening Gift
To mark the occasion, customers who purchase Monnickendam jewelry during the campaign period will receive a commemorative gift.
Customers who complete a purchase of Monnickendam jewelry (two matching rings in the case of marriage rings) during the promotional period will receive an original Monnickendam thermos bottle pair set.
Monnickendam Refresh Opening Gift
- Eligible store: Isetan Shinjuku main building, 1F jewelry
- Gift period: September 2 (Wed) to September 30 (Wed), 2026
- Gift: Thermos bottle pair set
The gift will be available while supplies last, and the promotion may end early once the sets are gone.
Monnickendam's jewelry is known for its exceptional brilliance, making this a good opportunity to see the collection in person. Visitors are welcome to stop by the newly refreshed Monnickendam corner on the 1F jewelry floor of Isetan Shinjuku's main building.
Website: https://www.monnickendam-dia.com/
Instagram: https://www.instagram.com/monnickendam_dia/
Photos are for illustrative purposes only. Products shown may not be in stock.
