Four Diamonds opened in Pioneer Square in March 2025, serving Vietnamese comfort food alongside a rotating lineup of coffee and boba drinks made in house. The Special Pho Bowl draws praise for its broth and generous portions, while salt and pepper chicken wings, house wings, and truffle fries round out the food side of the menu.
Drinks get real attention here — the coffee oreo blend and other boba options are built with the same care as the food, not treated as an afterthought. The space also handles private parties and catering in addition to regular sit-down service.
The restaurant has developed a hidden-gem reputation in the neighborhood, with regulars citing consistent execution across both the Vietnamese dishes and the drink menu.
Drinks get real attention here — the coffee oreo blend and other boba options are built with the same care as the food, not treated as an afterthought. The space also handles private parties and catering in addition to regular sit-down service.
The restaurant has developed a hidden-gem reputation in the neighborhood, with regulars citing consistent execution across both the Vietnamese dishes and the drink menu.

