Pizza Week 2026 Participant

Greenpoint · Brooklyn

Diamond
Slice

Est. 2023
70 Diamond St, Brooklyn, NY 11222
Family-owned

The Story

A Greenpoint slice shop rooted in the neighborhood.

Pizza has been part of Peter's life since childhood. Growing up in an immigrant household in New York City, eating out was rare, but a neighborhood slice shop became a favorite treat and planted a love for pizza that never faded. That passion eventually led him into the restaurant business — though not right away. He and his wife, Marta, first opened Calyer Cafe together, which gave him his first real experience running a kitchen. Pizza stayed on his mind throughout, and in 2023 the two began using Calyer's space after hours on Friday nights for a pop-up called After Hours Pizza, testing pies on whoever wandered in. That casual experiment became the seed of Diamond Slice, which opened for good in February 2025.

The location carries deep personal meaning. Peter grew up in this very neighborhood — his elementary school, his church, the park he played in as a kid, and his grandmother's house all sit within a block of the shop. The space itself has history too: before becoming Diamond Slice, it was a deli the family used to order catering from, and before that, a bar called Gloria's where his parents once met up with friends. Opening a pizza shop here felt like coming full circle, rooting his own story in the same few blocks where it began.

Diamond Slice has grown into a true neighborhood gathering spot. Families stop in for dinner, kids swing by after school, and friends meet up there before heading out for a night on the avenue. It's become woven into the everyday rhythm of the community.

That sense of community extends beyond the counter. The shop recently contributed to an initiative bringing proper pizza box recycling bins to nearby McGolrick Park, and Peter and Marta make it a point to support other local businesses whenever they can. Above all, they take pride in creating a space that feels welcoming to everyone — a genuine neighborhood slice shop in every sense.

Owners

Peter & Marta Chrostowski

"Opening a pizza shop here felt like coming full circle — rooting my own story in the same few blocks where it began."

Pizza Week Special Slice

Coming
Soon

Diamond Slice's Pizza Week Signature Slice is still being finalized — check back soon for the full reveal.

Other Customer Favorites

The Story Behind the Menu

Peter's menu draws inspiration from the pizzerias he grew up going to. There's a common misconception that New York slice shops have always been strict purists, but that wasn't his experience at all — the shops he loved growing up offered fun, creative options like buffalo chicken, supreme slices, and all kinds of inventive combinations. As his interest in pizza deepened, he started traveling around the city to places that put more care into the core product. Di Fara was a huge inspiration for him; watching his pie get finished with freshly cut basil, Parmigiano, and generous glugs of bright olive oil changed the way he looked at pizza. From that point on, he knew he wanted to bring those two ideas together on Diamond Slice's menu: the fun and creativity of the slice shops he grew up with, and the craftsmanship of places like Di Fara.

Diamond Slice cheese slice

Cheese

Crushed California tomatoes, pecorino, whole-milk mozzarella, finished with fresh basil and parmigiano.

Diamond Slice buffalo chicken slice

Buffalo Chicken

Cream Sauce, whole-milk mozzarella, house buffalo sauce, fried chicken cutlets, house ranch, scallions, and celery.

Diamond Slice pepperoni slice

Pepperoni

Crushed California tomatoes, pecorino, whole-milk mozzarella, Ezzo pepperoni, fresh basil, and parmigiano.

Diamond Slice Caesar slice

Caesar

Extra virgin olive oil, whole-milk mozzarella, romaine lettuce, anchovy Caesar, toasted breadcrumbs, red onion, and parmigiano.

Diamond Slice spicy vodka slice

Spicy Vodka

Calabrian chili vodka sauce, fresh mozzarella, pecorino romano, fresh basil and parmigiano.