Walnut Creek’s New Jewelry Store Wants to Put Diamonds on Your Teeth

WALNUT CREEK, CALIFORNIA – Hayward-based Highline Custom Jewelry has expanded east, quietly opening a new storefront at 1613 N. Main Street in downtown Walnut Creek. Storefront photographs posted by the company in late May show the boutique fully stocked and “open for business.”

From Southland Mall to the Shadelands corridor
Founded in 2000 at Hayward’s Southland Mall, Highline is known for custom diamond pieces—everything from engagement rings to iced-out “grills”; the kind for your teeth, not your backyard.

A Walnut Creek Chamber of Commerce listing confirms the new shop’s address and contact information, noting owner Abdul Chashmawala as company president.
What shoppers will find
An Instagram reel announcing the Walnut Creek location highlights:
- Bespoke diamond jewelry and watches
- Custom grill work (“diamond fangs only,” the post jokes)
- On-site consultations for one-of-a-kind pieces
The company’s website positions the boutique as its flagship, emphasizing Bay Area–made pieces and “worldwide shipping.”
Hours and contact
Yelp and the Chamber list hours as 11 a.m.–7 p.m. Monday–Saturday (check for updates) and provide the main line, (510) 786-4505, for appointments or walk-in questions.
Why Walnut Creek
Highline joins a cluster of jewelry and luxury-watch retailers along North Main, broadening the city’s options for shoppers in the market for custom sparkle—whether that’s an engagement ring or a diamond-dusted pendant.
Or, a diamond grill.