Nick Diamond Net Worth, Relationships, Age/Birthdate & Birthday Facts

Nick Diamond Net Worth, Relationships, Age/Birthdate & Birthday

Nicholas “Tershay” Diamond is a skateboarder-turned-streetwear innovator best known as the founder of Diamond Supply Co

Introduction

Nicholas “Nick” Tershay, widely known as Nick Diamond, is an American skateboarding pioneer and entrepreneur whose visionary brand, Diamond Supply Co., bridged the worlds of skate hardware, streetwear and sneaker culture. Born January 24, 1984, he has built a dynamic career that culminated in an estimated net worth of approximately $10 million.  While details about his personal life remain relatively private, public records suggest he has been in a long-term relationship with actress Brittany Underwood. 

Quick Facts

Forging a Vision: From Skatepark to Streetwear Legacy

Growing up in San Francisco, Nick Diamond’s early influences were rooted in skateboarding and the DIY ethos of the Bay Area scene. According to interviews, his mother surfed and his uncle skated—an upbringing that primed him for a life on a board. 
In 1998, from his one-bedroom apartment, he launched what would become Diamond Supply Co., initially selling skateboard hardware before pivoting to apparel and accessories. 
By 2005, his breakthrough collaboration with Nike SB (the Tiffany-blue “Diamond Nike SB Dunk”) catapulted the brand into the sneakerhead and streetwear stratosphere. 
Defining moments in Nick Diamond’s journey include:

• Launching Diamond Supply Co. in San Francisco in 1998.

• Relocating to Los Angeles and tying distribution with Girl Skateboards in the early 2000s. 

• Dropping the iconic Nike SB Dunk collab in 2005 and opening the flagship Fairfax store in 2006. 

• Expanding the brand into streetwear and music culture circles, beyond skate alone. 

The Core Pillars of Wealth

The core pillars of Nick Diamond’s wealth include:

• Brand Creation & Retail: Founder and majority holder (until recent transactions) of Diamond Supply Co., which grew from hardware into apparel, footwear and lifestyle goods.

• Collaborations & Sneaker Releases: Profit from high-profile collaborations like the Nike SB Dunk, and limited drops that fuel resale value and brand prestige. 

• Licensing & Distribution Deals: Strategic distribution partnerships and licensing in global markets, particularly Europe and Asia. 

Note: Public estimates focus on $10 million figure; detailed breakdowns of assets and investments are not widely available.

Relationships & Private Life

While Nick Diamond keeps much of his private life off-camera, the following is publicly documented:
He is reportedly dating actress Brittany Underwood, with the relationship dating back to May 2014 according to profile listings. 
Key insights into Nick Diamond’s relationships and personal life:

• Long-term relationship with Brittany Underwood, noted on public dating history sites.

• No widely confirmed public record of marriage or children in primary reputable press sources.

• Prefers to maintain relative privacy outside his professional spotlight.

Lifestyle, Assets & Interests

Beyond his brand success, Nick Diamond’s lifestyle reflects his roots in skate culture and his interest in global streetwear and travel.
Beyond career success, Nick Diamond leads a lifestyle that reflects both passion and purpose, including:

• A former Los Angeles hillside residence listed for sale, illustrating financial mobility. 

• Active skateboarding participation and streetwear community engagement.

• Collectible sneaker culture involvement: The Nike SB collab remains a collector’s gem.

• Philanthropic interest modestly documented but follows the skate-community tradition of mentoring younger skaters.

Net Worth Breakdown & Analysis

The headline number — Nick Diamond’s estimated net worth of ~$10 million — comes from public sources such as CelebrityNetWorth. 
While not all asset details are publicly disclosed, key drivers of his financial profile include the founding of Diamond Supply Co., high-value collaborations, and brand licensing. The rapid growth of sneaker/special-drop culture around the mid-2000s amplified his wealth trajectory. 
His net worth appears stable rather than hyper-exponential, reflecting sustainable growth rather than rapid venture-capital style scale.

Public Image, Legacy & Influence

Nick Diamond’s public image is that of a genuine skater who built a brand from the ground up and stayed true to skate culture even as he entered the mainstream. Publications such as Dazed and Complex chronicle his rise from hardware innovator to streetwear icon. 
He is regarded as a pioneer for merging skateboarding aesthetics with streetwear and hip hop collaborator culture. His flagship Fairfax store became a cultural hub, and his community-first attitude resonated across generations of skaters and sneakerheads.
His legacy includes inspiring younger skate brands to collaborate across fashion and music, and validating skate-shop roots as a launchpad for broader fashion success. In the world of celebrity sneakers and streetwear, his name stands as a credible example of authenticity.

Conclusion

Nick Diamond’s journey from a San Francisco skate-enthusiast to founder of a global brand is a story of passion, authenticity and strategic culture-crossing. Born January 24, 1984, his mission transcended hardware and evolved into a lifestyle brand that speaks to both skateboarding and streetwear. With an estimated net worth of ~$10 million, his success is rooted in tangible brand equity and community connection rather than lobby-room boardroom fame. His reported relationship with Brittany Underwood rounds out a picture of a creator who, when not designing the next drop, is connected to his roots and loyal to his culture. For anyone interested in how skate culture morphed into premium streetwear, Nick Diamond’s personal story is a blueprint for staying real while scaling up.