14 October 2026International edition
Vol. I · No.
14 October 2026
AI in Fashion
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Streetwear and youth culture

Diamond Supply Co.

United States

Diamond Supply Co. is an American skateboard and streetwear label founded in 1998 by Nick Diamond in Los Angeles. It began with skateboard parts and grew into apparel and accessories.

Facts
Founded1998
FounderNick Diamond (Nicholas Tershay)
CityLos Angeles, California
OriginSkateboard hardware
Websitediamondsupplyco.com
Segment
Mid-market
Categories
MenswearAccessoriesFootwear
Sales channels
WholesaleE-commerce

What is Diamond Supply Co.?

Diamond Supply Co. is an American streetwear and skateboard label based in Los Angeles. It was founded in 1998 by Nicholas Tershay, better known as Nick Diamond.

History

The brand started through a distribution company associated with Girl Skateboards, in which Mike Carroll and Rick Howard were prominent figures. It first concentrated on skateboard hardware.

Products and positioning

The range grew from hardware to clothing and accessories.

  • Skateboard parts such as bolts and bearings
  • T-shirts and fleece
  • Accessories
  • Footwear through Nike SB and Air Force 1 collaborations

Other collaborations include Ibn Jasper, PacSun and Jason Markk.

The label sits within skate and streetwear culture, and its collaborations link it to both skate shops and mainstream retail.

Why it matters

Diamond Supply Co. is a typical example of a skate-hardware company that became a streetwear label, using collaborations with larger sportswear and retail names to reach a wider audience.

Frequently asked questions

Who founded Diamond Supply Co.?

Diamond Supply Co. was founded in 1998 by Nick Diamond, whose legal name is Nicholas Tershay.

What does Diamond Supply Co. sell?

It sells skateboard parts, T-shirts, fleece and accessories, and has released footwear through collaborations such as Nike SB.

All brands