Diamond Guitars is an American guitar manufacturer owned and operated by Mountain High Holdings LLC, Jason Struble, the president and CEO, along with Jeff Diamant of Diamond Amplification.

He left the company to form his current brand, Dean Zelinsky Private Label.

His company is specialized in worldwide selling and trading of high-end acoustic guitars and is an official dealer for C.F.

[citation needed] The company has a full line of electric guitars, both import and US-made.

[citation needed] Diamond Guitars in the Netherlands is an official dealer for C.F.