At Diamond Investigations, we understand how painful and uncertain it can be to suspect infidelity. Our team of licensed Boston private investigators conducts discreet and comprehensive domestic and infidelity investigations across Massachusetts, helping you uncover the truth with professionalism and respect.

Whether you suspect a cheating spouse, boyfriend, girlfriend, or partner, we use state-of-the-art surveillance technology and investigative methods to obtain clear, reliable evidence. Each case is handled with absolute confidentiality, and findings are delivered with documented proof—so you can make informed decisions with confidence and peace of mind.

Our investigators also specialize in child custody, alimony reduction, and background checks, ensuring you have the facts needed for personal clarity or legal proceedings. With over three decades of experience, Diamond Investigations is trusted for accuracy, discretion, and results. Don’t rely on assumptions—get the facts you deserve. Contact Diamond Investigations for a confidential consultation today.