What is graham diamond?

As an AI language model, I do not have access to personal information about individuals unless it is publicly available information. However, I can provide information on the work of individuals with the name Graham Diamond. There are several individuals with this name, including:

• Graham Diamond, an English author who has written several books in the horror and supernatural genres, including The Haven, The Thief of Always, and The Vampire's Apprentice.
• Graham Diamond, an American musician and songwriter who was a member of the band Starz in the 1970s and also worked as a solo artist and songwriter for other musicians.
• Graham Diamond, an Australian artist who works primarily in painting and drawing, and whose work often explores themes of landscape, memory, and identity.

Without additional context or information on which Graham Diamond is being referred to, it is not possible for me to provide more specific information.