A young Thai jewelry designer has crafted a tiara worth $4.2 million for his pet dog, using precious stones given to him by his mother.

Riwin Jirapolsek, who showcased the tiara at a dog show in Bangkok recently, said he wanted to make something special for Kanune, his 15-year-old male Maltese.

He took almost two months to finish the piece, which is made from titanium encrusted with 250-carats of emeralds and diamonds.

On March 23rd, online jewelry retailer Bidz.com will auction off a gold and diamond tiara designed by the late Gianni Versace to benefit the Aid for AIDS charity, with an opening bid of $699,000 US Dollars.

The one-of-a-kind tiara, which contains over 1,200 diamonds and is worth an estimated $3 million, has been worn by celebrities including Madonna, Amber Valletta and Donatella Versace.

The Versace Tiara, also known as the Tiara, won the prestigious De Beers Diamonds International Award in 1995.