Main Photo Credit: https://www.pinterest.com/pin/515873332301443944/
A mutation that is catching every one's interest is the Blue Diamond. This is thought to be a combination of two recessive mutations, sapphire and violet. This is doubly difficult to breed due to the fact that carriers will have to carry both recessive mutations. As yet there is only one breeder in the UK producing this mutation. There are also thoughts that the beige gene is some how mixed up in it all.