Description The Diamine 1864 Anniversary Collection features triangular-shaped 40ml bottles, and when these are all placed together, they form a round display. Diamine Blue Velvet is a vibrant, bright blue.Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side.We offer Free Shipping on all orders over $50 for US customers, and for orders over $250 for our Canadian customers.