COLOUR Diamonds range from colourless - the rarest and most valuable - to yellowish, with a spectrum of shadings in between. Colour can only be seen with proper lighting against a white background. back<< >>next Home   What are the characteristics of a quality diamond? What is the "ideal cut"? Why should you choose an ideal cut Lumina Diamond Why are Lumina Diamonds your best value?   Why should you choose Lumina?   Lifetime upgrade, 5-year service plan