4.00 CT Madeira Citrine Solitaire with .16 Carats Round Champagne Diamonds ladies Ring. NWOT. Never worn, new condition Size 7. There is Citrine and then there is Madeira Citrine. This is the deep orange Citrine unlike the pale yellow to gold colored. Madeira Citrine is the most desired and expensive of the enhanced and treated Quartz gemstone CITRINE.