Shop RIVER RINGS18 carat white gold and diamond River Ring 18 carat white gold and diamond River Ring € 3800.00 18 carat white gold diamond solitaire 'River' Ring is also available in Platinum or 18 carat yellow gold. We also have this design available with Sapphire, Ruby and Emerald. Handmade exclusively at Deirdre O'Donnell Contemporary Jewellery