Orange Sapphire 18ct Gold Gemstone NecklaceAdd a pop of color with our Orange Sapphire 18ct Gold Necklace. This necklace boasts a single, slender line of orange sapphires, surrounded by 18ct yellow gold. The minimalist style combined with vibrant gemstones makes it a standout piece. SAPPHIRES Sapphires are prized for their durability and vibrant range of colors. The most common color is blue, but sapphires can be found in a rainbow of other colours, including orange, pink, yellow and purple.