and this oval-cut shows off the stone's rich blue hue. Oval sapphire and diamond ring in platinum with a pave setting, price upon request, kwiat.com. The rarest and most coveted yellow sapphires ...

Do you know what to consider when buying blue sapphire engagement rings? If you’re planning to surprise your partner with an unforgettable ring, a vivid blue sapphire might be just what you need.

This demand is largely due to Kate Middleton's engagement ring, originally given to Princess Diana. The 12-carat oval Ceylon blue sapphire has reignited demand for sapphires, a gem Sri Lanka is ...