The ring is estimated to make between $3 to $5 million, although the number could far exceed expectations.

A 28.18-carat square emerald-cut Kashmir sapphire sold for nearly $5.1 million. It achieved $180,731 per carat, setting a world auction record of a price per carat of a sapphire. The untreated gem ...

If you're planning to make the commitment soon, you're most likely seeking the perfect engagement ring ... Prefer a diamond alternative instead? Moissanite and sapphire are popular choices ...

The 0.23 carat diamond ring sits alongside Kate's wedding band, which is made from Welsh gold. The delicate style can be hard to see in comparison to Kate's enormous engagement sapphire.

The hitherto undiscovered stone recently had its source verified by multiple experts, adding an extra zero to its valuation Rare Kashmari sapphire and diamond ring in 1940s setting, on sale at ...