Green Montana Sapphire Engagement Ring . This 2.135ct natural Green Montana Sapphire ring boasts an incredibly clean stone with a light hint of a yellow sun spot in the middle and set into 18k gold.

Today, some more common Montana sapphires can fetch $1000—$4000 a carat, ... In the late 19th century, Tiffany & Co. started using Montana sapphires in their jewelry designs.

Green Montana Sapphire Engagement Ring . This 2.135ct natural Green Montana Sapphire ring boasts an incredibly clean stone with a light hint of a yellow sun spot in the middle and set into 18k gold.

She and her husband, Stanley, have owned Yogo Sapphire Jewelry Co. at 1219 Central Ave. since 1985. After more then 30 years, the Gunthers are closing their doors.

“The Montana sapphires that I’m drawn to usually show three colors,” Ms. Chelsea said, adding that Montana-sapphire rings from her line start at $1,500 and can cost as much as $8,500.

Round Diamond and Sapphire Engagement Ring, $3,999.99. Round Diamond and Sapphire Engagement Ring, $4,799.99. Click here to check out all the current offerings. Skip to main content.

Making jewelry with pink sapphires is more complicated than it seems, said the independent jewelry designer Suzanne Kalan, 63, who is based in Los Angeles and has used the gem since 2009.