Montana Sapphire round solitaire pendant.

5mm (.60 ct) round Montana sapphire set in 925 sterling silver.

Comes with an 18" chain.

Matching earrings are here: https://www.montanasapphires.com/10-montana-sapphire-bezel-set-earrings-in-sterling-silver/

These are natural stones and will vary in many shades of blue to blue/green.  Please inquire about other color sapphires.