A Parti Sapphire is a tenacious stone. It has a hardness rating of 9 on the MOH scale (MOH is a hardness meter), placing it second only to diamonds. Due to its strength and durability, it is an ideal material for an engagement ring. These gemstones combine strength and beauty, making them an ideal choice for any bride, but especially for those who enjoy outdoor sports or gardening. When determining the price of a Parti Sapphire, similar to diamonds, the size, shape, cut, color, and quality all play a significant role.