The Difference Between Ruby and Red Sapphire

Ruby and red sapphire are both beautiful gemstones that are prized for their deep red color. However, there are a few key differences between these two stones that you should be aware of when shopping for jewelry.

1. Chemical composition: Ruby and red sapphire are both varieties of corundum, which is a mineral made up of aluminum oxide. Ruby is a red variety of corundum, while red sapphire is simply a sapphire that is red in color.

2. Hardness: Ruby and red sapphire are both extremely hard stones, but ruby is slightly harder than red sapphire. On the Mohs scale of mineral hardness, ruby is rated as a 9 out of 10, while red sapphire is rated as an 8 out of 10. This means that ruby is slightly more durable and resistant to scratching than red sapphire.

3. Birthstones: Ruby is the birthstone for July, while sapphire is the birthstone for September.

4. Price: Ruby is typically more expensive than red sapphire due to its rarity and hardness. However, the price of both stones can vary based on factors such as quality, size, and origin.

While ruby and red sapphire are similar in many ways, there are a few key differences that you should be aware of when shopping for these stones. If you are looking for a durable, red gemstone, ruby may be the better choice, while red sapphire is a good option if you are looking for a beautiful, affordable alternative.