Round Lab-Created Blue Sapphire Cabochon

These round lab-created blue sapphire cabochons are composed of man-made corundum sharing the same chemical composition and durability as natural sapphire. Each stone displays excellent clarity with vivid, even coloration ranging from medium-dark to dark blue — ideal for setting in finished jewelry intended for everyday wear.

Sapphire is one of the most popular colored gemstones in the United States, prized for its extraordinary hardness and resilience. The blue color in sapphire is caused by trace elements of iron and titanium within the corundum crystal structure. Pure corundum is naturally colorless; the presence of trace elements produces the broad spectrum of sapphire colors available. These lab-created stones are treated as synthetic, offering consistent quality and color at an accessible price point for jewelers and metalsmiths.

Sapphire is the traditional birthstone for September, making these cabochons a popular choice for birthstone jewelry. Care is straightforward — clean with warm, soapy water. Use of an ultrasonic cleaner or steam cleaner is generally considered safe for these stones.

Features

• Lab-created corundum with the same chemical composition as natural sapphire
• Vivid, even medium-dark to dark blue coloration
• Eye-clean clarity
• Opaque cabochon cut — no faceting
• Treatment: Synthetic
• September birthstone
• Suitable for everyday wear jewelry applications
• Compatible with ultrasonic and steam cleaning

Specifications

Available Options