10.96 ct Certified Natural Unheated Madagascar Star Sapphire Oval Cabochon

This certified natural star sapphire weighs 10.96 carats and is cut in an oval cabochon shape. The gemstone measures 10.85 × 10.08 × 9.56 mm and displays a yellowish brown body color with a golden ray star effect under direct light. Origin Madagascar, this sapphire is unheated and belongs to the natural corundum family.

Professionally supplied by Liyanage Lapidary from the gem island Sri Lanka, this gemstone is suitable for gem dealers, collectors, jewelers, and custom jewelry manufacturers looking for a unique natural star sapphire with exceptional size, certification support, and strong optical character.

Gemstone Explanation

Star sapphire is a variety of corundum that displays a natural optical effect known as asterism. This effect appears as a star-like ray across the surface of the stone when viewed under a direct light source. The star effect is usually caused by fine needle-like inclusions inside the gemstone.

This 10.96 ct star sapphire has a yellowish brown body color with a golden ray appearance. The oval cabochon cut is used to reveal the star effect properly. Unlike faceted sapphires, star sapphires are usually cut with a smooth domed surface to show the optical phenomenon clearly.

Origin Explanation

This gemstone is from Madagascar, a recognized source for natural sapphires, star sapphires, rubies, spinel, garnet, and many other colored gemstones. Madagascar star sapphires are appreciated by collectors and professional gemstone buyers for their natural optical effects, color variety, and unique internal features.

Although the gemstone origin is Madagascar, it is professionally supplied by Liyanage Lapidary from Sri Lanka, known as the gem island. Sri Lanka has a long tradition of gemstone cutting, polishing, trading, and international gemstone supply.

Gemstone Details

Gemstone: Certified Natural Star Sapphire

Species: Natural Corundum

Weight: 10.96 ct

Measurements: 10.85 × 10.08 × 9.56 mm

Shape / Cut: Oval cabochon

Color: Yellowish brown with golden ray star effect

Clarity / Transparency: Translucent

Treatment: Unheated

Origin: Madagascar

Special Note: Exceptional size, golden ray star effect, certified identification

Supplier: Liyanage Lapidary

Recommended Use: Collector stone, custom jewelry, pendant, ring, dealer stock, unique gemstone collection

Durability and Gemstone Family

Star sapphire belongs to the corundum family, the same mineral family as sapphire and ruby. Corundum is one of the most durable gemstone materials used in jewelry, with strong resistance to wear when properly set. This makes star sapphire suitable for rings, pendants, and custom jewelry designs.

Because this gemstone is a cabochon with a natural star effect, jewelry setting should be planned carefully to keep the dome visible and allow direct light to display the star.

Jewelry Use Suggestions

This 10.96 ct oval cabochon star sapphire can be used as a center stone for a custom ring, pendant, or collector jewelry piece. The yellowish brown body color with golden ray effect works well with yellow gold, rose gold, white gold, or silver settings.

For B2B buyers, this gemstone offers a strong combination of size, unheated condition, certified identification, natural asterism, and unique collector appeal. It is suitable for jewelers, collectors, custom jewelry manufacturers, and gem dealers looking for distinctive gemstones beyond standard faceted sapphire inventory.