This is a beautiful Polished Aquamarine specimen from the Pakistan set into a .925 sterling silver pendant. 

Polished Aquamarine Pendant | Pakistan

• .925 Sterling Silver Setting
• Silver Plate Chain Included
  

Aquamarine is a blue to blue-green variety of beryl, a beryllium aluminum silicate mineral (Be₃Al₂Si₆O₁₈). Its color is caused by trace amounts of iron within the crystal structure. Aquamarine has a Mohs hardness of 7.5 to 8, making it a durable gemstone suitable for jewelry. It typically forms in pegmatite veins and is found in countries such as Brazil, Madagascar, Pakistan, Nigeria, and the United States. Known for its clarity and brilliance, high-quality aquamarine is often faceted for gemstones, while translucent specimens are used for carvings and cabochons.