Original Star K Pear Shape 9x7mm Created Sapphire Earring Studs. The beautiful Original Star Kâ„¢ Pear Shape 9x7mm Created Sapphire Earring Studs, crafted in .925 Sterling Silver. This attractive design is set with 2 stones prong set blue Pear Shape Created Sapphire. This design measures 7.00 mm wide, 9.00 mm long. So buy this Original Star K Pear Shape 9x7mm Created Sapphire Earring Studs Now $39.99.