Genderwomens gemstonerhinestone opal length of earringsinch059approx15cm width of earringsinch078approx2cm jewelry typehoop earrings drop earrings stud earrings occasionwedding bikini thank you beach graduation christmas gifts congratulations halloween housewarming office career birthday outdoor anniversary special occasion sports gift casual engagement daily valentine party business materialopal rhinestone alloy shapecircle jewelry stylesexy luxury hypoallergen