Genderwomens gemstoneimitation opal jewelry length of earringsinch236approx6cm width of earringsinch118approx3cm 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 materialimitation pearl alloy shapeheart cut jewelry stylefashion british