Extravagant Elegance

noun excessive or unnecessary spending or behavior

adjective extravagant (related to or characterized by extravagance)

• The wedding reception was filled with extravagance, from the luxurious decor to the gourmet food.
• She always goes for the latest fashion trends, even if it means a bit of extravagance.
• I can't believe he spent that much money on such extravagance!
• His love for her knew no bounds, it was an extravagance of emotions.