Tiffanys...(for the diamonds/platinum/white gold pieces)
CARTIER...(watches & jewelry)
Harry Winston (however, I don't own anything from HW but I dream to one day)
Roberto Coin
Cartier
Bulgari
Graff (can only look right now)
But unless your buying me a truly unique/custom piece or a ROCK from the aforementioned, I prefer vintage (no name or brand name) for its history, beauty and overall design and look. I'm a sucker for almost anything vintage.
wow i like many brands and wish i can afford them. love most things from chanel jewellry and every piece from van cleef is to die for. some stuff from bvlgari and cartier.
My husband buys most of my jewellery now. His favourite right now is Cartier because its fuss-free and the SAs are good with their recommendations.
My favourite is actually our jeweller because its custom-made and I feel less guilty not paying for the brand, but it does take time and patience since there are so many options and she has so few ready pieces.