Hi Yuki,
That depends on the budget u have set aside for the wedding bands. There are two sections.
For very high end, u can try Larry and Tiffany. Larry at Paragon is not bad. Service is good.
For mid to high end, u can try Aspial and Lee Hwa. They are both the same, just that they offer different designs but service is good at Wisma and Bugis. Can consider their FJ rings too.
Another one is Soo Kee. Their brillant rose collection is very nice too.
Tian Po so so only. Unless u are willing to pay a lot more than what is stated.
Meyson not highly encouraged.
Goldheart not bad. Their rings collection quite okie. GO to Bishan or tiong Bahru one. Their services is good. But not the Bugis one. Very poor service.
Their diamond collections is so far the best among Soo Kee, Tian Po and Lee Hwa.
If u are not particular abt the brand name, meaning not particular abt which shop u get your ring from, u may try diamond industries. Value for $$ for the GIA diamonds. In term of color, clarity, carat, u get value for $.
Hope it help u.
Enjoy shopping for it. Don't make a quick decision as you must love the ring the moment u try it on. Ignore the sales talk, trust yourself.