Sea View Grand Co., Ltd. is the company that public listings consistently name as the developer of Trio Gems in Jomtien. No other projects are recorded for it, and it has no website or public history, so it is best understood as the developer of a single complex rather than an established brand.
Trio Gems was completed in 2017: three 8-storey buildings, Emerald, Sapphire and Ruby, with 315 units on about 2.3 rai near Jomtien Soi 16, roughly 400 m from Jomtien Beach. Facilities include a communal pool with a jacuzzi and a children’s pool, a gym, a garden with a playground, covered parking and 24-hour security. The building is less than ten years old, so the questions are about day-to-day running rather than major repairs: ask the management for the fee-collection report and the sinking-fund balance, find out how parking spaces are allocated, and pay attention to which building the unit is in, since that decides the view and the walk to the pool. With 315 units, it is also worth checking the remaining foreign quota early.