Because it is very likely fake.

Most of the so-called Hainan Huanghuali are just red sandalwood, and the more expensive ones are white rosewood, Tengxiang wood, or other rosewood. You get what you pay for. Now the real Hainan Huanghuali raw materials are very scarce in the market, let alone the high-quality Hainan Huanghuali bracelets of Guimian.