The variant will only be available to markets in North America and Europe for $579 and £519 with 128GB of storage.
Other OnePlus 6 colors include two black variants (glossy and matte) and a "silk white" version accented by a rose gold trim.
In an interview with CNET, OnePlus co-founder Carl Pei said the OnePlus 6 was the company's "boldest design" yet.
Other than the fresh coat of paint however, the phone is otherwise unchanged. It features a 6.28-inch OLED display.
The phone features a USB Type-C port for charging and file transferring, as well as a headphone jack.
It also has dual rear cameras, a Snapdragon 845 chipset and dual-SIM capabilities.
Unfortunately, the phone also lacks waterproofing, wireless charging and has a shorter battery life than its OnePlus 5T predecessor. In the US, the phone doesn't work on CDMA carriers like Verizon and Sprint.
The first OnePlus 6 launched in May and earned an Editors' Choice from CNET for its high-powered hardware, reliable performance and relatively inexpensive price tag.