Apple is considering a gold color option for the update to the iPhone X and the larger model. The company tried to develop gold for the current X handset, but abandoned it because of production problems. All new iPhones since the 5s came in gold, including the iPhone 8. The gold option is especially appealing to consumers in Asia and may help boost sales in the region. Still, Apple may ultimately decide not to proceed with the color.
Source : http://www.latimes.com/business/la-fi-bloomberg-apple-iphone-20180226-story.html