King Charles III has commissioned a Scottish designer to create an official tartan for Balmoral.
The tartan is expected to "tell the story" of the historic castle, which was known as the favourite home of Queen Elizabeth II.
The design will be taken from the landscape of the estate and will be made with "respect for the environment".
Edinburgh-based textile designer Araminta Birse-Stewart has been tasked with creating the tartan which is expected to be on sale this summer.
The estate said: "United in their shared commitment to preserving Scottish cultural heritage, Balmoral Castle and Estate has commissioned Araminta Campbell to craft a bespoke tartan that tells the story of the Balmoral Castle and Estate by request of His Majesty the King.
"In this tartan, in its colours and its threads, lies the essence of Balmoral itself: a timeless sanctuary where history and majesty converge and where the spirit of Scotland’s Highlands lives on."
It added: “Balmoral Estate’s and Araminta Campbell’s mutual respect for the environment and natural world is ingrained into each element of this tartan, with natural colours and materials sourced from nature’s own palette and inspiration drawn from the grounds of Balmoral Estate and the surrounding Scottish Highlands.
“This creation is a symbol of dedication to well-made craft, a celebration of cultural heritage and a promise to uphold the highest standards of quality in every aspect of its creation.
“Each thread, each check, is a testament to both the monarch’s and Araminta Campbell’s unwavering commitment to Scotland, its people, and its traditions."
Private tours of the estate are taking place this summer for the first ever time.
All tours, priced at £100 or £150, sold out within a day.