The Stripe collection is made up of seven pieces, including coasters, candleholders and an incense burner. Gray has reinterpreted the radiating stripe used on 11th century ceramic vessels commissioned by royal courts throughout the medieval Islamic world, using black marble inlayed with amazonite.
The Petal Collection comprises 18 pieces including a table, several bowls and a pastry platter, all featuring a radiating geometric petal pattern referencing the dome of the 17th century Sheikh Lotfollah Mosque in Isfahan, Iran – a UNESCO World Heritage Monument.
Each piece is made from marble inlayed with minerals including blue lapis lazuli, rose quartz and ruby.
"I wanted to create something reflecting the beauty, purity and rarity of the materials I am using," said Gray. "Lapis Lazuli is one of the most iconic stones in history, which appears throughout the arts of the Islamic world, even ground into blue ink for illuminating precious manuscripts."
"I was very keen to work with Abdul Karim and his fantastic caliber of master craftsmen," said Gray. "Their practices uphold ancient tradition and it is important to keep the delicate, highly specialised traditions alive and seek methods of passing these on to the next generation in a way that is relevant to today's design world."
The entire range has been hand carved in Jaipur, where The Ruby Tree is aiming to create income and rebuild social support for artisans specialising in the traditional Islamic crafts the collection showcases.
"My aim is, and has always been, to find ways to revive these endangered arts and crafts and find a market so that the traditions can be passed on to the next generation," said Abdul Karim.
Gray added: "The Islamic references will certainly resonate with some people, but it is still great if these references are just taken as beautiful geometric pattern or art. Importantly, I hope that people will respond to the use of these historic and semi-precious materials in a contemporary way."
The collection is available exclusively through London department store Harrods.
Photography is by Julian Abrams.