Jade and emerald to malachite and onyx are the gemstones designers want; ... green onyx and lemon quartz 18-carat recycled gold vermeil necklaces, £450 each, kate young x monicavinader.com.

"Jade green onyx is a favourite given the luminous, milky quality of the banding and shades of green. That said, it’s worth exploring all the other onyx varieties — from opaque Chalcedony ...

From left to right: Maitland Hyslop, Onyx; Leon Hughes, Jade; Andy MacLellan, Jade; Martin Haughan, Jade; Neil Stephenson, Onyx. ISP Onyx Group, has revealed it hopes to quadruple turnover in the ...