SPINELLI KILCOLLIN Halley 18-karat gold, diamonds and emerald ring

Spinelli Kilcollin’s ‘Halley’ stack is composed of four 18-karat yellow gold (750) bands joined by three ring-links, allowing the modular piece to be worn on one finger or unfolded across four. Handcrafted in the USA, the design features two polished bands, one set with round brilliant-cut diamonds and one with round-cut emeralds in shared-prong settings.