The Harmonic Coil Ring is a ring set in 18kt recycled yellow gold with conflict free white diamonds.Part of theHarmonic Collectionby Sandy Leong.Sandy Leong’s Harmonic Collection is designed in partnership with world-renowned diamond manufacturer, Rio Tinto. Selected for a second sequential year, Sandy was nominated to create a collection that promotes elevated, sustainable design using ethically sourced diamonds through Rio Tinto’s acclaimed Diamonds with a Story initiative. All pieces from this collection are hand crafted in 18kt recycled yellow gold, using conflict-free white diamond pave finishings.