Ursa Major Collar – Crafted in 18K white gold (750/1000), the Ursa Major Collar is set with 1.37 carats of white diamonds (color H-G, clarity VS1-VS2) and 7.83 carats of black and grey diamonds. This breathtaking piece is centered around a large 12 mm Japanese pearl, accentuating its celestial-inspired design with a brilliant-cut finish.