This labyrinth of exotic features is present along the edge of Russia's Chaunskaya Bay (vivid blue half circle) in northeastern Siberia.
A cushion-shaped fancy vivid blue diamond weighing 6.01 carats, flanked on each side by an oval pink diamond weighing 0.46 and 0.44 carat respectively, mounted in platinum.
His father claimed the water here was the most amazing color he'd ever seen-a vivid blue-green he'd dubbed Hokkaido green.
The ring is set with a triangular-cut fancy vivid blue diamond, weighing 10.95 carats, and a triangular-cut diamond, weighing 9.87 carats, and dates from 1972.
The sale broke a record for price-per-carat for any fancy vivid blue diamond sold at auction.
