This stunning Edwardian/early-Art Deco jewel, expertly hand fabricated in platinum over 18K yellow gold - circa 1915-20, comes in a surprising and refreshingly different color combination than 99 percent of its counterparts. The sizable (just shy of 1 1/2 inches) puffed diamond heart is blanketed with a blazing array of icy-white old mine-cut diamonds, together weighing 4.50 carats, each one different from the last and every single one electric. The diamonds are surrounded by a single row of expertly executed calibre-cut synthetic* sapphires, perfectly matched in color. As with most masterfully constructed pieces, the reverse is lovely as well - turn it over and gaze at the carefully a-jour segments that securely hold each precious gem. A hidden bail folds out and swivels as needed to be worn as a necklace as well. *Back in the day (the early-20th-century), due to their color consistency and flawless clarity, synthetic sapphires were considered a modern improvement over their natural counterparts; the subtle differences ony detectable with a microscope.