Seventy-one golden fancy yellow diamonds weighing an astounding 111.02 total carats illuminate this elegant necklace. Each sunny, cushion-cut gem is arranged to form a perfect graduated pattern, with the central and largest diamond weighing 4.24 carats. Set in 18K yellow gold. Fewer than three percent of all the diamonds mined in the world have the honor of bearing the Fancy Yellow color grade. Just one of these stones is a rarity of nature. To find so many well-matched yellow diamonds in…