Kobo's diamondpattern reappears on the Vox's lock screen, which also contains a rotating selection of quotes from authors -- an immediate reminder that, at its heart, the Vox is a reading device.
If the pattern of converting diamond lanes continues, it would seem that the current purpose of the diamond lanes is less about energy or environmental policies that it is about revenue generation.
Then he discovered a new Japanese method of cutting diamonds: When viewed under a low-magnification (3x) lens, the stone refracted light in such a way as to give off a pattern of eight heart-shaped sparkles at the bottom of the diamond and eight arrow-shaped fire-bursts through the top--hence the name "hearts-and-arrows" diamonds.