Not everyone can complete this puzzle in under 30 seconds.
The puzzle challenges people to spot the single heart-shaped diamond in the sea of other precious stones. It was created by diamond merchants Chrisholm Hunter, who said it takes an average of more than a minute to find the diamond.
Only a small minority of people can complete the puzzle in under 30 seconds, with one in five being able to do so. You can find a clearer picture of the puzzle below, study it but make sure you time yourself to see if you are one of the special few.
