The shape is what makes it unique, by blending marquise with round, and obviously arriving at the shape of the fruit. It resembles a water droplet in the way sparkle becomes more pronounced towards the bottom.
It is best to get the color H when buying a pear cut stone. If you end up choosing rose gold or yellow gold as the diamond ring metal, go in for something between K and J, effectively reducing the price.
A pear cut stone, in order to look good, should have clarity of either SI1 or SI2. The cut conceals inclusions pretty well, especially at the tip.
When choosing a pear cut stone, make sure that it has a depth that does not come above 66%, and that the grades of symmetry and polish are excellent. Additionally, ensure that the stone table is below 66%.
The length-to-weight ratio of a pear cut stone can be anywhere between 1.55 and 1.75, and it will look really good.