Here is our advice if you are looking to get a bespoke pear cut engagement ring.
1: Decide what size and dimensions you’d like your pear cut diamond to be.
Pear-shaped diamonds come in all sizes, from tiny little 0.13ct stones that are just (3x2 mm), up to, well almost any size. The largest cut diamond in the world, the Cullinan 1, is a variation on a pear cut and weighs over 530cts!
The size of the stone has a direct effect on the stones final value, the larger the stone the more it will cost, though there is a little more to it than that.
The exact weight of the stone will depend on the depth. The height x width dimension is known as the stones ‘spread’.
Exact diamonds weights will always vary however, as a guide, we can use the dimensions below to estimate the final carat weight.
5 x 3mm = 0.25ct or 1/4ct
8 x 6mm =1.25ct
5 x 4mm= 0.35ct
9 x 6mm = 1.33ct
6.5 x 4.5mm = 0.57ct
9 x 7mm = 1.75ct
7 x 5mm = 0.71ct
10 x 6mm = 1.71ct
8 x 5mm = 0.81ct
10 x 7mm = 1.8ct
8.5 x 5.5mm = 1.08ct
10 x 8mm = 2.46ct
2: Be sure to check how well the diamond is cut.
The pear cut has ‘ideal’ dimensions. That means the best ratio between the length, the width and the depth of the stone to allow it to reflect the most light. To complicate things, there is also the ratio between the table, the girdle and the culet as well at the table to width ratio. These are all important however unless they go beyond normal parameters then this won’t affect the brilliance (sparkle) of the stone too much.
Cut, is one of the 4 C’s but remember that this means more than just the shape of the stone. Really, its 2 ‘Cs’ in one, the shape and the accuracy of the cut.
3: Choose the metal you would like it set in.
In terms of colours there are three options. Yellow gold, white gold or platinum, and rose gold. The current trend is for yellow gold, demand for rose gold has decreased from a high a couple of years ago and white gold and platinum remain steady as the default choice for mounting white gemstones, aka diamonds.
Source: https://www.macrotrends.net/2541/platinum-prices-vs-gold-prices
In practical terms, there is little difference between white, yellow and rose gold. In the past, all white gold was rhodium-plated, which would have to be replated every so often however now there are high palladium alloys so this isn’t the case. If you have a white gold ring made with this alloy it will not need to be rhodium plated.
White gold and rose gold will generally cost a little more than yellow gold, however in terms of the toughness of the metal and how the finish wears they are the same, its just a question of choosing which colour you prefer for your personal style and the gemstones you have chosen.
Platinum is different. In the past, platinum had been a more expensive option, sometimes costing twice as much as white gold. What you got for the money was a heavier, harder wearing metal that didn’t need to be replated.
Today the metals are about even, with platinum even coming in a little cheaper sometimes. So if you would prefer your pear shaped diamond ring to be made out of platinum then the price is no longer a factor in the decision.
3: Choose the style of your pear cut engagement ring.
You can go with a totally custom pear diamond engagement ring design adding all manner of gemstones and shapes if you like, however, there are some popular categories that engagement rings fit into
Solitaire - A single pear-cut diamond on a metal band.
Diamond shoulders - A single pear cut diamond on a band set with diamonds.
Halo - A pear shaped diamond surrounded by smaller diamonds. The shank is often also diamond set.
3 Stone (trilogy) - A ring with 3 pear cut diamonds.
Two stone crossover - Two pear cut diamonds that cross the finger.