Pear Lab Grown Diamonds

What is a pear lab grown diamond?

A pear lab grown diamond is a polished stone cut to the classic teardrop outline — rounded at one end, tapering to a point — produced in a controlled laboratory environment rather than mined from the earth. The shape is also called a pear brilliant or teardrop cut, and it carries the same optical and chemical properties as its mined equivalent. Laboratory production uses either High Pressure High Temperature (HPHT) or Chemical Vapour Deposition (CVD) methods, both of which grow genuine diamond crystal. The result is a stone graded to identical standards: colour, clarity, cut and carat weight assessed in the same way by the same certifying bodies — GIA, IGI or HRD. Because laboratory growth removes the cost of mining, a pear lab grown diamond typically offers significantly greater carat weight or a higher colour and clarity grade at a comparable budget.

What makes the pear shape distinctive — and what should you look for?

The pear shape's defining characteristic is its asymmetry: one curved shoulder and one sharp apex, joined by two curved sides. This outline creates an elongating visual effect on the finger, making even a modest carat weight appear larger than an equivalent round or princess-cut stone. For pear lab grown diamonds, the ideal length-to-width ratio sits between 1.45:1 and 1.75:1 — ratios below this range look squat, while ratios above can appear too narrow for the weight. A well-cut pear should show even shoulders with no flat edges, and the point should be sharp rather than slightly blunted. One characteristic to assess is the bow-tie effect: a dark shadow across the centre of the stone that increases in visibility as cut quality falls. In a well-proportioned pear lab grown diamond, the bow-tie is minimal and does not dominate the face-up appearance. Each stone in this collection is certified, so the grading report documents the measurements needed to verify these proportions.

How much does a pear lab grown diamond cost in the UK?

Pear lab grown diamonds are priced primarily by carat weight, colour and clarity, with cut quality and certification body also influencing the figure. Compared with natural pear diamonds of identical grades, laboratory-grown stones cost considerably less per carat — a gap that widens at higher carat weights. For context, Bridebook's 2026 UK average engagement ring spend is £2,247; a pear lab grown diamond allows buyers to work comfortably within that figure while accessing grades — D-F colour, VS1-VS2 clarity, for instance — that would be significantly more expensive in a natural stone. Fancy shapes including the pear are sometimes priced slightly below rounds of the same grade because round-brilliant cutting is more wasteful of rough crystal, though this varies by individual stone. Viewing certified stones side by side in the widget below is the clearest way to compare value at different weight and grade combinations.

What happens when a pear lab grown diamond is set into a ring?

Selecting a pear lab grown diamond loose gives full control over the stone before committing to a setting. Once chosen, the stone can be set into any ring style from our Hatton Garden workshop. The process moves from consultation through CAD design to a silver or wax sample for a try-on appointment, then casting, setting, polishing and hallmarking at the London Assay Office. Lead time runs to 7-14 working days from order confirmation, depending on setting complexity. Because the pear shape has a vulnerable apex, the setting choice matters: a claw that wraps the point — a V-claw or split-prong — protects it during daily wear. Halo and solitaire settings both suit pear lab grown diamonds well, though a halo further amplifies the perceived size of the stone. Rings are resized free for life; custom orders are excluded from the standard 30-day return window.

Caring for a pear lab grown diamond

Pear lab grown diamonds share the hardness of all diamond — a 10 on the Mohs scale — so the facets resist scratching in normal wear. The primary vulnerability is the pointed tip, which can chip if struck at a certain angle, making protective claw placement important in any setting. Cleaning is straightforward: warm water, a drop of washing-up liquid and a soft brush remove the oils and residues that dull a stone's brilliance over time. Ultrasonic cleaners are generally safe for clean pear lab grown diamonds without surface-reaching inclusions, though a professional clean at the workshop each year keeps the setting secure as well as the stone bright. All rings carry a lifetime warranty, and the London Assay Office hallmark on every finished ring confirms the metal standard independently.