Cushion Cut Lab Grown Diamond Ring with a Concealed Halo on a Tapered Cathedral Shank

Cushion Cut Lab Grown Diamond Ring with a Concealed Halo on a Tapered Cathedral Shank

A cushion cut lab grown diamond in four claws over a concealed halo, on a plain shank that rises in a shallow cathedral curve and tapers as it approaches the head.

A cathedral shank is the arch that carries the head, and it is one of the oldest structural ideas in ring making because it does two jobs at once. It supports the setting from beneath rather than only from the sides, which means the basket can be lighter, and it visually lifts the stone by giving the eye a curve to follow up to it. Tapering the shank as it climbs makes the arch look springy rather than heavy, so a large cushion appears to sit on something delicate. The shank is left completely plain because the concealed halo already supplies the only small stones on the ring, running around the basket wall directly beneath the girdle where they are invisible from above and clearly visible from the side. The result reads as a plain solitaire from directly overhead and as a considerably richer ring from every other angle.

Center stone details

• Stone type: lab grown diamond
• Shape: cushion cut, softened square outline with rounded corners
• Carat weight: 2, 3, 4 or 5 carat, selected at checkout
• Color grade: E
• Clarity grade: VVS2
• Cut and polish: excellent
• Symmetry: excellent
• Setting: four claws over a concealed halo, carried on a cathedral arch

Accent stone details

• Concealed halo of round brilliants set into the basket wall below the girdle
• Color grade: E to F
• Clarity grade: VS or better

Band details

The shank rises in a shallow cathedral curve to meet the basket and tapers slightly as it climbs. It carries no stones and the inside is comfort rounded.

Metal options

Choose 925 sterling silver, or 10K, 14K or 18K gold in yellow, rose or white. Every metal is fully hallmarked. White gold is shown in the photographs, where the cathedral arch reads as two clean lines running up to the stone.

Ring size

The ring is made to your finger size. Select your size at checkout. If you are unsure, we will send you a printable size guide before we begin work.

Custom orders

We can change the carat weight, remove the hidden halo, add pave to the shoulders, or straighten the shank so it meets the head flat. Write to us through https://mapplegems.com/pages/contact and our workshop will prepare a quotation and a rendering before any metal is cut.

Frequently asked questions

Is a lab grown diamond a real diamond
Yes. It has the same carbon crystal structure, hardness and optical behaviour as a mined diamond and is graded on the same scales by the same laboratories.

Does the ring come with a certificate
Yes. An IGI certificate for the center stone is included at no extra charge.

What is a cathedral shank
A band whose shoulders rise in an arch to support the setting from beneath, named after the arches in cathedral architecture.

Does a cathedral shank sit well with a wedding band
The arch leaves a small gap at the head. A straight band will sit against the lowest point of the arch, and we can shape one to follow the curve if you want them flush.

Is the concealed halo visible when worn
From the side and at an angle, yes. From directly above it disappears beneath the cushion.

Can this ring be resized
Yes. The shank carries no stones.

How long does the ring take to make
Each ring is made to order. Allow fourteen to eighteen working days before dispatch.

Why buy a lab grown diamond

A cushion holds its weight in depth, so the carat figure buys a genuinely large stone on the finger. Lab grown material makes those sizes available at E colour and VVS2 clarity, with a traceable origin and no mining.

Our services

• IGI certificate for the center stone included at no extra cost
• Made to order in any size in our range
• Free resizing within the first year
• Insured worldwide shipping
• Lifetime cleaning and polishing
• Custom design service for changes to any element of this ring

About Mapple Gems

Mapple Gems is a jewellery workshop in Surat, India, the city where a large share of the world's diamonds are cut and polished. We grow, cut, grade and set in one place, which is why we can offer certified stones in fully hallmarked gold at workshop prices.

• All payments are processed securely through PayPal, one of the world's most trusted payment gateways
• Pay with your PayPal balance, or with any major credit or debit card through PayPal's secure checkout
• No PayPal account required — guest checkout available
• PayPal Purchase Protection applies to eligible orders