Cushion Lab-Grown Diamond Channel-Set Cathedral Engagement Ring
- Free insured shipping on every order
- Free 2-day express over $500Express 2‑day shipping is measured from when your piece is completed — not the order date — unless the item is in stock and ready to ship.
- Made to your size · final sale
- Free lifetime warranty
Details
A smooth channel of princess-cut diamonds runs up cathedral arches to the cushion. Twenty-two small princess-cut lab-grown diamonds sit edge to edge between two rails of metal, so the band feels smooth rather than prong-studded. The shoulders rise into cathedral arches that lift the cushion about 6.7 mm at the 1.00 ct size. Four prongs hold the center, and the band is about 2.6 mm wide at the base.
Choose a cushion center from 0.75 to 2.75 carats. Each center is a calibrated lab-grown diamond made to an F-G color, VS clarity specification. Carat weights are nominal and each size has a published range; the 1.00 ct size, for example, runs 0.87 to 1.05 ct. Lab-grown diamonds are real diamonds, chemically and physically the same as mined ones. If you would rather pick an individually graded loose diamond, natural or lab-grown, build it in Design Your Ring.
Available in 14K white, yellow or rose gold, or platinum. The accent diamonds are lab-grown, near-colorless stones matched to the setting. Your ring is made to order in your size (US 3 to 10; see the sizing guide) and typically ships in about 5 to 10 business days by complimentary, insured UPS Express. Because every ring is sized and made for you, rings are final sale. More cushion settings are in our Cushion-Cut Engagement Rings collection.
Specifications
Shipping & Returns
Every order ships free and fully insured by UPS Ground; orders of $500 or more ship by complimentary UPS Express, signature required on delivery (a $50 upgrade below that). Ready-to-ship pieces leave us in 2–3 business days; made-to-order pieces in 5–10.
Rings are final sale. Every ring is made or sized to your ring size, and engagement rings are set with the centre you choose, so a ring can’t be returned or exchanged for a refund or another size. Please confirm your size before you order; our concierge is glad to help. If a ring arrives damaged, defective or not as ordered, tell us within 7 days and we’ll make it right, and every piece carries our free lifetime warranty against manufacturing defects.
Answers, before you ask
Your Questions
What is a channel setting?
The accent diamonds sit in a groove cut into the band, held by continuous walls of metal on both sides instead of individual prongs. It is one of the most secure ways to set small stones, and it does not snag.
Why princess-cut accents with a cushion?
Square accents line up neatly in a channel and echo the squared outline of the cushion, while the cushion itself keeps its soft, pillowy corners and broad flashes of light.
What quality is the center diamond?
Every cushion center is a calibrated lab-grown diamond made to an F-G color, VS clarity specification. Sizes are sold by nominal carat weight with a published tolerance range, so a stone may weigh slightly over or under the headline figure within that range. If you want a specific graded stone, Design Your Ring lets you choose one individually.
Can I have a natural diamond instead?
This ring is offered with lab-grown centers. For a natural diamond, use Design Your Ring to choose a natural loose diamond with its own grading report and set it in one of our settings, or email concierge@diamondandsapphire.com and we will help.
How long does it take to make?
Each ring is made to order in your finger size. Most ship in about 5 to 10 business days, insured and signature-required. The product page shows the current timing before you check out.
Can I return it?
Rings are made to order in your size, so all rings are final sale. Check the sizing guide or email our concierge before ordering if you are unsure of the size.
Drop a Hint
We’ll send a tasteful note about this piece to someone special — no pressure, just a gentle nudge.