Mountain Sky Blue Montana sapphire engagement ring cast in wood in 18k gold, long marquise-oval soft blue stone set sideways
Side view of the Mountain Sky Blue ring, the sky blue sapphire in a flowing gold bezel
Mountain Sky Blue ring from the opposite side, the elongated blue stone and textured band
Back of the Mountain Sky Blue ring, the open setting beneath the pale blue sapphire
Mountain Sky Blue sapphire ring worn on a model&

Mountain Sky Blue Montana Sapphire Ring - 2.5ct

Cast in Wood

Regular price$11,500.00
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Shipping calculated at checkout.

This one of a kind Mountain Sky Blue Moval (Marquise/Oval) Montana Sapphire is set in wood cast 18k Gold and is truly a show stopping stone. The color is a soft sky blue with a wonderful clarity and a wisp of silk through the center of the stone, like a high cirrus cloud.

Ready to Ship This piece is ready to ship. Please allow up to 4 business days for sizing and finishing before your order ships.

Ships in 4 business days

Ready to ship, sized to you

Return policy

Returnable within 14 days in the same condition (3% fee)

Free ring sizing

One complimentary resize within the first year

We work directly with miners in Montana to source our rough sapphires, then have each stone hand-cut by our dedicated team. Our cutting process is designed to remove as little material as possible, preserving the natural character, color, and shape of the original rough.

Rather than forcing each stone into a standardized shape, we create sapphires that are naturally one of a kind, with their own character and proportions.

This piece was created with recycled 18k yellow gold, our preferred gold alloy for its rich, warm color and beautiful density. 18k gold has a depth and warmth that we love, while still offering the strength and durability needed for everyday wear.

It’s a material chosen to be worn, lived in, and passed down for generations.

Please allow up to 4 business days for sizing and finishing before your order ships.

Complimentary FedEx 2-day shipping within the US. Every package is insured, includes tracking, and must be signed for at delivery.

We've partnered with Shop Pay to give you the option to pay for your piece in monthly installments at checkout. Choose Shop Pay at checkout to view available payment plans and select the option that works best for you.

Payment plan availability and terms vary and are provided by Shop Pay.

How It's Made

How It's Made

The cast in wood process is a method of forging 18k gold in hand carved wooden boxes. It is an old technique, used by the Ancient Romans, and has not been seen for a thousand years or more. At Rigby Leigh, we have re-developed this technique and are the only ones in the world working this way.

This technique leaves the ring with the shape and finish of the natural wood grain, for a uniquely organic look. It also means each piece is unique and un-repeatable. No two pieces ever can look the same, because it is all down to the natural grain.

Each piece is then presented in a handmade wood box, made out of the wooden crucible it was cast in. This box beautifully preserves the moment in nature captured in your piece, a beautiful keepsake or an unforgettable presentation piece.


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