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Sparkle on Standby—Explore ready-to-ship jewelry.

Unless otherwise noted, pieces are made to order and ship within 3-4 weeks

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Solid Gold Wedding Bands
Enamel Bands
Diamond Bands
Colored Stone Bands
Statement Rings
Something Blue Enamel Band [Yellow Gold]

Something Blue Enamel Band

$1,100.00

Everyday Dome Ring [Yellow Gold]

Everyday Dome Ring

$1,900.00

3.64ct Boulder Opal Crystal Ring Marrow Fine
Opal ring on a finger with a neutral background
3.64ct Boulder Opal Crystal Ring Marrow Fine
Opal ring with gold setting on a brown background
3.64ct Boulder Opal Crystal Ring Marrow Fine
Opal ring on a finger with a neutral background
3.64ct Boulder Opal Crystal Ring Marrow Fine
Opal ring with gold setting on a brown background

3.64ct Boulder Opal Crystal Ring

$5,800.00
Color
14k Yellow Gold
Size 14k Yellow Gold

Marrow offers one complimentary resize per piece, ensuring your fit feels just right.
  • DESCRIPTION
  • Specs
  • materials
  • Return Policy & Shipping

A dreamy 3.64ct Boulder Australian Crystal Opal set in 14k yellow gold. This fancy cabochon showcases vibrant green, blue, and yellow hues with a rolling flashfire pattern, free of fractures. Modern, timeless and one-of-a-kind.

Please note resizing this ring adds an extra 7-10 days for delivery.

Jillian's Design Notes:
"The play of color within this opal is incredible! As the stone shifts in the light, it becomes completely mesmerizing to watch. This was one of a handful of opals I found in Tucson last year and it took me the better part of a year to decide what to do with her! I would wear her alone like a signet or stacked with a white gold dome ring."


3.64ct Boulder Australian Crystal Opal, Winston QLD, Australia | 14k gold

  • 14k Gold: Our 14k gold pieces can last a lifetime with proper care. Featuring recycled gold whenever possible, our 14k gold pieces are durable enough for everyday wear.
  • Opal: Opal, known for its stunning play-of-color, displays a mesmerizing range of hues from fiery reds and oranges to cool blues and greens. Symbolizing inspiration and creativity, opal is believed to enhance imagination and bring emotional balance to its wearer. Opals are found in various locations worldwide, including Australia, Ethiopia, Mexico, and the United States.

Unless otherwise noted, unworn line item jewelry and ready-to-ship one of a kind jewelry may be returned within 10 days of receiving your order.

Returns are subject to a 10% restocking fee or 100% store credit, along with a $60 insured shipping fee.

Marrow does not issue refunds, store credit, or exchanges for custom jewelry.

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3.64ct Boulder Opal Crystal Ring

$5,800.00
  • Related products

Made for You

Rather than mass-producing, most Marrow Fine pieces are made to order — created in your exact size and selected gold. This slower, more intentional process allows us to craft thoughtfully, beginning your piece the moment you decide it’s yours.

Worn & Lived In

Made to be worn, loved, and truly lived in. We craft each piece in reclaimed 14k gold with ethically sourced gemstones, selecting every material with intention and longevity in mind. Designed for stacking, layering, and evolving with you.

Considered Crafstmanship

Each piece is cast, set, and polished by skilled jewelers who understand the nuance of fine jewelry. From the curve of a band to the final polish, every detail is considered — because pieces meant to last deserve nothing less.

Flat lay of Freeform Gold Ring, Asymmetrical Sculpted Band and White Diamond Pave Ring

"Classic jewelry pieces that should live in every jewelry box."

Vogue

As loved by

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The attention to detail was over the top, but like in the best way, from the moment we walked in to the moment we opened the beautiful box. They know what they're doing here! Thanks again for everything!

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Honestly, I have absolutely no words for how incredible Marrow Fine is. The detail, aesthetic and knowledge this showroom holds is truly one of a kind.

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I worked with Marrow to pick out a new wedding stack after losing my wedding ring. I love Marrow's selection and style; there's nothing quite like it in the industry.

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“

Marrow has been great to work with! We have been shopping from Marrow over the last two years and love their unique pieces.

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Loved the experience I had! Have been searching for the perfect bands for a while and Marrow finally helped me find them!

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