One-of-a-Kind Jewelry

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All of Mociun's one-of-a-kind pieces are designed by Caitlin herself. She follows the custom process but without a client, trusting each piece will find its new wearer.

Only 7 weeks till Thursday, December 24th. Get in-stock items and ready-to-ship fine jewelry in time to gift for Holiday 2026 when you check out with UPS® Ground before 12pm EST Wednesday, December 16th.
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  • Closeup details of the custom jewelry displays within the Mociun Williamsburg Brooklyn Showroom interior, featuring autumnal colors, warm walnut finishes and furnishings from Bower Studios. Closeup details of the custom jewelry displays within the Mociun Williamsburg Brooklyn Showroom interior, featuring autumnal colors, warm walnut finishes and furnishings from Bower Studios.

    Get a closer look at what's meant to be yours.

    BOOK A ONE-ON-ONE

    Get a closer look at what's meant to be yours.

    BOOK A ONE-ON-ONE

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    Pineapple Rain Ring on model. Pineapple Rain Ring on model.
    Pineapple Rain Ring on light color background.

    Pineapple Rain Ring

    Pineapple Rain Ring

    $12,200
    $12,200 $12,200

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    Teal Bicolor Sapphire Geyser Stud Earrings on model. Teal Bicolor Sapphire Geyser Stud Earrings on model.
    Teal Bicolor Sapphire Geyser Stud Earrings on light color background.

    Geyser Stud Earrings - Teal Bicolor Sapphire

    Teal Bicolor Sapphire Geyser Stud Earrings

    SOLD OUT

    Sold out

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    Spraybow Ring on model. product_details::Spraybow Ring on model.
    Spraybow Ring on light color background.

    Spraybow Ring

    Spraybow Ring

    $12,000
    $12,000 $12,000

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    Double Drop Ring on model. product_details::Double Drop Ring on model.
    Double Drop Ring on light color background.

    Double Drop Ring

    Double Drop Ring

    $15,500
    $15,500 $15,500

  • Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background. Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background.

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH
  • Agate Eye Earrings on model. Agate Eye Earrings on model.
    Agate Eye Earrings on light color background.

    Agate Eye Earrings

    Agate Eye Earrings

    $5,000
    $5,000 $5,000

  • Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background. Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background.

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH
  • Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace. product_details::Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings, a Double Drop Ring the Gold 5mm Ripple Band on hand, a Link Bracelet and Gold Pearl Openable Link Bracelet on wrist and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace layered on neck.
    Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace. product_details::Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings, a Double Drop Ring the Gold 5mm Ripple Band on hand, a Link Bracelet and Gold Pearl Openable Link Bracelet on wrist and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace layered on neck.
    Blue Sapphire Gusher Charm Huggie Hoop Earrings on light color background.

    Gusher Charm Huggie Hoop Earrings - Blue Sapphire

    Blue Sapphire Gusher Charm Huggie Hoop Earrings

    $12,000
    $12,000 $12,000

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    Blue Sapphire Gusher Ring on model. product_details::Blue Sapphire Gusher Ring on model.
    Blue Sapphire Gusher Ring on light color background.

    Gusher Ring - Blue Sapphire

    Blue Sapphire Gusher Ring

    $7,500
    $7,500 $7,500

    NEW ARRIVAL

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    Teal Blue Sapphire Gusher Ring on model. Teal Blue Sapphire Gusher Ring on model.
    Teal Blue Sapphire Gusher Ring on light color background.

    Gusher Ring - Teal Blue Sapphire

    Teal Blue Sapphire Gusher Ring

    $10,000
    $10,000 $10,000

    NEW ARRIVAL

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    Yellow Sapphire Gusher Ring on model. Yellow Sapphire Gusher Ring on model.
    Yellow Sapphire Gusher Ring on light color background.

    Gusher Ring - Yellow Sapphire

    Yellow Sapphire Gusher Ring

    $7,500
    $7,500 $7,500

    NEW ARRIVAL

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    Yellow Sapphire Gusher Ring on model. product_details::Yellow Sapphire Gusher Ring on model.
    Yellow Sapphire Gusher Ring on light color background.

    Gusher Ring - Yellow Sapphire

    Yellow Sapphire Gusher Ring

    $7,000
    $7,000 $7,000

    NEW ARRIVAL

  • Birthstone Pearl Pendants styled with the 3mm Beveled Oval Chain Necklace, Hot Dog Chain Necklace and 2.4mm Curb Chain Necklaces in hand on model. January Birthstone Pearl Pendant With Garnet, November Birthstone Pearl Pendant With Citrine, December Birthstone Pearl Pendant With Turquoise, March Birthstone Pearl Pendant With Aquamarine, August Birthstone Pearl Pendant With Peridot, July Birthstone Pearl Pendant With Ruby, May Birthstone Pearl Pendant With Emerald, February Birthstone Pearl Pendant With Amethyst, September Birthstone Pearl Pendant With Sapphire in hand on model.
    November Birthstone Pearl Pendant With Citrine on light color background.

    November Birthstone Pearl Pendant With Citrine

    November Birthstone Pearl Pendant With Citrine

    $1,100
    $1,100 $1,100

  • July Birthstone Pearl Pendant With Ruby, December Birthstone Pearl Pendant With Turquoise and 2mm Ritual Chain Necklace layered with the August Birthstone Pearl Pendant With Peridot and 3mm Beveled Oval Chain Necklace on model. Birthstone Pearl Pendants styled with the 3mm Beveled Oval Chain Necklace, Hot Dog Chain Necklace and 2.4mm Curb Chain Necklaces in hand on model.
    July Birthstone Pearl Pendant With Ruby on light color background.

    July Birthstone Pearl Pendant With Ruby

    July Birthstone Pearl Pendant With Ruby

    $1,100
    $1,100 $1,100

  • Birthstone Pearl Pendants styled with the 3mm Beveled Oval Chain Necklace, Hot Dog Chain Necklace and 2.4mm Curb Chain Necklaces in hand on model. January Birthstone Pearl Pendant With Garnet, November Birthstone Pearl Pendant With Citrine, December Birthstone Pearl Pendant With Turquoise, March Birthstone Pearl Pendant With Aquamarine, August Birthstone Pearl Pendant With Peridot, July Birthstone Pearl Pendant With Ruby, May Birthstone Pearl Pendant With Emerald, February Birthstone Pearl Pendant With Amethyst, September Birthstone Pearl Pendant With Sapphire in hand on model.
    June Birthstone Pearl Pendant With Moonstone on light color background.

    June Birthstone Pearl Pendant With Moonstone

    June Birthstone Pearl Pendant With Moonstone

    $1,100
    $1,100 $1,100

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    Styled image on model featuring the Yellow Sapphire Gusher Charm Huggie Hoop Earrings, Link Necklace, an Accumulation Necklace paired with the Grand Duality Medallion Pendant, and a Gold Oval Openable Link added to the Gold Butter Chain Necklace that holds a Birthstone Pearl Pendant, Peach Charm, Small Round Memento Pendant, Harmony Pendant and Diamond Poise Charm. product_details::Styled image on model featuring the Gold Oval Openable Link, Gold Butter Chain Necklace, Accumulation Necklace, Yellow Sapphire Gusher Charm Huggie Hoop Earrings, July Birthstone Pearl Pendant With Ruby, Peach Charm, Small Round Pendant Without Chain Memento Pendant, Grand Duality Medallion Pendant, Harmony Pendant and Diamond Poise Charms.
    Styled image on model featuring the Yellow Sapphire Gusher Charm Huggie Hoop Earrings, Link Necklace, an Accumulation Necklace paired with the Grand Duality Medallion Pendant, and a Gold Oval Openable Link added to the Gold Butter Chain Necklace that holds a Birthstone Pearl Pendant, Peach Charm, Small Round Memento Pendant, Harmony Pendant and Diamond Poise Charm. product_details::Styled image on model featuring the Gold Oval Openable Link, Gold Butter Chain Necklace, Accumulation Necklace, Yellow Sapphire Gusher Charm Huggie Hoop Earrings, July Birthstone Pearl Pendant With Ruby, Peach Charm, Small Round Pendant Without Chain Memento Pendant, Grand Duality Medallion Pendant, Harmony Pendant and Diamond Poise Charms.
    Diamond Poise Charm on light color background.

    Diamond Poise Charm

    Diamond Poise Charm

    $4,000
    $4,000 $4,000

    NEW ARRIVAL

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    Tethys Ring on model. product_details::Tethys Ring on model.
    Tethys Ring on light color background.

    Tethys Ring

    Tethys Ring

    $6,500
    $6,500 $6,500

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    Scylla Ring on model. product_details::Scylla Ring on model.
    Scylla Ring on light color background.

    Scylla Ring

    Scylla Ring

    $8,750
    $8,750 $8,750