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Shop All One-Of-A-Kind Designs

Designs so unique Marrow Fine only made one. Each one-of-a-kind piece features hand-selected gemstones sourced from around the world. From alternative engagement rings with rare stones to bold cocktail rings and statement pendants — when a piece is gone, it's gone for good.

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6.20tcw Sunstone Cuff [Yellow Gold]
6.20tcw Sunstone Cuff [Yellow Gold]
6.20tcw Sunstone Cuff [Yellow Gold]
Image of Sunstone Cuff stacked with the Twist Link Bracelet on a wrist.
ONE-OF-A-KIND • READY-TO-SHIP
1.41ct Colombian Emerald and Diamond Three Stone Ring
1.41ct Colombian Emerald and Diamond Three Stone Ring
1.41ct Colombian Emerald and Diamond Three Stone Ring
1.41ct Colombian Emerald and Diamond Three Stone Ring on hand
ONE-OF-A-KIND • READY-TO-SHIP
0.99ctw Diamond Abstract Bezel Studs - Marrow Fine
 
0.99ctw Diamond Abstract Bezel Studs - Marrow Fine
White Diamond Abstract Bezel Studs
ONE-OF-A-KIND • READY-TO-SHIP
0.57ct Marquise Diamond Abstract Bezel Ring
 
0.57ct Marquise Diamond Abstract Bezel Ring
0.57ct Marquise Diamond Abstract Bezel Ring on hand
ONE-OF-A-KIND • READY-TO-SHIP
0.40ct Oval Diamond Abstract Bezel Ring
 
0.40ct Oval Diamond Abstract Bezel Ring
0.40ct Oval Diamond Abstract Bezel Ring on hand
ONE-OF-A-KIND • READY-TO-SHIP
2.02ct Sapphire In-Orbit Ring
 
2.02ct Sapphire In-Orbit Ring
2.02ct Sapphire In-Orbit Ring on hand
one-of-a-kind
0.46ct Diamond In-Orbit Ring
 
0.46ct Diamond In-Orbit Ring
0.46ct Diamond In-Orbit Ring on hand
ONE-OF-A-KIND
2.19ct Purplish-Pink Sapphire Marrow x Sammi Florence Ring [yellow gold]
2.19ct Purplish-Pink Sapphire Marrow x Sammi Florence Ring [yellow gold]
2.19ct Purplish-Pink Sapphire Marrow x Sammi Florence Ring [yellow gold]
Flat lay of Marrow x Sammi colored gemstone Florence rings
ONE-OF-A-KIND • READY-TO-SHIP
1.56ct Pink Tourmaline Florence Ring
1.56ct Pink Tourmaline Florence Ring
1.56ct Pink Tourmaline Florence Ring
1.56ct Pink Tourmaline Marrow x Sammi Florence Ring
ONE-OF-A-KIND • READY-TO-SHIP
3.06ct Pink Sapphire Marrow x Sammi Florence Ring [Yellow Gold]
3.06ct Pink Sapphire Marrow x Sammi Florence Ring [Yellow Gold]
3.06ct Pink Sapphire Marrow x Sammi Florence Ring [Yellow Gold]
3.06ct Pink Sapphire Marrow x Sammi Florence Ring flat lay
ONE-OF-A-KIND • READY-TO-SHIP
3.23ct Light Blue Sapphire Florence Ring [yellow gold]
3.23ct Light Blue Sapphire Florence Ring [yellow gold]
3.23ct Light Blue Sapphire Florence Ring [yellow gold]
3.23ct Light Blue Sapphire Marrow x Sammi Florence Ring flat lay
ONE-OF-A-KIND • READY-TO-SHIP
3.35ct Violet Spinel Florence Ring [Yellow gold]
3.35ct Violet Spinel Florence Ring [Yellow gold]
3.35ct Violet Spinel Florence Ring [Yellow gold]
Close up of 3.35ct Violet Spinel Marrow x Sammi Florence Ring on woman's hands
JILLIAN'S PICK • READY-TO-SHIP
2.02tcw Tanzanite Cuff
 
2.02tcw Tanzanite Cuff
2.02tcw Tanzanite Cuff shot on a person's wrist styled with the White Diamond Maria Tennis Bracelet.
ONE-OF-A-KIND • READY-TO-SHIP
2.93tcw Dark Blue Sapphire Tennis Bracelet - Marrow Fine
 
2.93tcw Dark Blue Sapphire Tennis Bracelet - Marrow Fine
Close up of wrist featuring 1.56tcw Indigo Sapphire Tennis Bracelet, 1.58tcw Dark Blue Sapphire Tennis Bracelet and 2.93tcw Dark Blue Sapphire Tennis Bracelet
ONE-OF-A-KIND • READY TO SHIP
2.24tcw Green Sapphire Everyday Cuff [Yellow Gold]
 
2.24tcw Green Sapphire Everyday Cuff [Yellow Gold]
2.24tcw Green Sapphire Everyday Cuff [on wrist]
ONE-OF-A-KIND • READY-TO-SHIP
1.76ct Pink Sapphire and Diamond Ring with Cosmic Light & Third Band [Yellow Gold]
 
1.76ct Pink Sapphire and Diamond Ring with Cosmic Light & Third Band [Yellow Gold]
1.76ct Pink Sapphire and Diamond Ring Stack [on hand]
ONE-OF-A-KIND • READY-TO-SHIP
2.26ct Black Diamond Stella Ring [Yellow Gold]
 
2.26ct Black Diamond Stella Ring [Yellow Gold]
2.26ct Black Diamond Stella Ring [on hand]
ONE-OF-A-KIND • READY-TO-SHIP
2.62ct Sapphire and Diamond Ring with Tracer Band [Yellow Gold]
 
2.62ct Sapphire and Diamond Ring with Tracer Band [Yellow Gold]
2.62ct Sapphire and Diamond Ring with Tracer Band [on hand]
ONE-OF-A-KIND • JILLIAN'S PICK
1.59ct Sapphire and Diamond Ring with Tracer Band [Yellow Gold]
 
1.59ct Sapphire and Diamond Ring with Tracer Band [Yellow Gold]
Close up of 1.59ct Sapphire and Diamond Ring with Tracer Band on hand
ONE-OF-A-KIND • READY-TO-SHIP
2.18ct Diamond and 0.62tcw Diamond Three Stone Ring - Marrow Fine
 
2.18ct Diamond and 0.62tcw Diamond Three Stone Ring - Marrow Fine
2.18ct Diamond and 0.62tcw Diamond Three Stone Ring [on hand]
ONE-OF-A-KIND • READY-TO-SHIP