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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.

Margot Pear Wave Ring – 1ct pear diamond wave engagement ring in 14k yellow gold, by Marrow Fine [Yellow Gold]
 
Margot Pear Wave Ring – 1ct pear diamond wave engagement ring in 14k yellow gold, by Marrow Fine [Yellow Gold]
Margot Pear Wave Ring in a stack of yellow gold diamond wave rings on the hand
READY TO SHIP
2.50ct Old Euro Lab-Created Diamond Astrid Bombe Ring – three-stone open bombe engagement ring in 14k yellow gold, by Marrow Fine
 
2.50ct Old Euro Lab-Created Diamond Astrid Bombe Ring – three-stone open bombe engagement ring in 14k yellow gold, by Marrow Fine
2.50ct Old Euro Lab-Created Diamond Astrid Bombe Ring worn on hand, dark background
ONE-OF-A-KIND • READY TO SHIP
2.76ct Old Mine Lab-Created Diamond Marquise Ring – marquise on a sculptural V double shank in 14k yellow gold, by Marrow Fine
2.76ct Old Mine Lab-Created Diamond Marquise Ring – marquise on a sculptural V double shank in 14k yellow gold, by Marrow Fine
2.76ct Old Mine Lab-Created Diamond Marquise Ring – marquise on a sculptural V double shank in 14k yellow gold, by Marrow Fine
2.76ct Old Mine Marquise Ring stacked with an open shank diamond band on hand
ONE-OF-A-KIND • READY TO SHIP
3.10ct Old Cut Lab-Created Pear Diamond Paloma + Estelle Band – tilted pear in a bezel with a diamond wave band, 14k yellow gold, by Marrow Fine
3.10ct Old Cut Lab-Created Pear Diamond Paloma + Estelle Band – tilted pear in a bezel with a diamond wave band, 14k yellow gold, by Marrow Fine
3.10ct Old Cut Lab-Created Pear Diamond Paloma + Estelle Band – tilted pear in a bezel with a diamond wave band, 14k yellow gold, by Marrow Fine
3.10ct Old Cut Pear Paloma + Estelle Band worn on hand with two diamond rings
ONE-OF-A-KIND • READY TO SHIP
0.52ct Pear Pinky Bombe Ring – east-west pear diamond in a domed 14k yellow gold pinky ring, by Marrow Fine
 
0.52ct Pear Pinky Bombe Ring – east-west pear diamond in a domed 14k yellow gold pinky ring, by Marrow Fine
0.52ct Pear Pinky Bombe Ring styled with gold rings and bracelets, sheer black tights
NEW • ONE-OF-A-KIND
1.16ct Spinel Maeve Ring – pink oval spinel in a six-prong 14k yellow gold setting, by Marrow Fine [Yellow Gold]
 
1.16ct Spinel Maeve Ring – pink oval spinel in a six-prong 14k yellow gold setting, by Marrow Fine [Yellow Gold]
1.16ct Spinel Maeve Ring stacked with two contour bands on hand [Yellow Gold]
ONE-OF-A-KIND • READY TO SHIP
1.50ct Rubellite Tourmaline Sloane Ring – red pear rubellite in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.50ct Rubellite Tourmaline Sloane Ring – red pear rubellite in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.50ct Rubellite Tourmaline Sloane Ring – red pear rubellite in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.50ct Rubellite Tourmaline Sloane Ring stacked with Mini Lucy and Lucy bands [Yellow Gold]
ONE-OF-A-KIND • READY TO SHIP
1.35ct Blue Tourmaline Odessa Ring – emerald cut teal-blue tourmaline in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.35ct Blue Tourmaline Odessa Ring – emerald cut teal-blue tourmaline in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.35ct Blue Tourmaline Odessa Ring – emerald cut teal-blue tourmaline in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.35ct Blue Tourmaline Odessa Ring stacked with two bands on hand [Yellow Gold]
ONE-OF-A-KIND • READY TO SHIP
1.68ct Spinel Annette Ring – emerald cut charcoal spinel in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.68ct Spinel Annette Ring – emerald cut charcoal spinel in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.68ct Spinel Annette Ring – emerald cut charcoal spinel in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.68ct Spinel Annette Ring stacked with diamond bands on hand
ONE-OF-A-KIND • READY TO SHIP
1.63ct Pink Tourmaline Jillian with 0.19tcw Natural Trillions – oval tourmaline and trillion diamonds in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.63ct Pink Tourmaline Jillian with 0.19tcw Natural Trillions – oval tourmaline and trillion diamonds in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.63ct Pink Tourmaline Jillian with 0.19tcw Natural Trillions – oval tourmaline and trillion diamonds in 14k yellow gold, by Marrow Fine [Yellow Gold]
1.63ct Pink Tourmaline Jillian ring stacked with diamond bands on hand
ONE-OF-A-KIND • READY TO SHIP
2.33ct Blushy Lavender Sapphire East-West Annette Ring – emerald cut sapphire in 14k yellow gold, by Marrow Fine [Yellow Gold]
2.33ct Blushy Lavender Sapphire East-West Annette Ring – emerald cut sapphire in 14k yellow gold, by Marrow Fine [Yellow Gold]
2.33ct Blushy Lavender Sapphire East-West Annette Ring – emerald cut sapphire in 14k yellow gold, by Marrow Fine [Yellow Gold]
2.33ct Blushy Lavender Sapphire East-West Annette Ring stacked with gold bands
ONE-OF-A-KIND • READY TO SHIP
2.41ct Purple Sapphire East-West Annette Ring – radiant cut purple sapphire in 14k yellow gold, by Marrow Fine [Yellow Gold]
2.41ct Purple Sapphire East-West Annette Ring – radiant cut purple sapphire in 14k yellow gold, by Marrow Fine [Yellow Gold]
2.41ct Purple Sapphire East-West Annette Ring – radiant cut purple sapphire in 14k yellow gold, by Marrow Fine [Yellow Gold]
2.41ct Purple Sapphire East-West Annette Ring stacked with diamond bands on hand
ONE-OF-A-KIND • READY TO SHIP
0.89tcw Zambian Emerald Ear Crawlers – bezel-set geometric emeralds in 14k yellow gold, by Marrow Fine [Yellow Gold]
0.89tcw Zambian Emerald Ear Crawlers – bezel-set geometric emeralds in 14k yellow gold, by Marrow Fine [Yellow Gold]
0.89tcw Zambian Emerald Ear Crawlers – bezel-set geometric emeralds in 14k yellow gold, by Marrow Fine [Yellow Gold]
0.89tcw Zambian Emerald Ear Crawler worn on the ear
ONE-OF-A-KIND • READY TO SHIP
3.07ct Spinel Sloane Ring – gray-violet pear spinel with tab prongs in 14k yellow gold, by Marrow Fine
 
3.07ct Spinel Sloane Ring – gray-violet pear spinel with tab prongs in 14k yellow gold, by Marrow Fine
3.07ct Spinel Sloane Ring worn on hand, dark background
ONE-OF-A-KIND • READY TO SHIP
0.99tcw Emerald Arno Band – pear and emerald cut Zambian emeralds in 14k yellow gold, by Marrow Fine
 
0.99tcw Emerald Arno Band – pear and emerald cut Zambian emeralds in 14k yellow gold, by Marrow Fine
0.99tcw Emerald Arno Band stacked with a diamond engagement ring on hand
ONE-OF-A-KIND • READY TO SHIP
0.74ct Oval Emerald and Turquoise Open Bombe Ring – Zambian emerald with turquoise accents in 14k yellow gold, by Marrow Fine
 
0.74ct Oval Emerald and Turquoise Open Bombe Ring – Zambian emerald with turquoise accents in 14k yellow gold, by Marrow Fine
0.74ct Oval Emerald and Turquoise Open Bombe Ring worn on hand
ONE-OF-A-KIND • READY TO SHIP
0.42ct Emerald and 0.07tcw Diamond Open Bombe Ring – Zambian emerald and diamonds in 14k yellow gold, by Marrow Fine
 
0.42ct Emerald and 0.07tcw Diamond Open Bombe Ring – Zambian emerald and diamonds in 14k yellow gold, by Marrow Fine
0.42ct Emerald and 0.07tcw Diamond Open Bombe Ring worn on hand
ONE-OF-A-KIND • READY TO SHIP
1.57ct Emerald, Beryl, and Diamond 5 Stone Ring – bezel-set emerald cut stones in 14k yellow gold, by Marrow Fine
 
1.57ct Emerald, Beryl, and Diamond 5 Stone Ring – bezel-set emerald cut stones in 14k yellow gold, by Marrow Fine
0.19tcw Emerald Tracer Band nested around the 1.57ct Emerald, Beryl, and Diamond 5 Stone Ring
ONE-OF-A-KIND • READY TO SHIP
0.19tcw Emerald Tracer Band – curved stacking band of bezel-set emeralds in 14k yellow gold, by Marrow Fine
 
0.19tcw Emerald Tracer Band – curved stacking band of bezel-set emeralds in 14k yellow gold, by Marrow Fine
0.19tcw Emerald Tracer Band nested around the 1.57ct Emerald, Beryl, and Diamond 5 Stone Ring
ONE-OF-A-KIND • READY TO SHIP
1.97ct Australian Opal Charm – triangular opal bezel set in 14k yellow gold, by Marrow Fine
 
1.97ct Australian Opal Charm – triangular opal bezel set in 14k yellow gold, by Marrow Fine
1.97ct Australian Opal Charm worn on a gold chain
ONE-OF-A-KIND • READY TO SHIP