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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.

2.68ct Australian Opal Charm – teardrop opal in a 14k yellow gold bezel, by Marrow Fine
 
2.68ct Australian Opal Charm – teardrop opal in a 14k yellow gold bezel, by Marrow Fine
2.68ct Australian Opal Charm worn on the neck, layered with a second charm
ONE-OF-A-KIND • READY TO SHIP
4.88ct Australian Opal Charm – freeform Lightning Ridge opal in a 14k yellow gold bezel, by Marrow Fine
 
4.88ct Australian Opal Charm – freeform Lightning Ridge opal in a 14k yellow gold bezel, by Marrow Fine
4.88ct Australian Opal Charm worn on the neck with a small diamond charm
ONE-OF-A-KIND • READY TO SHIP
South Sea Silver Keshi Pearls – 19" silver keshi pearl strand necklace with 14k yellow gold clasp, by Marrow Fine
 
South Sea Silver Keshi Pearls – 19" silver keshi pearl strand necklace with 14k yellow gold clasp, by Marrow Fine
South Sea Silver Keshi Pearls layered with gold charm necklaces
ONE-OF-A-KIND • READY TO SHIP
Tahitian Keshi Pearl Charm – baroque keshi pearl drop charm with 14k yellow gold bail, by Marrow Fine
 
Tahitian Keshi Pearl Charm – baroque keshi pearl drop charm with 14k yellow gold bail, by Marrow Fine
Tahitian Keshi Pearl Charm layered with a keshi pearl strand necklace
ONE-OF-A-KIND • READY TO SHIP
Tahitian Keshi Pearl Charm – baroque keshi pearl drop charm with 14k yellow gold bail, by Marrow Fine
 
Tahitian Keshi Pearl Charm – baroque keshi pearl drop charm with 14k yellow gold bail, by Marrow Fine
Tahitian Keshi Pearl Charm on a gold chain layered with a rope chain
ONE-OF-A-KIND • READY TO SHIP
1.91ct Australian Opal and 0.20tcw Turquoise Mary Ring – opal with a black diamond headdress in 14k yellow gold, by Marrow Fine
 
1.91ct Australian Opal and 0.20tcw Turquoise Mary Ring – opal with a black diamond headdress in 14k yellow gold, by Marrow Fine
1.91ct Australian Opal and Turquoise Mary Ring worn on hand
ONE-OF-A-KIND • JILLIAN'S PICK
4.45ct Australian Opal and 0.23tcw Emerald Mary Ring – opal with a black diamond headdress and emerald accents in 14k yellow gold, by Marrow Fine
 
4.45ct Australian Opal and 0.23tcw Emerald Mary Ring – opal with a black diamond headdress and emerald accents in 14k yellow gold, by Marrow Fine
4.45ct Australian Opal and Emerald Mary Ring worn on hand
ONE-OF-A-KIND • JILLIAN'S PICK
2.67ct Australian Opal and 0.20tcw Turquoise Mary Ring – opal with a black diamond headdress in 14k yellow gold, by Marrow Fine
 
2.67ct Australian Opal and 0.20tcw Turquoise Mary Ring – opal with a black diamond headdress in 14k yellow gold, by Marrow Fine
2.67ct Australian Opal and Turquoise Mary Ring worn on hand
ONE-OF-A-KIND • JILLIAN'S PICK
1.90ct Old European Diamond Ring with Tracer Band – antique cut diamond set in 14k yellow gold, by Marrow Fine
 
1.90ct Old European Diamond Ring with Tracer Band – antique cut diamond set in 14k yellow gold, by Marrow Fine
1.90ct Old European Diamond Ring with Tracer Band worn on hand
ONE-OF-A-KIND • JILLIAN'S PICK
2.52ct Old Mine Lab-Created Moval Diamond Ring – elongated moval diamond in a 14k yellow gold bezel, by Marrow Fine
 
2.52ct Old Mine Lab-Created Moval Diamond Ring – elongated moval diamond in a 14k yellow gold bezel, by Marrow Fine
2.52ct Old Mine Lab-Created Moval Diamond Ring stacked with a mixed shape diamond band
ONE-OF-A-KIND • READY TO SHIP
3.62ct Old Mine Lab Created Diamond Ring – cushion old mine diamond in a chunky 14k yellow gold bezel, by Marrow Fine
3.62ct Old Mine Lab Created Diamond Ring – cushion old mine diamond in a chunky 14k yellow gold bezel, by Marrow Fine
3.62ct Old Mine Lab Created Diamond Ring – cushion old mine diamond in a chunky 14k yellow gold bezel, by Marrow Fine
3.62ct Old Mine Lab Created Diamond Ring stacked with a diamond band on hand
ONE-OF-A-KIND • READY TO SHIP
0.80tcw Old European Diamond Noa Petals Engagement Ring – vintage diamond cluster in 14k yellow gold, by Marrow Fine
 
0.80tcw Old European Diamond Noa Petals Engagement Ring – vintage diamond cluster in 14k yellow gold, by Marrow Fine
ONE-OF-A-KIND • READY TO SHIP