![Marrow Fine Jewelry Black Diamond Cosmic Light Open Shank Band](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0002_MF-0422-051.jpg?v=1705625510&width=3000)
![](http://www.marrowfine.com/cdn/shop/products/MARROW-FINE-JEWELRY-SWEET-MELISSA-STACK_65844e2a-2837-4bf2-9e2d-c22e7071d973.png?v=1708386016&width=1000)
![Marrow Fine Jewelry Black Diamond Cosmic Light Open Shank Band](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0000_MF-0422-052.jpg?v=1708386016&width=3000)
![](http://www.marrowfine.com/cdn/shop/products/MARROW-FINE-SOLID-GOLD-STACKING-RINGS-ENGAGEMENT-RINGS.png?v=1708386016&width=1000)
![](http://www.marrowfine.com/cdn/shop/products/BlackDiamondCosmicLightStackingBandMarrowFine.png?v=1708386016&width=3000)
![](http://www.marrowfine.com/cdn/shop/files/Jill_Product_Page.png?v=1698780215&width=1200)
Jillian’s Notes
"This best-selling style looks stunning with nearly every engagement ring she's been paired with."
Jillian Sassone – Creative Director & Founder
![](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0002_MF-0422-051.jpg?v=1705625510&width=3000)
![](http://www.marrowfine.com/cdn/shop/products/MARROW-FINE-JEWELRY-SWEET-MELISSA-STACK_65844e2a-2837-4bf2-9e2d-c22e7071d973.png?v=1708386016&width=1000)
![](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0000_MF-0422-052.jpg?v=1708386016&width=3000)
![](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0003_MF-0422-051-WG.jpg?v=1708386016&width=3000)
![](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0001_MF-0422-051-RG.jpg?v=1708386016&width=3000)
![](http://www.marrowfine.com/cdn/shop/products/MARROW-FINE-SOLID-GOLD-STACKING-RINGS-ENGAGEMENT-RINGS.png?v=1708386016&width=1000)
![](http://www.marrowfine.com/cdn/shop/products/BlackDiamondCosmicLightStackingBandMarrowFine.png?v=1708386016&width=3000)
Black Diamond Cosmic Light Open Shank Band
Our newest open shank band, the Cosmic Light Open Shank Band features delicate sparkling black diamonds & pairs beautifully with so many different shaped engagement rings & statement pieces.
Stacks best with: all cuts.
Available in 18k gold and platinum. Contact us for pricing.
Drop a hint
Love this piece? Email a little nudge, nudge, hint, hint.
![](http://www.marrowfine.com/cdn/shop/products/BLACKDIAMONDCOSMICLIGHTMARROWFINEJEWELRY_0000s_0002_MF-0422-051_850x850.jpg?v=1705625510)
Black Diamond Cosmic Light Open Shank Band
$1,000
You Might Also Like
Hand-picked. Sustainably sourced.
We take gemstone sourcing very seriously. We work with fully vetted, trusted partners and our own internal QA team to bring you the most sustainable and unique stones.
![](http://www.marrowfine.com/cdn/shop/files/sustainable.jpg?v=1657627865&width=1200)
![](http://www.marrowfine.com/cdn/shop/files/sustainable1.png?v=1657574556&width=620)
Marrow custom
From dream to design, we can’t wait to work our magic and create a completely custom Marrow piece that’s one-of-a-kind.
![custom ring](http://www.marrowfine.com/cdn/shop/files/custom-ring-1_225x.png?v=1647389986)
![custom ring 3](http://www.marrowfine.com/cdn/shop/files/custom-ring-2_225x.png?v=1647389986)
![custom ring 2](http://www.marrowfine.com/cdn/shop/files/custom-ring-3_225x.png?v=1647389986)
![custom ring](http://www.marrowfine.com/cdn/shop/files/custom-ring-1_225x.png?v=1647389986)
![custom ring](http://www.marrowfine.com/cdn/shop/files/custom-ring-1_225x.png?v=1647389986)
![custom ring 3](http://www.marrowfine.com/cdn/shop/files/custom-ring-2_225x.png?v=1647389986)
![custom ring 3](http://www.marrowfine.com/cdn/shop/files/custom-ring-2_225x.png?v=1647389986)
![custom ring 2](http://www.marrowfine.com/cdn/shop/files/custom-ring-3_225x.png?v=1647389986)
![custom ring 2](http://www.marrowfine.com/cdn/shop/files/custom-ring-3_225x.png?v=1647389986)
Weeks 1-2
Let's chat and ideate.
Weeks 2-4
From dream to design
Weeks 4-8
Make magic & celebrate
![](http://www.marrowfine.com/cdn/shop/t/123/assets/pdp-custom-prism.png?v=23431685224128093221711041728)