Black Tourmaline & Herkimer Diamond Adjustable Ring – #925 Sterling Silver

This adjustable ring is crafted from #925 sterling silver and features a striking combination of Black Tourmaline and Herkimer Diamond. The deep black tones of Tourmaline contrast beautifully with the clear, naturally faceted Herkimer crystal, creating a bold and unique design.

Key Features

#925 sterling silver
Black Tourmaline & Herkimer Diamond
Adjustable ring size

Formation

Black Tourmaline forms in igneous and metamorphic environments, developing its deep black color from iron content. Herkimer Diamonds are double-terminated quartz crystals formed in sedimentary environments, known for their natural clarity and geometric shape.

Product Details

Stones: Black Tourmaline & Herkimer Diamond (Quartz)
Metal: #925 Sterling Silver
Type: Adjustable ring

Due to natural stone and craftsmanship, each piece will vary slightly in shape, clarity, and overall appearance.

Mineral Information

Mineral Family: Silicate / Quartz
Chemical Formula: Complex boron silicate / SiO₂
Crystal System: Trigonal
Mohs Hardness: 7 – 7.5