These are Preciosa Viva Rosemontee sew-on stones in Black Diamond — 4mm transparent crystal set in brass, sold in a pack of 144. The foiled brass setting bounces light back through the smoky crystal, giving you that signature dark sparkle without any glue required.

Black Diamond reads as a cool, smoky grey-black — transparent enough to let light pass through and catch, but deep enough to anchor a dark or neutral palette with real visual weight.

Specifications

• Size: 4mm
• Color: Viva Rosemontee Black Diamond (transparent)
• Finish: Transparent
• Material: Glass Crystal in Brass Setting, made in Bohemia, Czechia
• Quantity: 144 Pieces

What to make with them

Sew them onto velvet, denim, or leather for structured embellishment on garments and accessories. They're also well-suited to theatrical costume work, bookbinding accents, or scattered across a resin piece where you want a gothic, light-catching detail.