Hotfix 20ss Black Diamond Shimmer AB – MAXIMA Crystals by Preciosa®

These 20ss (4.6mm) MAXIMA Hotfix Crystals by Preciosa® in Black Diamond Shimmer AB are smoky, sophisticated, and shimmering with multi-tonal brilliance. The rich gray tone of Black Diamond is enhanced by the ethereal Shimmer AB coating—creating a subtle but captivating play of light. With a heat-activated glue backing, these hotfix rhinestones offer long-lasting sparkle for garments, costumes, and apparel that demand both beauty and performance.

Why You'll Love Them

• Color: Black Diamond (Elegant Cool Gray)
• Effect: Shimmer AB – soft, light-reactive iridescence
• Size: 20ss (4.6mm) – our most popular hotfix rhinestone size
• Hotfix backing for easy, professional heat-set application
• Precision-cut for superior light refraction and clarity
• Made in the Czech Republic by Preciosa®

Packaging Options

• Best Value: 10 Gross Pack (1,440 pieces)
• Also Available: 1 Gross Pack (144 pieces)

What is Shimmer AB?

Shimmer AB is Preciosa’s refined take on the traditional Aurora Borealis coating. This effect offers a softer, more translucent finish that enhances the depth and tone of the base crystal color—producing a luminous glow that shifts with the light. Ideal for subtle sparkle that still catches every eye.

What is a Hotfix Rhinestone?

Hotfix rhinestones come with a heat-activated adhesive on the back, designed to bond securely to fabric when applied with a heat press, wand, or iron. This method is preferred by professionals for its durability, clean application, and reliable hold through movement and wash cycles.

About MAXIMA Crystal by Preciosa

MAXIMA is Preciosa’s highest-quality line of flatback rhinestones, crafted with eco-conscious production and centuries of Bohemian crystal expertise. Known for unmatched sparkle, consistent sizing, and reliable performance, MAXIMA Hotfix crystals meet the needs of professional designers and DIY creators alike.

Looking for a more budget-friendly option? Check out our LUX Austrian Crystal Collection inspired by Viva12.

Preciosa® has been setting the standard in crystal manufacturing since the 16th century. As an Authorized Preciosa Partner, Rhinestones Unlimited is proud to bring you authentic MAXIMA Hotfix crystals trusted by top performers, studios, and costume houses worldwide.

Why Choose MAXIMA Hotfix?

• Premium heat-set glue backing for fabric applications
• Precision facets for superior brilliance and sparkle
• Durable silver foil backing for high reflection
• Certified ecological and ethical crystal production
• Ideal for garments, uniforms, dancewear, and logos
• Official brand-use available for resale and product integration

Crystal Size Reference Guide

Use the chart below to choose the right rhinestone size for your next project. This guide lists sizes in both "ss" and millimeters with suggested uses.