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

These 20ss (4.6mm) MAXIMA Flatback Crystals by Preciosa® in Black Diamond Shimmer AB combine the smoky sophistication of black diamond with the ethereal brilliance of the Shimmer AB effect. A perfect mid-to-large size for standout sparkle, these rhinestones are ideal for detailed applications on costumes, accessories, beauty looks, and DIY projects. The non-hotfix flatback makes them versatile and easy to glue to a variety of surfaces.

Why You'll Love Them

• Color: Black Diamond – a cool, elegant gray
• Effect: Shimmer AB – lighter than traditional AB, offers refined color-shifting glow
• Size: 20ss (4.6mm) – our most popular size for high-impact visibility
• Flatback, non-hotfix – perfect for gluing on nearly any surface
• Authentic European crystal made 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 lighter Aurora Borealis coating, inspired by Swarovski’s Shimmer effect. It adds a delicate iridescence to the crystal’s surface while allowing the true base color to shine through. On darker tones like Black Diamond, the result is a mysterious, glowing finish that shifts in the light without appearing overly flashy.

About MAXIMA Crystal by Preciosa

MAXIMA is Preciosa’s most premium line of flatback crystals, crafted in the Crystal Valley of Bohemia. Featuring high-precision cutting, consistent sizing, and brilliant shine, MAXIMA rhinestones meet the highest global standards for quality and sustainability.

Searching for a lower-cost alternative? Visit our LUX Austrian Crystal Flatback Rhinestones Black Diamond 20ss for comparable brilliance at a more economical price.

Rhinestones Unlimited is proud to be an Authorized Preciosa Partner, committed to supporting small businesses, designers, performers, and creatives with ethically sourced, top-tier European crystal.

Why Choose MAXIMA Crystals?

• Advanced optical brilliance through precision-cut facets
• High-durability foil backing for secure, long-lasting adhesion
• Ecologically certified and ethically manufactured in Europe
• Preferred by professionals in dance, fashion, and beauty
• Use of MAXIMA branding approved for finished product promotion

Crystal Size Reference Guide

Use this size chart to see how 20ss compares with other options when planning your layout for coverage, visibility, and design balance.