Hotfix Rhinestones – Siam 20ss – MAXIMA Crystals by Preciosa®

Make a luxurious impact with 20ss MAXIMA Hotfix Rhinestones by Preciosa® in Siam. These 4.8mm deep ruby red crystals feature a heat-activated adhesive backing, delivering long-lasting brilliance for dance costumes, uniforms, apparel, and decorative fabric projects.

Why You’ll Love Them

• Color: Siam – bold, regal ruby red with rich saturation
• Size: 20ss (approx. 4.8mm) – ideal for vibrant accents and balanced sparkle
• Hotfix backing activates with heat for secure adhesion to fabric
• MAXIMA precision cut ensures superior brilliance and high-quality consistency
• Lead-free and ethically crafted in the Czech Republic

Packaging Options

• Best Value: 10 Gross Pack (1440 pieces)
• Also Available: 1 Gross Pack (144 pieces)

If you're looking for more alternatives, consider Red Siam 20ss Crystal Collections. 

What is MAXIMA Crystal by Preciosa®?

MAXIMA Crystal by Preciosa® is the highest-quality European branded crystal available today—Preciosa’s most premium line and a top choice for luxury hand-crafted creations. Produced in the historic Crystal Valley of Bohemia, these lead-free crystals represent centuries of artistry, precision cutting, and crystal innovation.

Preciosa is a global leader in crystal manufacturing with a legacy rooted in ethical business practices, artisan support, and sustainable production. As an Authorized Preciosa Partner, Rhinestones Unlimited is proud to supply authentic MAXIMA crystals that reflect brilliance, craftsmanship, and a commitment to supporting creative professionals worldwide.

Why Choose MAXIMA Crystals?

• Meets the highest industry standards for quality and ecological certifications
• Engineered with additional precision cuts for intense brilliance and optical performance
• Superior faceting for unmatched light refraction and sparkle
• Strict quality control ensures consistency in size, shape, and clarity
• Durable silver-backed foiling and reliable hotfix glue for lasting adhesion
• Luxurious packaging that reflects the elevated quality of the crystals inside
• Brand use is available for your products featuring MAXIMA Crystal by Preciosa®

Crystal Size Reference Guide