Flatback Rhinestones – Siam 5ss – MAXIMA Crystals by Preciosa®

Enhance your designs with rich, deep red sparkle using 5ss MAXIMA Flatback Rhinestones by Preciosa® in Siam. These 1.8mm crystals offer a classic ruby tone in a micro size—ideal for nail art, jewelry details, and intricate embellishments that require precision and brilliance.

Why You’ll Love Them

• Color: Siam – deep, ruby red with timeless elegance and intense clarity
• Size: 5ss (approx. 1.8mm) – perfect for micro detailing, small accents, and subtle sparkle
• Flatback design works with professional adhesives on fabric, plastic, and metal
• MAXIMA precision cut ensures sharp facets and exceptional brilliance
• Lead-free and responsibly made in the Czech Republic

Packaging Options

• Best Value: 10 Gross Pack (1440 pieces)
• Also Available: 3 Packs of 180 pieces (540 pieces total)
• Single Pack: 180 pieces

If you're looking for more alternatives, consider Siam Red 05ss 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