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These 1.9mm – 2.1mm hotfix crystals from Preciosa® skip the metallic foil backing so light passes straight through the stone — the right choice for sheer fabric, mesh, and any design where a traditional foiled backing would show through. MAXIMA is Preciosa's premium rhinestone line, precision-cut in Europe for maximum brilliance and consistency.
Best for: sheer and mesh costumes, organza, tulle overlays, skating dresses, dance bodices with see-through panels, and any project where a foil-free, translucent look is needed.
Why You'll Love Them
- Crystal Unfoiled finish: No metallic backing, so the stone stays transparent from behind
- 6ss (1.9mm – 2.1mm) size ideal for fine detail work, outlines, and nail art
- Hotfix backing: Heat-activated adhesive for fast, clean application to fabric
- MAXIMA quality: Preciosa's premium European crystal line, precision-cut for maximum light return
- Consistent stones: Uniform sizing and shape in every pack, so no culling required
Size Reference
6ss rhinestones measure approximately 1.9mm – 2.1mm. This extra-small size is best for fine detail work, intricate patterns, nail art, and designs where small stones fill tight spaces or trace fine outlines. For see our rhinestone size chart with ss, mm, and inches.
Packaging Options
- Available: 10 gross (1,440 pieces)
Crystal Size Reference Guide
| Stone Size (ss) | Size (mm) | Common Name | Best Use |
|---|---|---|---|
| 5ss | 1.7mm – 1.9mm | Extra Small | Fine detail, nail art |
| 7ss | 2.1mm – 2.3mm | Extra Small | Fine detail, nail art |
| 9ss | 2.5mm – 2.7mm | Small | Outlines, accents |
| 12ss | 3.0mm – 3.2mm | Small | Outlines, accents |
| 16ss | 3.8mm – 4.0mm | Mid-Sized | General coverage |
| 20ss | 4.6mm – 4.8mm | Most Popular | Dance and costume use |
| 30ss | 6.3mm – 6.5mm | Large | Bold accents |
| 34ss | 7.0mm – 7.3mm | Extra Large | Statement pieces |
| 40ss | 8.4mm – 8.7mm | Oversized | Maximum sparkle and drama |
| 48ss | 10.9mm – 11.3mm | Oversized | Maximum sparkle and drama |
Frequently Asked Questions
What does Crystal Unfoiled mean?
Crystal Unfoiled rhinestones have no metallic foil on the back of the stone. Standard rhinestones use a foil backing to reflect light forward. Unfoiled stones stay transparent, so light passes through rather than bouncing back. This makes them the right choice for sheer fabric, mesh, and see-through panels where a foil backing would be visible.
When should I use unfoiled instead of foiled rhinestones?
Use unfoiled rhinestones when the back of the stone will be visible — on organza, tulle, mesh, or any translucent fabric. Foiled rhinestones are better for opaque fabric where maximum light reflection is the goal.
What is 6ss in millimeters?
6ss rhinestones measure approximately 1.9mm – 2.1mm. They are one of the smaller flatback sizes, best for fine detail work, tight outlines, nail art, and intricate patterns where larger stones would not fit.
Browse our full Crystal color collection or shop all MAXIMA Crystals by Preciosa hotfix rhinestones.
