These 12ss (3.0mm – 3.2mm) hotfix crystals in bright teal Blue Zircon are from Preciosa VIVA 12® — Preciosa's 12-facet value line, heat-applied for fast, clean embellishment on fabric and costumes. At 12ss, these stones are a go-to size for outlines, accent fills, and costume work where individual stones read clearly without overwhelming the design. For a glue-on option in the same color, shop MAXIMA Crystals by Preciosa® Flatback Blue Zircon 12ss.
Best for: outlines, accent fills, dance and competition costume embellishment, nail art, and any design where a small, vivid teal blue-green needs to read clearly with good individual stone presence.
Why You'll Love Them
- Blue Zircon color: A vivid, bright teal with balanced blue and green tones that reads as jewel-like and luminous under stage and natural lighting
- 12ss (3.0mm – 3.2mm) — a small, versatile size where individual stones read clearly and coverage builds quickly
- Hotfix backing: Heat-activated adhesive for fast, clean application to fabric
- Preciosa VIVA 12® quality: Preciosa's 12-facet value crystal line, precision-cut in the Czech Republic
- Consistent stones: Uniform sizing and shape in every pack, so no culling required
Size Reference
12ss rhinestones measure approximately 3.0mm – 3.2mm — a small size that sits between 10ss and 16ss. At this scale, individual stones are clearly visible and read well in tight groupings, outlines, and accent placements. They are one of the most versatile small sizes for costume work, bridging fine detail and general coverage. For a full breakdown of rhinestone sizes, see our rhinestone size chart with ss, mm, and inches.
Packaging Options
- Best Value: 10 gross (1,440 pieces)
- 1 gross (144 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 color is Blue Zircon in rhinestones?
Blue Zircon is a vivid, bright teal with balanced blue and green tones. It reads as jewel-like and luminous under stage and natural lighting — brighter and more green-forward than Aquamarine, and lighter and more blue-forward than Emerald. It holds its color well at 12ss, making it a reliable choice for outlines and fills where color clarity matters.
How does 12ss compare to other small rhinestone sizes?
12ss measures approximately 3.0mm – 3.2mm — slightly larger than 10ss and noticeably smaller than 16ss. At this size, individual stones read clearly on fabric and skin, making 12ss one of the most useful sizes for costume outlines, tight fills, and accent work that needs to show up under stage lighting without dominating the design.
What is the difference between Preciosa VIVA 12® and MAXIMA Crystals by Preciosa® at 12ss?
Both are genuine Preciosa crystals made in the Czech Republic. MAXIMA is Preciosa's premium line with additional precision cuts for maximum light refraction and a higher price point. Preciosa VIVA 12® is Preciosa's 12-facet value line — reliable sparkle and consistent quality at a more budget-friendly price, making it a strong choice for high-volume projects and dense fills where cost per stone matters.
Can I mix 12ss Blue Zircon hotfix with larger sizes on the same costume?
Yes. Pairing 12ss stones as outline or fill with 20ss or 30ss accent stones in Blue Zircon is a common technique for dimension and visual interest. Because Preciosa VIVA 12® crystals are sorted to consistent size tolerances, Blue Zircon at different sizes will match in color and finish throughout the design.
Browse our full Blue Zircon color collection or shop all Preciosa VIVA 12® hotfix rhinestones.
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