Serinity Flatback Crystals

Serinity flatback crystals (also known as Serinity rhinestones) are premium Austrian-made glass crystals with precision-cut faceting and platinum foil-backing, available in hotfix, non-hotfix and sew-on types across over 150 colours, effects and finishes. The range covers sizes SS3 to SS48 for every professional application from nail art and tooth gems through to dancewear, bridal couture and large-scale costume production. Serinity flatback crystals are priced around 10% below leading premium brand pricing, with same or next working day dispatch and no minimum order.

A Bluestreak Crystals Brand

Serinity is our own brand of premium Austrian crystal components, built by Bluestreak Crystals for designers, costume makers and production buyers who need reliable quality, deep range availability and consistent supply. Manufactured in Austria and finished in the United Kingdom, the stones are produced to the same high lead-free standards as the world's leading crystal brands, with consistent brilliance, sizing and colour accuracy across every batch. As the brand's creators, Bluestreak Crystals stocks the most comprehensive Serinity flatback range available anywhere, across all sizes, cuts, types and colours.

Browse the full range by type above, use the Serinity colour chart to find your shade, or buy a sample pack to check colours and finishes in person before ordering.

What Are Serinity Flatback Crystals?

Faceted in Austria using the same cutting infrastructure as the world's leading crystal brands, each Serinity flatback features platinum foiling on the reverse to amplify colour depth and light refraction, and is produced to consistent sizing and colour standards across every batch. The range covers sizes SS3 to SS48, spans three precision-cut designs and is available in over 150 colours, effects and finishes, all lead-free and EU REACH-compliant.

Hotfix, Non Hotfix and Sew-On: Which Type Do You Need?

The Serinity flatback range includes three application types, each suited to different materials and techniques. Choosing the right type before ordering avoids adhesion problems and rework.

Hotfix flatbacks — pre-coated with a heat-activated adhesive for fast, secure application to fabrics and textiles using a hotfix applicator wand, heat press or iron (steam off). Also known as heat-set or iron-on crystals. Ideal for dancewear, costumes, bridal embellishment and fashion garments. Browse Serinity hotfix crystals.
Non hotfix flatbacks — no pre-applied adhesive; bonded using a crystal adhesive. The most versatile option, suitable for glass, metal, plastic, leather, fabric and mixed-media surfaces. Widely used for nail art, glue-on crystal work and accessories. Browse Serinity non hotfix crystals.
Sew-on crystals — pre-drilled for hand-sewing or machine-stitching directly onto garments and textiles, ideal where adhesive alone may not provide sufficient holding strength for high-movement designs. Browse Serinity sew-on crystals.

Crystal Cuts Explained

Serinity flatback rhinestones are available in three cut designs, each engineered to maximise light refraction at their respective size ranges.

8-facet rose cut — used in SS3 and SS4. A clean, classic cut ideal for fine detail work, micro-embellishment and nail art.
14-facet rose cut — used in SS5 to SS10. Optimised for maximum light capture in smaller stone sizes, popular for intricate nail art and close-detail embellishment.
16-facet starburst rose cut — used in SS12 to SS48. The most brilliant cut in the range, delivering high-impact light refraction for fashion embellishment, stage costumes and bridal couture.

Available Sizes: SS3 to SS48

Serinity flatback crystals are sized using the SS (Stone Size) system, covering SS3 (approximately 1.3mm) through to SS48 (approximately 11mm), from ultra-fine micro crystals for nail art to large focal stones for statement embellishment. Each product listing includes both the SS size and millimetre equivalent for easy selection. Commonly ordered sizes include:

SS5 — approximately 1.8mm
SS7 — approximately 2.2mm
SS9 — approximately 2.6mm
SS12 — approximately 3.1mm
SS16 — approximately 3.9mm
SS20 — approximately 4.7mm
SS30 — approximately 6.4mm

What Are Serinity Flatback Crystals Used For?

Serinity flatback crystals are used across professional and creative applications by fashion designers, nail technicians, costume makers and jewellery designers. Their batch-to-batch consistency in sizing, colour and foil quality makes them equally suited to one-off commissions and full production runs.

Fashion and garment embellishment
Dancewear and performance costumes
Bridal and occasion wear
Nail art and beauty
Accessories including bags, shoes and headpieces
Jewellery making and mixed-media craft
Tooth gem application

For coordinated designs, pair Serinity flatbacks with Serinity crystal beads, Serinity chatons and round stones, and our full range of adhesives and application tools.

Why Choose Serinity Flatback Crystals?

Reliable batch consistency, deep range availability and pricing around 10% below the leading premium brand make Serinity the practical choice for production-scale embellishment work. Uniform colour accuracy, SS sizing and foil quality across every order means designers can scale from a single handmade piece to a full production run without managing colour drift or quality variation between batches.

Made in Austria to the same standards as the world's leading crystal brands
Around 10% below leading premium brand pricing
Platinum foil-backed for enhanced colour depth and light refraction
Over 150 colours, effects and finishes including AB, shimmer, metallic and lacquer
Three precision cut designs across the full SS3 to SS48 size range
Standard SS sizing conventions for direct compatibility with established patterns and templates
Lead-free and EU REACH-compliant
Retail and wholesale packs available with no minimum order

Why Buy Serinity from Bluestreak Crystals?

Bluestreak Crystals created the Serinity brand, which means nobody stocks it more comprehensively, holds deeper inventory or understands the range better. Whether you need a single retail pack or regular wholesale quantities, orders are dispatched same or next working day worldwide, with express options to the USA in 2 to 5 days.

We also stock Swarovski flatback crystals (platinum standard), Preciosa flatback crystals (Czech-made) and Estella flatback crystals (budget-friendly) across a range of budgets and brands, all available under one roof. Production buyers and regular wholesale customers can apply for a trade discount for tiered pricing on bulk and repeat orders across the full range.

Frequently Asked Questions

Are Serinity flatback crystals as good as Swarovski? ▾

Yes. Serinity flatback crystals are manufactured in Austria using the same precision cutting and platinum foiling techniques as Swarovski, and match Swarovski's technical specifications for faceting and brilliance. In professional blind comparisons, the two brands are virtually indistinguishable in terms of sparkle. Serinity uses the same 2058 Xilion and 2088 Xirius Rose starburst cut designs and is priced approximately 20–30% lower than equivalent Swarovski products.

Do I need to apply to buy Serinity flatback crystals? ▾

No. Unlike Swarovski, Serinity flatback crystals are available to purchase immediately with no application, approval or brand agreement required. Any individual, designer or business can buy directly through our online store in retail or wholesale quantities, and use or market the crystals without any licensing restrictions.

Who makes Serinity crystals? ▾

Serinity is a brand created and launched by Bluestreak Crystals in January 2022. The crystals are manufactured in Austria using premium precision cutting infrastructure and finished in the United Kingdom. As the brand's creators, Bluestreak Crystals stocks the most comprehensive range of Serinity flatback crystals available anywhere worldwide.

What is the difference between Serinity hotfix and non hotfix flatback crystals? ▾

Serinity hotfix flatback crystals have a heat-activated adhesive pre-applied to the reverse, allowing them to be bonded to most fabrics and textiles using a hotfix applicator, heat press or iron (steam off), also known as iron-on crystals. Non hotfix flatback crystals have no pre-applied adhesive and are bonded using jewellery glue or two-component adhesive, making them suitable for a wider range of surfaces including metal, glass, leather and plastic, as well as fabric and nail applications.

What SS sizes do Serinity flatback crystals come in? ▾

Serinity flatback crystals are available in SS sizes from SS3 (approximately 1.3mm) through to SS48 (approximately 11mm). Common sizes include SS5 (1.8mm), SS10 (2.8mm), SS12 (3.2mm), SS16 (4.0mm), SS20 (4.7mm) and SS30 (6.4mm). Smaller sizes (SS3–SS10) are ideal for nail art and fine detail; mid-sizes (SS12–SS20) suit general garment embellishment; larger sizes (SS30+) are used for statement and focal embellishment.

What glue should I use for Serinity non hotfix flatback crystals? ▾

For fabric applications, a fabric-safe adhesive such as Gem-Tac is recommended, as it holds well through repeated washing. For hard surfaces such as glass, metal or plastic, E6000 or a two-component epoxy adhesive will provide the strongest, longest-lasting bond. For nail art applications, a specialist nail crystal glue is recommended. Browse our full range of adhesives and application tools to find the right product for your surface and application method.

Are Serinity flatback crystals lead-free? ▾

Yes. Serinity flatback crystals are lead-free and fully compliant with EU REACH regulations, making them safe for use in professional production and consumer goods worldwide.

How do Serinity's 2058 Xilion and 2088 Xirius cuts compare to Swarovski technically? ▾

Serinity uses the same cut names and technical specifications as Swarovski. The 2058 Xilion Rose cut features 14 alternating facets and is used for sizes SS5–SS10, optimised for maximum brilliance at a small surface area. The 2088 Xirius Rose cut features 16 facets in a patented starburst arrangement and is used for sizes SS12–SS48, producing the highest possible light refraction at larger stone sizes. Both cuts use platinum foiling on the reverse to amplify colour depth and brilliance — identical in specification to Swarovski's equivalent articles. Serinity also uses the same article reference numbers as Swarovski, meaning sizes and product types translate directly when switching between the two brands.