K9 Crystal Flatback Raindrop – Black Diamond, 6×2mm

The elongated raindrop shape adds direction and refined movement to nail art. Its narrow 6×2mm proportions make it ideal for detailed crystal compositions, fine lines, leaves, petals, feather effects and jewellery-inspired accents.

Black Diamond is a versatile neutral shade that looks luxurious on both light and dark nail bases. It is perfect for elegant everyday manicures, dark glamour designs, winter nail art, gothic details and sophisticated crystal clusters.

Product details

• Product: K9 Crystal Flatback Raindrop – Black Diamond.
• Size: 6×2mm.
• Shape: Slim raindrop, elongated teardrop or tapered oval.
• Colour: Black Diamond.
• Main appearance: Smoky dark grey with silver, graphite and subtle champagne-toned reflections.
• Material: K9 crystal.
• Type: Flatback nail-art decoration.
• Finish: Faceted, shiny, reflective and decorative.
• Back: Flatback for nail-art application.
• Recommended use: Elegant nail art, dark glamour manicures, crystal compositions, winter designs, gothic accents, geometric details and refined salon nail art.
• Application: Use with rhinestone gel, Glue Gel, builder gel, nail glue or another suitable nail-art adhesive.

The 6×2mm size creates a fine, elongated crystal detail. The narrow silhouette is perfect for adding a subtle directional accent without taking up too much space on the nail.

The Black Diamond shade appears primarily smoky grey, but the facets can reveal different reflections under changing light. Depending on the angle, the stones may show deep charcoal, soft silver, graphite, black and muted champagne-like tones.

Suitable nail styles

The 6×2mm K9 Crystal Flatback Raindrop works beautifully on short, medium and long nails. Its slim shape is suitable for almond, oval, square, coffin, ballerina and stiletto nail shapes.

It is ideal for elegant manicures, black-and-silver designs, gothic nail art, winter looks, smoky crystal compositions, party nails, minimalist accents and detailed salon work.

Use the stones individually for delicate sparkle, place them in pairs for symmetrical details or arrange several stones into leaves, petals, wings, starbursts and crystal trails.

Colour combinations

Black Diamond raindrops look especially beautiful on black, charcoal grey, silver, white, milky white, nude, taupe, beige, burgundy, deep red, navy, dark green and purple nail bases.

On black or charcoal nails, the stones create a refined tone-on-tone smoky effect. On white, milky white or nude bases, they create a sophisticated high-contrast detail. On burgundy or deep red nails, the muted silver and graphite reflections add a luxurious evening look.

Pair them with Jet, Silver Night, Hematite, Crystal, Crystal AB, Black Diamond, white pearls, silver foil, silver chrome, black glitter and metallic nail-art decorations.

The special beauty of Black Diamond raindrops

The main attraction of these stones is the balance between their dark smoky tone and their bright faceted reflections. Black Diamond is not a flat black shade; its cut surface reflects silver, graphite and muted warm tones, giving the crystals depth and a jewellery-like appearance.

The elongated raindrop shape adds a graceful, flowing line to nail art. It can resemble a leaf, feather, petal, wing or delicate crystal flame, depending on how it is placed.

Its understated neutral colour makes it easy to combine with both minimal and elaborate manicure designs.

How to apply and remove

• Prepare the nail and complete the base colour or nail art. Choose the desired placement and direction of the raindrop shape before applying adhesive.
• Apply a small amount of rhinestone gel, Glue Gel, builder gel, nail glue or another suitable adhesive to the intended area. Pick up the 6×2mm raindrop with tweezers, a wax pencil or a rhinestone picker and place it carefully onto the adhesive.
• For a lengthening effect, position the stone vertically with the pointed end facing toward the cuticle or free edge. For a leaf or petal arrangement, group multiple raindrops around a round rhinestone, pearl or nail charm.
• Cure under a UV/LED lamp according to the adhesive manufacturer’s instructions when using gel-based products. For extra durability, secure the base and outer edges with a small amount of clear gel or Glue Gel.
• Avoid covering the faceted top surface completely, as this can reduce the Black Diamond colour depth and reflective sparkle. To remove, carefully file or soften the adhesive, then lift the stone gently. Do not pull it forcefully from the natural nail.

Styling ideas

• Place one Black Diamond raindrop vertically on a nude or milky-white accent nail for a slim elegant statement.
• Create a dark crystal flower by arranging several raindrops around a Jet or Black Diamond centre stone.
• Use mirrored pairs beside a pearl, charm or central rhinestone to create wings or a bow-inspired detail.
• Combine the stones with black polish, silver chrome and Jet rhinestones for a dramatic gothic manicure.
• Pair them with burgundy, deep red and gold details for an elegant festive or evening design.
• Use Black Diamond raindrops alongside Crystal and Crystal AB stones for a refined high-contrast crystal composition.
• Create a smoky winter manicure with silver foil, charcoal polish, white pearls and subtle glitter.

Choose K9 Crystal Flatback Raindrop – Black Diamond, 6×2mm if you are looking for a slim, faceted dark-grey crystal with refined silver and graphite reflections. Its elegant raindrop silhouette is ideal for sophisticated, gothic, winter, smoky and jewellery-inspired nail-art designs.