Crystal Lighting

Crystal doesn't transmit light — it splits it. That's the entire difference between a crystal fixture and a glass one. A cut facet bends light at an angle that depends on wavelength, which separates white light into visible spectrum and throws it across a ceiling as moving points of colour. No diffuser can imitate it.

What actually determines the sparkle

The cut, more than the material. A precisely faceted piece with sharp edges splits light cleanly. A moulded piece with soft, rounded edges just glows. Comparing two fixtures at similar prices, look at facet sharpness in the product photos — that's where the money went or didn't.

Refractive index is the technical measure. Higher index means more pronounced bending and more colour separation:

Optical crystal — highest index, strongest prism effect, most expensive.
K9 crystal — the practical middle ground, and what most fixtures in this range use.
Pressed glass — entry level. Attractive, noticeably less sparkle.

The bulb decides half of it

This is the most common and most fixable mistake in the category.

Crystal needs a point source to refract properly. A clear candelabra bulb with a visible filament gives you sharp, defined sparkle. A frosted or opal bulb diffuses the light before it ever reaches the crystal, and the whole effect disappears — the fixture just glows.

Use clear E12 candelabra bulbs at 2700K. Warm and clear. It's a fifteen-dollar decision that determines whether the fixture looks like what you paid for.

Frame finish changes the character

Chrome and polished nickel read cool and formal — the traditional pairing.
Brass and gold warm the crystal considerably and read more contemporary. Under 2700K bulbs on a February evening, a brass-framed crystal fixture is a much softer object than a chrome one.
Matte black with crystal is the modern combination — the contrast makes the crystal read brighter.

Cleaning, properly

Crystal dulls with dust and cooking film, and a dull crystal fixture loses most of its point.

Breaker off, bulbs cool. Wipe each piece with a microfibre cloth lightly dampened in one part isopropyl alcohol to four parts distilled water. Distilled matters — tap water leaves mineral spots as it dries. Don't spray the fixture directly; liquid running into the sockets is how a cleaning becomes a repair.

Twice a year in a dining room, more if it's near a kitchen.

From a Canadian company that thinks a fixture should earn its place.

Frequently asked questions

What bulbs should I use in a crystal fixture?

Clear E12 candelabra bulbs at 2700K. Frosted or opal bulbs diffuse light before it reaches the crystal and eliminate the sparkle entirely.

What's the difference between optical crystal, K9 and glass?

Refractive index. Optical crystal bends light most and separates colour most strongly, K9 is the practical middle ground, pressed glass is entry level with noticeably less sparkle.

How do I clean crystal?

Breaker off, bulbs cool, microfibre cloth dampened with one part isopropyl alcohol to four parts distilled water. Never spray the fixture directly.

Chrome or brass frame?

Chrome and nickel read cool and formal. Brass and gold warm the crystal noticeably and read more contemporary. Matte black makes the crystal look brighter by contrast.

Why does my crystal chandelier look flat?

Nine times out of ten it's the bulb. A frosted bulb pre-diffuses the light and the crystal has nothing to split.