Pendant glare on quartz is a geometry problem, not a fixture problem. The short version of how to stop pendant glare bouncing off a quartz counter: sit down at the counter, find the bright spot on the stone, then move the pendant or change the bulb until that spot slides out of your eye line. An opaque metal dome that aims light down does most of the work before you touch anything, which is why the Houseland soft dome pendant uses a 9.8 in or 11.8 in metal shade on an adjustable cord instead of an open glass globe.

Why is my pendant light reflecting off my quartz countertop?
Because a polished quartz slab is a weak mirror, and you are looking at the bulb in it. The reflected spot is not fixed to the counter. It sits at the point on the stone roughly halfway between the bulb and your eye, so it moves the instant either one moves. Stand at the sink and the spot sits near the pendant's footprint. Drop onto a bar stool and it slides several inches toward you, straight into the plate of toast.
That is why two people at the same 6 ft island disagree about whether there is glare. One is standing, one is seated, and the geometry is different for each of them. It is the same effect that puts a ceiling fixture in the middle of a screen, which is worth reading about if you also work at the island, in why there is glare on your monitor from the ceiling light. The counter is just a bigger, harder mirror than a display.
The practical consequence: you cannot judge this from the doorway. Every check below happens from a seat.

How do you stop pendant glare bouncing off a quartz counter?
Work through these in order and stop when the spot leaves your eye line. Most kitchens are done by step three.
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Sit in the seat you actually use. Not the end stool nobody sits on. Standing and sitting are two different eye heights and glare follows the eye: at a standard 36 in [91 cm] counter a seated eye lands around 48 to 52 in [122 to 132 cm] off the floor while a standing one sits near 62 in [157 cm], and that 10 in [25 cm] swing is enough to walk the spot clear across the
Does a frosted or a clear bulb cause more glare on quartz?
A clear bulb glares far more, and a filament bulb is the worst of all. A visible filament concentrates its output into thin bright lines, and polished quartz copies those lines back as hard streaks. Frosted glass spreads the same output across the whole bulb surface, so the stone returns a soft patch instead of a point. Because this pendant uses a standard E27 screw base rather than a built-in LED, the bulb is yours to pick, and you can try both for the cost of two bulbs.
What you screw into the E27 socket What the quartz gives back Use it when Clear bulb, visible filament A hard point or streaks of light, readable from a seat Nobody eats at the counter and you want the sparkle Frosted or opal bulb A wide, soft patch with no defined edge Polished stone, and people sit at it daily Any bulb sitting fully up inside the metal dome The lit counter, not the source Always, on an island where people face each other One detail people miss: if the glass drops below the metal rim, the shade is not shielding anything. A long tubular filament bulb can poke out of a dome that a compact frosted globe sits neatly inside.

PicturedSoft Dome E27 Pendant Light for Kitchen Island, Metal Shade, 7 Colors.See 2 shade sizes & current price How high should a pendant hang so you stop seeing the bulb in the counter?
Start with 30 to 36 in [76 to 91 cm] of air between the quartz and the bottom of the shade, then move from that mark. That band is a starting point, not the answer, because the answer is set by your seated eye height and your ceiling, not by the fixture, and anyone quoting one figure for every kitchen is guessing. Here is the check that works: sit down, have someone raise and lower the pendant an inch at a time, and call stop when the bulb disappears behind the metal rim and the bright spot leaves your plate. Mark the cord, then set the other pendants to match.
Two things bias that number. A tall person on a low stool sees more of the bulb than a shorter person standing. And a wide shade shields from a shallower angle than a narrow one, so an 11.8 in dome buys you a little more freedom in height than a 9.8 in dome does. For the framing on height ranges and ceiling heights, our piece on how high a pendant light should hang above a kitchen island covers it in more depth than this article should.
Should a pendant center on the sink or on the window?
Center on the surface, never on the window. If the sink is in the island, center the pendant on the basin, because that is where hands and eyes go. If the counter is a working run with no sink, center on the counter's own long axis. A window is a bad reference for two reasons: it is rarely centered on the counter below it, and after dark it becomes a second mirror that shows the whole fixture back at you.
The same angle logic applies to any reflective plane you are lighting near, which is why the reasoning in what angle to light a painting without glare on the glass transfers directly to a quartz slab. Move the source out of the mirrored path, do not fight it with brightness.
One more common error: centering on the room. An island is often offset from the room's center by a few inches, and following the room drops the light onto the slab's edge, which is the worst place for it. The edge is polished, close to the seated eye, and angled just right to send the reflection into a face.
Does a 9.8 in or an 11.8 in shade throw more glare on the counter?
The wider shade glares less, because more of the dome sits between the bulb and your eye. Choose 9.8 in (25 cm) for clusters of three, narrow bars, small kitchens and low ceilings. Choose 11.8 in (30 cm) when one or two pendants have to cover a wide island or a dining table and you want more visual weight. On a typical 6 ft island that means two 11.8 in shades or three 9.8 in shades; on an 8 ft island, three 9.8 in shades keep the span from crowding, or two 11.8 in shades give a quieter line.
Count matters as much as diameter. Three domes on a 6 ft island put three reflections on the stone instead of two, each one dimmer, and for some people three soft spots read as less irritating than two bright ones. The Houseland pendant comes in both diameters and 7 colors, so the decision is about span and sight lines rather than availability. If you are still working out the count, pendant light spacing over a kitchen island handles the arithmetic.

PicturedSoft Dome E27 Pendant Light for Kitchen Island, Metal Shade, 7 Colors.See 2 shade sizes & current price 
From the shop
Soft Dome E27 Pendant Light for Kitchen Island, Metal Shade, 7 Colors
The metal shade aims light down instead of out, and the E27 socket is not tied to a built-in LED, so you can fit a frosted bulb, set your own brightness and warmth, and replace the bulb rather than the fixture. Pick 9.8 in for three pendants on a 6 ft island, or 11.8 in when two have to cover it.
View the soft dome pendant light — 2 shade sizes & current priceDo polished and honed quartz reflect light differently?
Yes, and the finish decides how much work you have to do. Check yours in two seconds: look at a window or a lamp in the surface from a low angle. Get your eye about 12 in [30 cm] above the slab and pick a lamp 8 to 10 ft [2.4 to 3 m] away, because a shallow angle is the only one that shows the difference. Polished quartz gives a crisp reflection with a readable edge, so you can almost make out the shape of the bulb, and it holds that reflection to roughly the size of the bulb itself, 2 to 3 in [5 to 8 cm] of hard bright stone. Honed or matte quartz gives a dull bloom with no outline, smearing the same light across 10 to 12 in [25 to 30 cm] so it never resolves into a hot spot. Polished is the finish that needs the frosted bulb and the height adjustment. Honed usually needs neither.
Color plays a smaller part than people expect. A white slab looks brighter overall because it returns more diffuse light, but the sharp reflected spot comes from the polish, not the pigment, so a dark polished quartz can produce a more obvious hot spot against its own background. Either way, the fix is the same three levers: shade shape, bulb diffusion, hanging height.
What if the glare is still there after all of that?
Then the pendant is carrying too much of the room, and the answer is another light rather than a different pendant. A single bright source in a dark kitchen produces the highest contrast a quartz counter can show. Add under-cabinet light, a wall light, or anything that lifts the surroundings, and the same reflection stops registering as glare because it is no longer the brightest thing in your field of view.
That is worth knowing before you replace a fixture that is doing its job. An opaque dome on an adjustable cord with a socket you can put any standard bulb into, which is what the Houseland soft dome pendant is, gives you four separate adjustments before you have touched the wiring: height, position, bulb diffusion, and brightness. Work through them from a seat at the counter and most quartz glare is gone in an afternoon.
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