Both have silky soft texture but Lancome Volcano feels more powdery and less smooth than Laura Mercier Sable. The first has similar texture to a typical satin MAC eyeshadow, whereas the latter is buttery smooth like a Urban Decay deluxe eyeshadow.
What I found really disappointing are the mediocre pigmentation and short wearing. Both look awesome on top of Laura Mercier eye basic at first. They fade so quickly that by the time I finish my full face makeup, half of the pigmentation is already gone. The only patch of color that stay put after 8-hour wears is the part layered on top of an eye primer and a creamy base like Bobbi Brown gel liner or Urban Decay 24/7 pencil.
On a more positive note, Laura Mercier and Lancome single eyeshadows are housed in sturdy case that would travel well with you. The first has a mirror for touching up on the go.
Bottom line. Gorgeous wearable color, decent texture and reasonably priced. As much as I love the color and fine shimmer, I wasn't impressed with the longevity and pigmentation. It's a tough call to whether spending time with products that don't completely win my heart. But I decided to review these two eyeshadows anyway since some of you might find their flaws negligible. So check them out! Both are easy to pull off for everyday simple looks.