This grower is sure of this plant identification.
Small brown glazed terracotta bowl, 4 in diameter, containing four different species of Lithops. There are very unusual leaf succulents native to the arid regions of Southern Africa. The bowl in the image posted contains Lithops lesliei "Albinica", Lithops fulviceps lydiae, Lithops karasmontana and Lithops bromfieldii var mennellii.
Living stones, Stone plant
Lithops lesliei var. albinica (Living stones). This perennial succulent is egg-shaped and is divided into two unequal-sized leaves which are dark green with yellow marks. In late summer or early autumn, a single white flower is borne.
These frost-tender succulents are easy to grow but require very dry conditions, so need to be kept under shelter in all but arid climates. Plant in coarse, gritty soil and allow full sun. Water only in spring.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record