Bodo Hofstetter. Letter to Katharine Baetjer. June 19, 1995, calls it certainly not by Laurent, but of the period.
Graham Reynolds with the assistance of Katharine Baetjer. European Miniatures in The Metropolitan Museum of Art. Exh. cat., The Metropolitan Museum of Art. New York, 1996, pp. 10, 113–14, 150, no. 91, colorpl. 91 and ill. p. 113, state that the attribution to Laurent "seems to be borne out by comparing this miniature with that of a young man carving his initials on a tree, signed with Laurent's initial and dated 1791" (Bléhaut collection, Bourg-Argental).
Nathalie Lemoine-Bouchard. Letter to Katharine Baetjer. November 24, 2003, rejects the attribution to Laurent, but suggests it is by Mortier, who made a pendant.