Ornate Amethyst Quilen

There are 2 tameable creatures with this look.

Ornate Amethyst Quilen
Exotic family: Beast Masters only, minimum level 39.Exotic Family
Can only be used by hunters in the Beast Mastery spec. Minimum level 39 in Shadowlands.
Stone HoundsLevelLocation
Can Be Tamed
39(NPC Level:

Vale of Eternal Blossoms
Retains its original name after taming.
See this video for tracking information.
Can Be Tamed
BossMogu'shan Vaults (Raid)
One of The Stone Guard bosses. In 10-player mode only three of the four possible guardians will be present in a given week.
Level scaling: In Shadowlands most NPCs will scale with the Hunter's level, within the constraints of their level range. Hunters can tame regular NPCs up to 2 levels higher than them, but can only tame elite NPCs of the hunter's level or below.