On a black jade altar lay Yasmela

The army of Thugra Khotan has been defeated and has fled the battlefield taking Princess Yasmela with his. CONAN finds them both in an ancient ruin.

On a black jade altar lay Yasmela, her naked body gleaming like ivory in the weird light. Her garments lay strewn on the floor, as if ripped from her in brutal haste.

From "Black Colossus"
Page 132. The Complete Chronicles of CONAN.

I've found a few examples of pale women of dark altars... they were probably all "supple" as well, a few more to follow.