"A Jet Ring Sent" and "The Triple Fool" are both love poems by John Donne. More specifically, they are poems about the pains of unrequited love. Neither is addressed to the beloved, and, in fact, we learn very little about her in either poem.

In "A Jet Ring Sent," the poet apostrophizes the ring itself, comparing its blackness and brittleness to his heart and hers. It seems merely a matter of courtesy, however, to say that his is the black heart and hers the brittle one, since the poem suggests the reverse. The final stanza makes the point that the ring is safer with the poet than with a woman whose carelessness may extend to breaking it.

"The Triple Fool" contains even less trace of the beloved, who is only mentioned glancingly. Instead, it is all about the poet. The conceit here is more elaborate than in "A Jet Ring Sent." The poet is feeling a fool twice over: once for loving and once for complaining about it. He thought grief could be tamed by writing about it, but in fact, this only leads to his poems being turned into songs, which plague him. This is not only a more elaborate but a more public poem, slyly boasting about the renown and effectiveness of his own poetry. "A Jet Ring Sent," though it winds around its central conceit, is more straightforward in both language and sentiments.