This deal has ended.
Overstock drops the 14kt Gold 1/4-ct (H-I, I1-I2) Diamond Solitaire Pendant in white or yellow gold from $310.99 to $279.99 through 3/25. Better yet, activate this link to take $12 off and cut it to $267.99. With $2.95 shipping, that is the lowest price we've seen. It is well reviewed with 4.7 out of 5 stars from over 30 buyers, and features a 17" chain and a spring clasp. There is no sales tax (except UT).