This deal has ended.
Smart Bargains is taking an extra 20% off diamonds through 2/3. Combine that with a 12% off for new customers coupon and you can find some amazing deals (returnees can get free shipping with $75 - both expire 2/4). Prices are starting as low as $99.99, and that's before discount. Shipping is $9.95 with no sales tax (except MA, NC, KY, CO).