Chase today began allowing cross-referrals between the Sapphire Reserve and Sapphire Preferred card. Someone with a Sapphire Reserve card can now refer a friend to either the Sapphire Reserve or Sapphire Preferred card. And someone with a Sapphire Preferred card can now refer to either the Sapphire Preferred or Sapphire Reserve card.
Find your referral link for any Chase card on this Chase webpage. Currently the referrer bonus for Sapphire cardholders is 15,000 per referral, up to 75,000 per year. No referrals in the comments below.
Hat tip to ToP
Source: doctorofcredit.com