** Online retailer's shares RBZ.O jump 31.5 pct to $1.42;
set for their best day in two months
** The Singapore-headquartered firm said it teamed up with
Komehyo - an offline pre-owned luxury product boutique in Japan
- to make its products available on RBZ's platform urn:newsml:reuters.com:*:nFWN20T0QC
** Shares set to extend gains to a third session
** Stock down 48 pct this year, has logged yearly losses
since debuting in 2017
(Reporting by Susan Mathew in Bengaluru;)
((Reuters Messaging:
susan.mathew.thomsonreuters.com@reuters.net))