Instructions: Given a text, write a compressed version of it in a single sentence.
Input: Ratners Group PLC, a fast - growing, acquisition - minded London - based jeweler, raised its price for Seattle - based specialty jeweler Weisfield's Inc. to $57.50 a share, or $62.1 million, from $50 a share, or $55 million, after another concern said it would be prepared to outbid Ratners's initial offer. The other concern wasn't identified.
Output:
In an attempt to outbid Ratners's group, London based jeweler Ratners Group PLC raised its price for Seattle based jeweler Weisfield's Inc. to $57.50 (62.1 million dollars) from $50 a share ($55 million dollars) after unfounded concerns surfaced.