UPDATE 1-German spectacles retailer Mister Spex prices IPO at 25 euros/share

(Adds final pricing)

FRANKFURT, June 30 (Reuters) - German online spectacles retailer Mister Spex has priced its initial public offering at 25 euros ($29.72) a share, the midpoint of its 23-27 euro marketing range, it said on Wednesday.

The flotation, which values the company at 829 million euros, will reap proceeds of 245 million euros for Mister Spex, earmarked to ramp up its growth strategy, expand internationally and repay a bridge loan facility. The total offer volume stands at 375 million euros, including an overallotment option.

Spectacles maker EssilorLuxottica has agreed to buy shares worth 50 million euros as a so-called cornerstone investor, while investment firms Janus Henderson and M&G Investments are buying shares worth 30 million each.

Mister Spex is owned by co-founders Dirk Graber and Mirko Casper, along with investors including Goldman Sachs, DN Capital, Scottish Equity Partners and XAnge.

The company, which in 2020 posted a loss of 10.3 million euros on sales of 164 million, is slated to start trading on the Frankfurt Stock Exchange on July 2. ($1 = 0.8412 euros) (Reporting by Arno Schuetze Editing by Madeline Chambers and Jane Merriman)