It's been a great couple of days for the London stock market, with both the FTSE 100 and FTSE 250 hitting fresh highs. Yet, despite their strength, the FTSE 100 and FTSE 250 continue to offer up quality companies at bargain prices. Fallen angelKey numbers: price-to-earnings (P/E) ratio 8.6 timesInvestec's (LSE:INVP) share price is up 17% in the year to date. That's more than double what the broader FTSE 100 and FTSE 250 indexes have achieved. A FTSE 250 dividend heroKey numbers: dividend yield 9.7%The Renewables Infrastructure Group's (LSE:TRIG) operations won't ever be described as 'sexy.'