Maybe the FourSevens Maelstrom MM-X? The flood is floody and the hotspot is a touch larger and brighter, but the XPG2 gives up about 60 lumens for a tighter hotspot and less flood. Can I assume that your numbers are at the emitter and not out-the-front values? If so, the XPG2 version might fit the bill. The Quark Turbo would throw a bit further, though I don't like how the head diameter is disproportionate to the body. It's still no wider than the Maelstrom at the head but still...
If you're looking for 500-600 lumens out the front, I'm afraid that will be difficult to pull off with your criteria. A lower power XPE emitter is usually required for good throw in a small package. If not, a larger or deeper reflector is required to focus the beam. The closest I've seen was an Oveready custom-made modification of a Surefire C2 using an SST-50 emitter housed in a modified M2 head to give it a deeper reflector to focus the beam. The setup was run on a single 18650 cell with extreme low resistance mods finely tuned so it would pump enough power to get about 1000 lumens OTF.
Still, I guess it depends on how far you need it to go and the amount of ambient lighting. You could try to brute force the throw with a very powerful emitter. I used a P60 drop-in with an SST-90 emitter direct drive with a single 18650 IMR cell and was able to light up dark areas away from street lighting within 1 block while standing 23 floors above ground level.
But IMO, your best bet is the Maelstrom using the XPG2 emitter. The Quark Turbo doesn't look like it would slide into your pocket gracefully given the difference in diameter between the body and head. And the Maelstrom still has a pocket clip, so we know it's pocket sized at least. I would recommend the wider 18650 cell VS RCR123s for longer runtime.