The best replacement for topaz is citrine.

The best alternatives to topaz are rated as following:
★★★★★  citrine
★★★★  sapphire
★★★★  aquamarine
★★★  nik
★  opal
★  onone
★  amethyst
★  yellow sapphire
★  tanzanite
★  cubic zirconia
★  perfect photo suite
★  sapphire which is more expensive
  pink sapphire
  white sapphire
  citrine november
  citrine birthstone
  blue sapphire
  smokey quartz
  blue zircon
  ruby
  noise ninja
  nik software
  photomatix
  london blue topaz
  zircon
  turquoise
  smoky quartz

Your alternative for topaz is not listed? Suggest!
Speaking about topaz, one probably shouldn't forget about prp.

Other search terms related to topaz and their ratings are:
★★★★★ prp
★★ chocolate diamonds
★★ opal
★ opal ring
blue sapphire
You have in mind a companion for topaz and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of topaz in all years. Click on graph for more.
topaz
citrine
sapphire