CG 125 is a locally manufactured machine while GD 110 has been manufactured abroad (probably China or Thailand). Even if GD has been manufactured in China it complies with the Suzuki Int'l quality standards (just like the top-notch cell phones which are manufactured in China but carry the quality standards of their respective manufacturers).
A very important downside to GD is its fuel economy. My GD hardly does 40 - 45 km/L. So if fuel economy is your concern, don't go for it. However, if you want a good quality product and enjoy a smooth ride, GD is your pick.
Please feel free to ask as many questions as you like, you will get first hand experiences from GD users here. Plus, you can scroll this thread right from the start to get to know the pros and cons of this bike.