QUOTE(atyt1985 @ Jun 19 2017, 12:06 PM)
Dear Sifus i am planning to get an engagement ring for my gf. My budget is around 4k.
The ring preferably gold. (She dont like white gold).
Please suggest a great diamond and setting for this price. ( 0.3 carat?)
or
A ready made ring that can fits that price
Please suggests also if this price is not possible and i need to fork out extra

I think maybe you should start visit mid valley
At least that's what I do when I start do my survey. I found out Wah Chan got the lowest price offer.
The 4C is what you need to know how it affect the price of diamond. So maybe have a look and compare the real thing first. Then do some research.
Carat > Size
Cut > Proportion of the diamond, mean the cutting that affect how the diamond shine under light
Color > Colorless to yellowish diamond
Clarity > measure of the tiny imperfections
Hope it help, got other sifu sifu here is more pros than me