Right Time to Buy Gold?

I have mentioned in my year end annual review (My Sweet Retirement Annual Review of 2016) that I will be keeping a lookout for gold prices in 2017, hoping to fulfill my dream of owning a gold bar. The chart above shows the price in US dollar for the PAMP Gold Bar – 100g. You can observe from the chart the price of gold has broken down from the parallel uptrend over the period from February 2017 to current July 2017.

The current price of the PAMP Gold Bar -100g is US$3,982.95. There is a 2.98% spread. The price of this gold bar is US$3,713.55 on 20th December 2016.

I am not an expert in investing in precious metal. Can investors advice if it is the right price or time to buy gold now or will it plunge further?