Nellis Lab Knows there are Thousands of GemStone, not just 60+, Gold can be Viewed as Gravel.

24k Gold is 2,5 by Mohs' Hardness, 14k is Slightly Over 3 by Mohs'.

That is a Weak 24k Yellow Gold I Refined mySelf from 8k (Im done with that, it is not Safe).

(Pro Gold Refining, Top Rated by EV ... Safe Link: UniteDPMR.com)

Eternal Vanity has a 20 year Jump Start On the Internet, not Many things an say that. 

Freemason Lab, Nellis (Las Vegas, NV) Eternal Vanity.

Look what I Paid for at a Trusted Store Sold as 14k Solid Gold (Yellow & White), the last Pic is EV Gold ...