Hey guys I saw a ring today that was 700 or what the seller claimed was 14ct and I didn't say anything about the mark at the time. Does this exist? I couldn't find much information about it online however what I could find on ebay was online new products that were 16 ct and they were watched that were rose gold which looks very similar to this ring.
14 karat is a popular choice for wedding bands but it is also known as 585 gold as it is 58.5% gold. 700 would mean it's 16.8 karat. So methinks the seller has one the numbers wrong or is a bit dodgy. Does it have a stamp?
Yes the stamp says 700. It is kind of rosey. Looks very real and heavy, completely solid. How accurate are tests other than acid? Thanks mate.
You can get a close estimate using an SG test. If it is red then assume copper, and use a table like this http://www.hauserandmiller.com/reference/melting.html Or a calc like this http://tmtpages.com/specific-gravity.htm I recently used this method to estimate content of an article before purchase - concluded 18k (75%) using SG test. Then took the punt and had item XRF'd after purchase - showed 78% Au.
I find acid ok - but not deadly accurate - I use it as a guide. I am sure very experienced people would do better. xrf - bullet proof as long as you get to the metal ----------- thick coating or rolled gold is a problem if you cannot file. SG is good for small items -------- I found with large bits ------------ I did an sg recently on a nugget that was just under 10 oz - I thought it would easy - but it was very difficult - using the water was ok, but getting the right sized container and the right set of scales proved problematic. Not a piece like that - but other stuff I just melt, stir then xrf - of course you can't do that with jewellery --------- but a heft test tells you most of it I find. I haven't used a pen, but intend to get one in the future, I have heard good reports. have a great arvo gazza
