This can be made in 14k, 18k and 24k solid gold.  This is the smallest size what I made

for four way cross. I am using tracking parcel for delivery. 

*Metal : 14K Gold (hall-marked)

*Metal weight: 1  grams

*Dimension : 13mm(H) x 11mm(W) with bail

*Chain is not included

* Authorized Gem Certification will be included