14 KT refers to the purity of the gold, in this case it's 14 Karats. As for the D's it isn't a common mark on gold so I can only assume that it is the makers mark.
I do not know, but would like to find out if you got an answer. MDCO is stamped in a platinum ring I have and I want to know what it means.
D M Merchandising, Inc in Elmhurst, IL is a private company categorized under Wholesale Jewelers. Records show it was established in 1989 and incorporated in Illinois. Current estimates show this company has an annual revenue of $20,000,000 and employs a staff of approximately 90. Companies like D M Merchandising, Inc usually offer: Heart Jewelry, Jewelry Designs, Bridesmaid Jewelry, Cartier Jewelry and Artisan Jewelry.
The letter D is the mint mark for Denver.
These are initials for Dana Augustine who is a jewelry designer
14 karat gold and dn means diamond
The D mint mark stands for the Denver Mint in Colorado were the coin was made.
D for Diamond product line can be found at their company website, eBay, Amazon, Joshua James Jewelry, and Jewelry Junkies. D for Diamond is a jewelry product line.
An Italian jewelry company whose spelling begins with the letter "D" is Damiani.
D. Cole is most famous for its jewelry. The D. Cole Jewelry store is located at 10 Exchange St., Portland, ME 04101. Not only can you buy rings such as engagement rings and other jewelry, but you can custom design your own jewelry as well.
If by "series D," you mean it has a D mint mark, it's still worth 25 cents.
On a US coin, D is the mint mark for Denver, CO (1906 and later) or Dahlonega, GA (1838-1861)