Custom "d" birthstone charm with 1, 3mm round AA aquamarine in 10k yellow gold

Create one, custom 10k yellow gold "d" charm with 1 3mm round AA aquamarine bezel set to match client's "m" charm. Add to necklace 6/8" away from "m".

Full Necklace Details:

One, custom 10k yellow gold station necklace with a custom "m" charm and a custom “d” charm measuring 18 1/8 inches in length. 

The necklace contains:
1, round natural opal measuring 3mm in A quality, bezel set. 
1- round genuine aquamarine measuring 3mm in AA quality, bezel set.

The charms are on a diamond cut cable chain, 1.2 mm in width.

The necklace has a total metal weight of 2.82 dwt.