Caps shaped liked a feminine neckline and engraved with the double-G royal monogram reference the inspiration for the Montblanc Princesse Grace de Monaco collection (www.montblanc.com). The series of writing instruments includes three pen designs, the most exclusive of which is limited to three examples (one for each of the princess’s children). Priced at $107,700, the pen is crafted from solid gold and adorned with 3.4 carats of gemstones, including a sizable drop-cut diamond affixed to the clip. A second edition, priced at $37,300 and limited to 29 examples (for 1929, the year of the princess’s birth), is set with diamonds and rubies. The $690 Special Edition version is coated in purple resin and features a gently curved barrel.