My friend Monty would call this a nestler.  A nestler pendant is one that drops perfectly into the decolletage.  Very tastefully, of course.  Entirely handcrafted in 22k yellow gold.  One of a kind.

Gemstones	Citrine	Moonstone	Prehnite	Diamonds
Gem Dimensions	10 x 14	10 x 12	13 x 30	3 x 4 mm
Gem Weights	5.8 carats	3.8 cts	17.9 cts	0.30 tcw
Length	3"