Board Thread:General Discussion/@comment-26246605-20150513123231/@comment-25998503-20150513132558

We don't know. If you are asking for theories however:

Steven with Amethyst: Ametrine, Chalcedony, or Kuzinite.

Steven with Pearl: Strawyberry Quartz, Hiddenite, or Goshenite.

Steven with Ruby and Sapphire: Spinel, Rhodolite Garnet, or Agate

Steven with Ruby: Carnelian or Rubellite Tourmaline.

Steven with Sapphire: Larimar.

Steven with Lapis: Kyanite or Hemimorphite.

Steven with Human: Saven (Sadie) Stuck (Buck) Stars (Lars) Stonion (Onion) Stamien (Jamie) 

Steven with Jasper: Sunstone

Steven with Peridot: Verdite, Jadelite, or Gaspetite.