TEXT: 4/25/2019
  Jeweler Artificer | GM Binder
  https://www.gmbinder.com/documents/print/-LZwRVDpuJ8k52LJKUyf
  1/1
  Gemologist
  A Gemologist is a master of crafting jewelery for protection,
  especially that which utilises crystals and gems as forms of
  storing or channeling energy. They are capable of refracting
  light and other power sources into a much more potent form,
  or as a way to redirect harmful effects.
  Gemologist Features
  Artificer
  Level
  Feature
  3rd
  Tools of the Trade, Gemologist Spells, Gem
  Housing
  6th
  Gem Guard
  14th
  Improved Focus
  Tools of the Trade
  By the time you adopt this specialty at 3rd level, you're deeply
  familiar with employing its tools.
  Proficiencies. You gain proficiency with glassblower's tools
  and jeweler's tools, assuming you don't already have them.
  You also gain glassblower's tools and jeweler's tools for
  free─the result of tinkering you've done as you've prepared for
  this specialization.
  Crafting. If you craft a magic item in the ring category, it
  takes you a quarter of the normal time, and it costs you half as
  much of the usual gold.
  Gemologist Spells
  Starting at 3rd level, you always have certain spells prepared
  after you reach particular levels in this class, as shown in the
  Gemologist Spells table. These spells counts as artificer spells
  for you, but they don't count against the number of artificer
  spells you prepare.
  Gemologist Spells
  Artificer Level Spells
  3rd
  absorb elements, chromatic orb
  5th
  scorching ray, blindness/deafness
  9th
  daylight, major image
  13th
  greater invisibility, sickening radiance
  17th
  scrying, wall of light
  Gem Housing
  At 3rd level, you learn how to create a device for containing
  and harnessing magic imbued crystals─in the form of a
  gauntlet, medallion, helm, or similar object─known as a gem
  housing.
  Whenever you finish a long rest and your jeweler's tools are
  with you, you can create your gem housing, or reshape it to a
  different form. If you already have a gem housing from this
  feature and create a new one, the first one is immediately
  destroyed.
  While you are wearing your gem housing and holding your
  jeweler's tools, as an action you can discharge a blast of
  elemental energy. Choose one of the following damage types:
  cold, fire, lightning, or thunder.
  Art Credits
  Art is Pyromancer's Gauntlet by Christine Choi.
  All creatures within a 15 foot cone or 5 by 30 foot line (your
  choice) originating from you must make a Dexterity saving
  throw. Targets within this area take an amount of the chosen
  damage type equal to 1d6 + your Intelligence modifier
  (minimum of one) on a failed save, or half as much damage on
  a successful one. When you use this action, you can overload
  the blast by expending a spell slot. The blast deals additional
  damage equal to 2d6 per level of the slot expended, to a
  maximum of 10d6 additional damage.
  Gem Guard
  Beginning at 6th level, as an action while you're holding your
  jeweler's tools, you can touch a willing creature and bestow it
  with a protective crystal. A Tiny gem of your choice of shape
  and color appears on a part of its body, remaining there until
  you complete a long rest or until it is destroyed. While the gem
  remains, the creature gains resistance to your choice of one of
  the following damage types; cold, fire, lightning, thunder, or
  radiant. Whenever the creature takes damage of that type, the
  gem loses a number of hit points equal to the damage taken. If
  the gem loses a total number of hit points equal to five times
  your Intelligence modifier (minimum of 5 hit points), it is
  destroyed.
  You can use this feature a number of times equal to your
  Intelligence modifier (minimum of once), and you regain all
  expended uses when you complete a long rest.
  Improved Focus
  At 14th level, your Gem Housing feature's damage increases
  to 2d6 + your Intelligence modifier (minimum of one).
  Additionally, you can have the blast you create with your
  Gem Housing feature increase in size, either up to a 30 foot
  cone or up to a 10 by 60 foot line.
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/Homebrew/BladeBlot Brew/Artificer - Gemologist (BBB).pdf