• Login
  • |
  • Register
0 items
Your cart is empty
New Products | Specials | Closeouts
Close
  • Home
  • Tools & Equipment
    • Bench Tools
        • Bench Tools
        • Workbenches
        • Broaches & Burnishers
        • Burs & Drills
        • Drilling Equipment
        • Gauges & Calipers
        • Microscopes
        • Task Lighting
        • Magnifiers
        • Saw Blades
        • Saw Frames
        • Flex Shafts & Rotary
        • Files
        • Pliers & Cutters
        • Tweezers
        • Vises
        • Belt Sanding
        • Taps & Dies
        • Jewelry Tool Kits
    • Casting
        • Casting
        • Burnout Ovens
        • CAD / CAM
        • Casting Machines & Equipment
        • Flasks & Bases
        • Investment
        • Mold Rubber & Supplies
        • Wax Carving Tools
        • Wax
        • Crucible
    • Engraving & Stonesetting
        • Engraving & Stonesetting
        • Air Compressors
        • Stone Setting Tools
        • BenchMates & Accessories
        • Engraving Blocks
        • Engraving Systems & Handpieces
        • Gravers & Accessories
        • Practice Rings, Mountings & Plates
        • Diamond Power Hone
        • Thermo-Loc
        • Engraving Machines
    • Forming
        • Forming
        • Bench Blocks & Anvils
        • Bezel Blocks
        • Chasing & Stamping
        • Dapping Tools
        • Disc Cutters & Hole Punching
        • Drawplates & Drawbenches
        • Hammers & Mallets
        • Jump Ring Makers
        • Mandrels
        • Ring Sizers & Stretchers
        • Rolling Mills
        • Shears
        • Stakes
    • Polishing & Finishing
        • Polishing & Finishing
        • Abrasive Paper
        • Polishing Compound
        • Brushes
        • Tumblers & Media
        • Polishing Equipment
        • Electroplating
        • Buffs
        • Polishing Wheels & Rods
        • Sanding Bands, Disc, & Sticks
        • Sharpening Stones
        • Cleaning Solution
        • Polishing Aids
        • Steam Cleaners
        • Ultrasonics
        • Surface Treatments
    • Soldering & Torches
        • Soldering & Torches
        • Fluxes
        • Laser & PUK Welders
        • Pickle & Picklers
        • Soldering Equipment
        • Torches
    • More
        • More
        • Safety Products
        • Ear Piercing
        • Books & DVDs
        • Bead Stringing
        • Watch Tools
        • Scales & Testing
        • Boxes
        • Gemological Instruments
        • Adhesives
        • E-Gift Certificates
  • Findings
    • Bands & Mountings
        • Bands & Mountings
        • Ring Mountings
        • Wedding Bands
        • Ring Guards
        • Ring Shanks
    • Chains & Clasps
        • Chains & Clasps
        • Clasps
        • Jump and Split Rings
        • Chains
    • Pinstems & Components
        • Pinstems & Components
        • Bails
        • Beads, Balls and Tubes
        • Coin Mounts, Initials, Guards
        • Components
    • Earrings
        • Earrings
        • Ear Post & Backs
        • Earring Mountings
        • Hoop Earrings
        • Clip Earrings
        • Lever Backs
        • Earring Wires
    • Pendants
        • Pendants
        • Round
        • Square
        • Oval
        • Emerald
        • Pear
        • Heart
        • Marquise
        • Pearl & Stone
    • Settings
        • Settings
        • Round
        • Square
        • Oval
        • Emerald
        • Marquise
        • Pear
        • Triangle
        • Trillion
        • Heart
        • Rectangular
        • Baguette
  • Gemstones
    • Cabochons
        • Cabochons
        • Genuine Cabochons
        • Lab Created / Assembled Cabochons
    • Faceted Stones
        • Faceted Stones
        • Genuine Faceted Stones
        • Lab Created / Assembled Faceted Gemstones
        • Genuine Diamonds
    • Pearls
        • Pearls
        • Freshwater Pearls
        • Akoya Pearls
  • Metals
    • Silver Wire & Tubing
        • Silver Wire & Tubing
        • Art Clay Silver
        • Rivets
        • Silver Wire & Tubing
    • Sheet, Stock & Stampings
        • Sheet, Stock & Stampings
        • Gold & Platinum Stock
        • Base Metal Stock & Stampings
        • Silver Sheet & Grain
    • Alloys & Solders
        • Alloys & Solders
        • Alloys
        • Solders
  • Home
  • Tools & Equipment
      • Bench Tools
        • Workbenches
        • Broaches & Burnishers
        • Burs & Drills
        • Drilling Equipment
        • Gauges & Calipers
        • Microscopes
        • Task Lighting
        • Magnifiers
        • Saw Blades
        • Saw Frames
        • Flex Shafts & Rotary
        • Files
        • Pliers & Cutters
        • Tweezers
        • Vises
        • Belt Sanding
        • Taps & Dies
        • Jewelry Tool Kits
      • Casting
        • Burnout Ovens
        • CAD / CAM
        • Casting Machines & Equipment
        • Flasks & Bases
        • Investment
        • Mold Rubber & Supplies
        • Wax Carving Tools
        • Wax
        • Crucible
      • Engraving & Stonesetting
        • Air Compressors
        • Stone Setting Tools
        • BenchMates & Accessories
        • Engraving Blocks
        • Engraving Systems & Handpieces
        • Gravers & Accessories
        • Practice Rings, Mountings & Plates
        • Diamond Power Hone
        • Thermo-Loc
        • Engraving Machines
      • Forming
        • Bench Blocks & Anvils
        • Bezel Blocks
        • Chasing & Stamping
        • Dapping Tools
        • Disc Cutters & Hole Punching
        • Drawplates & Drawbenches
        • Hammers & Mallets
        • Jump Ring Makers
        • Mandrels
        • Ring Sizers & Stretchers
        • Rolling Mills
        • Shears
        • Stakes
      • Polishing & Finishing
        • Abrasive Paper
        • Polishing Compound
        • Brushes
        • Tumblers & Media
        • Polishing Equipment
        • Electroplating
        • Buffs
        • Polishing Wheels & Rods
        • Sanding Bands, Disc, & Sticks
        • Sharpening Stones
        • Cleaning Solution
        • Polishing Aids
        • Steam Cleaners
        • Ultrasonics
        • Surface Treatments
      • Soldering & Torches
        • Fluxes
        • Laser & PUK Welders
        • Pickle & Picklers
        • Soldering Equipment
        • Torches
      • More
        • Safety Products
        • Ear Piercing
        • Books & DVDs
        • Bead Stringing
        • Watch Tools
        • Scales & Testing
        • Boxes
        • Gemological Instruments
        • Adhesives
        • E-Gift Certificates
  • Findings
      • Bands & Mountings
        • Ring Mountings
        • Wedding Bands
        • Ring Guards
        • Ring Shanks
      • Chains & Clasps
        • Clasps
        • Jump and Split Rings
        • Chains
      • Pinstems & Components
        • Bails
        • Beads, Balls and Tubes
        • Coin Mounts, Initials, Guards
        • Components
      • Earrings
        • Ear Post & Backs
        • Earring Mountings
        • Hoop Earrings
        • Clip Earrings
        • Lever Backs
        • Earring Wires
      • Pendants
        • Round
        • Square
        • Oval
        • Emerald
        • Pear
        • Heart
        • Marquise
        • Pearl & Stone
      • Settings
        • Round
        • Square
        • Oval
        • Emerald
        • Marquise
        • Pear
        • Triangle
        • Trillion
        • Heart
        • Rectangular
        • Baguette
  • Gemstones
      • Cabochons
        • Genuine Cabochons
        • Lab Created / Assembled Cabochons
      • Faceted Stones
        • Genuine Faceted Stones
        • Lab Created / Assembled Faceted Gemstones
        • Genuine Diamonds
      • Pearls
        • Freshwater Pearls
        • Akoya Pearls
  • Metals
      • Silver Wire & Tubing
        • Art Clay Silver
        • Rivets
        • Silver Wire & Tubing
      • Sheet, Stock & Stampings
        • Gold & Platinum Stock
        • Base Metal Stock & Stampings
        • Silver Sheet & Grain
      • Alloys & Solders
        • Alloys
        • Solders
Close
  • Home
  • Tools & Equipment
  • More
  • Gemological Instruments
Back

Categories

  • Bench Tools
  • Casting
  • Engraving & Stonesetting
  • Forming
  • Polishing & Finishing
  • Soldering & Torches
  • More
    • Safety Products
    • Ear Piercing
    • Books & DVDs
    • Bead Stringing
    • Watch Tools
    • Scales & Testing
    • Boxes
    • Gemological Instruments
    • Adhesives
    • E-Gift Certificates
Gemological Instruments
Back to Top

Helpful Links

  • About Us
  • Privacy Policy
  • Frequently Asked Questions
  • Shipping & Deliveries
  • Returns & Exchanges
  • Contact & Hours

Shop

  • Home
  • Findings
  • Gemstones
  • Metals
  • Tools & Equipment
  • Revere Academy

Contact & Hours

  • We would love to hear from you!
  • email: info@ottofrei.com
  • phone: (510) 832-0355
  • phone hours: Monday - Friday 8:30am - 5pm PST
  • counter hours: Monday - Friday 8:30am - 12:30pm & 1:30pm - 5:00pm PST
Proud Member of
© 2003 - 2018 OttoFrei.com