Skip to content
Columbia Gem House Columbia Gem House
Account
Search
Loading...
Cart
  • Home
  • Gemstones
    • Faceted
    • Cabochons
    • Melee
    • Slices
    • Crystals
    • Pairs and Suites
    • Carvings
    • Parcels and Lots
    • Featured
      • American Gems
      • Montana Sapphires
      • Objet D' Art
  • Jewelry
    • Rings
    • Earrings
    • Necklaces
    • Pendants
    • Bracelets
    • Suites
    • Collections
      • Ready to Ship
    • Programs
  • Pearls
    • Cortez Pearls
      • Loose
      • Learn More About Cortez Pearls
    • Cultured Pearls
      • Loose
  • Beads
    • Beads
  • Services
    • Cutting
    • Consulting
    • Speaking Engagements
    • Wholesale Accounts
  • Fair Trade Gems
    • Principles
    • Protocols
    • Get Involved
  • Resources
    • Fair Trade Blog
    • Gem Education
      • Gem Facts
      • Travel the World of Gems
      • Gemstone Spotlight
      • Gemstone Glossary
      • How Gemstones are Cut
      • Gem Care & Cleaning
    • Jewelry Education
      • Step by Step
      • Designer Profile
      • Settings Glossary
      • Care and Cleaning
  • About Us
  • Account
  • Home
  • / Faceted
  • / Shape: Keystone

Faceted

Filter
  • Shape: Keystone remove
Gem Type
  • Amethyst
  • Opal
  • Topaz
Variety
  • Blue Topaz
  • Iris Amethyst
  • Oregon Opal
Shape
  • Keystone remove
Sub Shape
Fair Trade Level
  • 1
  • 2
  • 4
Origin
  • South America
  • USA
Location
  • Oregon
  • Uruguay
Color
  • Blue
  • Purple
  • Red/Orange
Treatment
  • Irradiated
  • Not Treated
Gem Cut
  • Faceted
Stone Size
  • 10x7mm
  • 12x9mm
  • 15mm
  • 20x15mm
Total Gem Weight
  • 1.28 cw
  • 1.59 cw
  • 2.39 cw
  • 2.49 cw
  • 3.23 cw
  • 9.05 cw
  • Varies By Size
15.1x9.1mm Keystone Cut Oregon Opal
15.1x9.1mm Oregon Opal Keystone
$1,255.00
12x9mm Fantasy Keystone Cut Sky Blue Topaz
10x7 to 12x9mm Sky Blue Topaz Fantasy Keystones
From $43.50
12x9mm Fantasy Keystone Cut A Purple Amethyst
10x7 to 12x9mm A Amethyst Fantasy Keystones
From $46.50
20x15mm Fantasy Keystone Cut AA Purple Amethyst
10x7 to 20x15mm AA Purple Amethyst Fantasy Keystones
From $60.00

1-800-888-2444

Company

  • About Us
  • Blog
  • Contact

Customer Care

  • Shipping
  • Returns
  • Wholesale Accounts
  • Terms & Conditions
  • Privacy

Connect

Stay in the know!

Copyright © 2023 Columbia Gem House, Inc..
American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard PayPal Shop Pay Venmo Visa