The cor gems mission is to deliver the best customer service on Earth!

FREE Returns & Exchanges

• Free return shipping & No restocking fee.
• 60-day return period.

FREE Insurance

• Comprehensive coverage for all your cor gems purchases.
• Receive your item or get your money back. Guaranteed.

FREE Tracked & Insured Shipping!

• Free tracked & insured shipping included with this item!
• Shipment via USPS First Class Mail or Asendia International Priority

• Canada/USA: 3 - 10 business days
• Western Europe & Australia: 10 - 21 business days
• Rest of the world: 14 - 30 business days
• Customs holds and other delays outside our control may increase these times

Details

Species: Natural Spinel

Dimensions: Varies from 0.1 mm to 4 mm +

Treatment: Unheated & Untreated. Guaranteed.

Origin: Lục Yên District, Vietnam

4 Cs

Carat Weight: 750 carats+

Color: Blue including some violet blue, some sky blue, some dark blue, and of course the coveted electric cobalt blue!

Cut: Rough > Some is facet-grade, some is cab-grade, much of it cannot be cut or will cut included stones. This is typical for cobalt blue spinel.

Clarity: Semi-Translucent - Transparent 

To those familiar with cobalt blue spinel, this price is very reasonable!

Certification

Available at cost.

Social Media

Instagram: @cor_gems

Shipping

• All cor gems parcels are shipped with tracking and comprehensive insurance.

• Take a full 14 calendar days to combine as many purchases into one order as you like.

• Priority/Express shipping services are available at cost.

Custom Orders

• The inventory of gemstones we can provide customers with is thousands of times larger than what we can offer on GemRock Auctions
  
• We have access to the best gems on Earth. Including:
  • Burmese rubies, Kashmir sapphire, Colombian emerald, Ceylon Padparadscha, Jedi spinel, Russian alexandrite and demantoid, Brazilian Paraíba