Skip to content

Search

Home
Shop
Fair Trade Gems
About Us
Wholesale
Log In/Create Account

Only a small portion of our inventory is currently online

Sign up for wholesale access

Will tariffs impact my order? Read our latest update.

Home
Shop
Fair Trade Gems
About Us
Wholesale

Ready to Ship

5 products

Sort by

Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

15-20mm
Clear all

Gem Variety

Amethyst (1)
Aquamarine (0)
Chrysoberyl (0)
Citrine (0)
Cultured Freshwater Pearl (0)
Cultured Saltwater Pearl (0)
Diopside (0)
Emerald (0)
Opal (2)
Peridot (0)
Quartz (1)
Ruby (0)
Sapphire (0)
Spinel (0)
Sunstone (0)
Topaz (0)
Tourmaline (1)
Zircon (0)

Variety Specifics

Australian Sapphire (0)
Blue Zircon (0)
California Tourmaline (0)
Ceylon Sapphire (0)
Chrome Tourmaline (0)
Cortez Pearl® (0)
Fire Citrine® (0)
Green Quartz (0)
Imperial Diopside® (0)
Iris Amethyst® (1)
Maine Tourmaline (0)
Mesa Verde® Peridot (0)
Mexican Fire Opal (1)
Mexican Opal (1)
Montana Sapphire (0)
Neon Tourmaline (0)
Oregon Sunstone (0)
Padparadscha Sapphire (0)
Rose Quartz (0)
Rutilated Quartz (1)
Seafoam Tourmaline® (0)
Smoky Quartz (0)
Tashmarine® (0)
White Topaz (0)
Yellow Citrine (0)

Shape

Baroque (0)
Cushion (0)
Emerald Cut (0)
Freeform (0)
Oval (5)
Princess Cut (0)
Rondelle (0)
Round (0)
Semi-Round (0)
Square (0)
Trillion (0)

Shape Specifics

Brilliant Cut (0)
Checkerboard Top (0)
Rose Cut (2)

Fair Trade Level

1 (0)
2 (4)
3 (1)
4 (0)

Origin

Afghanistan (1)
Africa (0)
Australia (0)
Brazil (2)
Cambodia (0)
China (0)
Colombia (0)
India (0)
Liberia (0)
Mexico (2)
Nigeria (0)
Russia (0)
Sri Lanka (0)
Uruguay (0)
USA (0)

Location

Arizona (0)
California (0)
Maine (0)
Montana (0)
Multiple (0)
Oregon (0)
Sea of Cortez (0)
Sonora (1)
South Dakota (0)
Xinjiang (0)
Yakutsk (0)

Color

Black(0)
Blue(0)
Brown(0)
Colorless(1)
Eggplant(0)
Golden(1)
Green(1)
Multi(1)
Orange(1)
Padparadscha(0)
Peach(0)
Pink(0)
Play of Color(1)
Purple(1)
Red(0)
Teal(0)
White(0)
Yellow(0)

Treatment

Not Treated (5)
Treated (0)

Gem Cut

Bead (0)
Cabochon (2)
Faceted (3)
Pearl (0)

Stone Size

1-3.75mm (26)
4-6mm (36)
6-8mm (30)
8-10mm (43)
10-12mm (30)
12-15mm (6)
15-20mm (5)
Multiple (1)

Total Gem Weight

0.0 to 0.25 carat (0)
0.50 to 0.75 carat (0)
0.75 to 1.0 carat (0)
1.50 to 2.0 carats (0)
2.0 to 3.0 carats (0)
3.0 to 5.0 carats (0)
5.0 to 10.0 carats (0)
10.0+ carats (0)

16x12mm Checkerboard Oval Iris Amethyst™ in a 14kt Rose Gold & Sterling Silver Bezel Ring

16x12mm Rose Cut Oval Iris Amethyst® in a 14kt Rose Gold & Sterling Silver Bezel Ring

Regular Price: $1,575.00

Sale Price: $1,575.00
Regular Price

Unit Price: per

Added to Cart View Cart or Continue Shopping.

Cart Error Some items became unavailable. Update the quantity and try again.

16x12mm Checkerboard Oval Rutilated Quartz in a 14kt Rose Gold & Sterling Silver Bezel Ring

16x12mm Rose Cut Oval Rutilated Quartz in a 14kt Rose Gold & Sterling Silver Bezel Ring

Regular Price: $1,295.00

Sale Price: $1,295.00
Regular Price

Unit Price: per

Added to Cart View Cart or Continue Shopping.

Cart Error Some items became unavailable. Update the quantity and try again.

17x14mm Oval Natural Tourmaline & Diamond Slide Pendant in 14kt White Gold

17x14mm Oval Natural Tourmaline & Diamond Slide Pendant in 14kt White Gold

Regular Price: $5,714.00

Sale Price: $5,714.00
Regular Price

Unit Price: per

Added to Cart View Cart or Continue Shopping.

Cart Error Some items became unavailable. Update the quantity and try again.

15x11 Play of Color Cabachon Mexican Opal Pendant in 18kt Yellow Gold

15x11 Play of Color Cabochon Mexican Opal Pendant in 18kt Yellow Gold

Regular Price: $6,999.00

Sale Price: $6,999.00
Regular Price

Unit Price: per

Added to Cart View Cart or Continue Shopping.

Cart Error Some items became unavailable. Update the quantity and try again.

15x9mm Orange Cabachon Mexican Fire Opal Pendant in 18kt Yellow Gold

15x9mm Orange Cabochon Mexican Fire Opal Pendant in 18kt Yellow Gold

Regular Price: $16,180.00

Sale Price: $16,180.00
Regular Price

Unit Price: per

Added to Cart View Cart or Continue Shopping.

Cart Error Some items became unavailable. Update the quantity and try again.

Showing items 1-5 of 5.

1-800-888-2444

Company

About Us
Blog
Contact

Customer Care

Shipping
Returns
Wholesale Accounts
Terms & Conditions
Privacy

Connect

Stay in the know!

Enter Email Address

Copyright © 2025 Columbia Gem House.

Currency

Currency

Search

Join our mailing list

For updates on products and new releases

Enter Email Address

*By completing this form you're signing up to receive our emails and can unsubscribe at any time.