X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Natural Bi-Color Gemstones

Explore our selection of natural bi-color gemstones, featuring unique loose gems with two beautiful colors in a single stone.

Bi Color Gemstones Weight
Bi Color Gemstones Size
Bi Color Gemstones Clarity
Bi Color Gemstones Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Bi Color Gemstones
Black
Blue
Brown
Golden
Gray
Green
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
Clear All

25.38ct Bi-color Ametrine, Oval, VVS-VS

22.6 x 16.8 mm

$ 223.79

View Details

7.02ct Bi-color Ametrine, Pear Shape, VVS

15.9 x 11.5 mm

$ 64.86

View Details

20.00ct Bi-color Ametrine, Oval, VVS

21.4 x 14.9 mm

$ 176.35

View Details

3.38ct Bi-color Ametrine, Emerald Cut, VS

10 x 8 mm (calibrated)

$ 42.72

View Details

8.44ct Bi-color Ametrine, Oval, VVS

15.4 x 11.3 mm

$ 66.84

View Details

19.05ct Bi-color Ametrine, Pear Shape, VS

20 x 15 mm (calibrated)

$ 150.88

View Details

20.76ct Bi-color Ametrine, Pear Shape, VVS-VS

21.8 x 14.8 mm

$ 183.06

View Details

24.83ct Bi-color Ametrine, Oval, VS

23.4 x 16.3 mm

$ 208.57

View Details

20.11ct Bi-color Ametrine, Trillion, VVS

18.5 x 16.8 mm

$ 177.31

View Details

13.95ct Bi-color Ametrine, Oval, VVS

19.4 x 13.9 mm

$ 128.90

View Details

10.21ctw Bi-color Tourmaline, Fancy, Transparent

12.1 x 11 mm

$ 306.30

View Details

38.41ct Bi-color Ametrine, Oval, VVS

27 x 20 mm (calibrated)

$ 253.51

View Details

8.90ct Bi-color Ametrine, Oval, VVS

16.2 x 11.1 mm

$ 70.49

View Details

1.74ct Bi-color Ametrine, Emerald Cut, VVS

9 x 7 mm (calibrated)

$ 21.99

View Details

2.22ct Bi-color Ametrine, Emerald Cut, VS

9 x 7 mm (calibrated)

$ 28.06

View Details

23.65ct Bi-color Ametrine, Oval, VVS-VS

18.9 x 15.6 mm

$ 218.53

View Details

2.21ct Bi-color Ametrine, Emerald Cut, VVS

9 x 7 mm (calibrated)

$ 27.93

View Details

10.40ct Bi-color Ametrine, Marquise, VS

25.8 x 10.2 mm

$ 96.10

View Details

2.29ct Bi-color Ametrine, Emerald Cut, VVS

9 x 7 mm (calibrated)

$ 28.95

View Details

16.24ct Bi-color Ametrine, Pear Shape, VVS

21.8 x 14.1 mm

$ 143.20

View Details

0.96ct Bi-color Tourmaline, Oval, Transparent

6.4 x 4.6 mm

$ 46.08

View Details

17.33ct Bi-color Ametrine, Oval, VVS-VS

18 x 13 mm (calibrated)

$ 160.13

View Details

8.43ct Bi-color Ametrine, Emerald Cut, VS

14 x 10 mm (calibrated)

$ 70.81

View Details

24.08ct Bi-color Ametrine, Oval, VVS

21.7 x 16.6 mm

$ 190.72

View Details

Why Buy Bi Color Gemstones from GemSelect?

Natural Bi-Color Gemstones

Our natural bi-color gemstones display two distinct colors within a single stone, creating striking visual effects that make each gem truly unique. These rare stones are highly valued by collectors and jewelry designers alike.

Loose Bi-Color Gemstones Online

Shop loose bi-color gemstones online at GemSelect with confidence. Our collection includes rare two-color gems such as ametrine, tourmaline, sapphire and more, all available with secure checkout and worldwide shipping.

Loose Bi-Color Gemstones with two natural colors

What Makes Bi-Color Gemstones Special

Bi-color gemstones form when changes in mineral composition or crystal growth conditions occur during formation. The result is a fascinating gemstone displaying two different colors naturally within the same crystal.

Popular Bi-Color Gemstone Types

Some of the most popular bi-color gemstones include ametrine, bi-color tourmaline, sapphire, fluorite and quartz varieties. These gems are prized for their natural color zoning and dramatic appearance.

Bi-Color Tourmaline

Bi-color tourmaline is among the most famous two-color gemstones, often displaying striking combinations such as pink and green. These gems are especially popular in custom jewelry designs.

Ametrine - Natural Purple and Gold Gem

Ametrine is a remarkable bi-color gemstone that combines purple amethyst and golden citrine in a single crystal. The natural color separation makes it a favorite for faceted stones and statement jewelry.

Bi-Color Gems for Jewelry

Two-color gemstones are perfect for distinctive jewelry pieces. Their natural color transitions create eye-catching rings, pendants and earrings that stand out from traditional single-color gems.

Wholesale Bi-Color Gemstones

GemSelect offers bi-color gemstones for both collectors and jewelry designers. Our loose gems are available individually or in matching pairs, making them ideal for custom jewelry creations.

Learn more about gemstone varieties and properties on our Gemstone Information Pages.

FAQs

What are bi-color gemstones?

Bi-color gemstones are natural gems that display two distinct colors within a single crystal. The colors usually form during crystal growth due to changing mineral conditions.

Are bi-color gemstones natural?

Yes, bi-color gemstones occur naturally when different elements or growth phases affect the crystal during formation. At GemSelect, all treatments are fully disclosed.

Which gemstones commonly occur in bi-color varieties?

Tourmaline, ametrine, sapphire, fluorite and quartz are among the most well-known gemstones that naturally form with two distinct colors.

Are bi-color gemstones valuable?

Yes, many bi-color gemstones are highly valued because of their rarity and striking appearance. Stones with strong color contrast and good clarity are especially desirable.

Are bi-color gemstones good for jewelry?

Bi-color gemstones are excellent for jewelry because their unique color combinations create eye-catching designs. They are often used in rings, pendants and custom pieces.

Can I buy loose bi-color gemstones online?

Yes, GemSelect offers a wide selection of loose bi-color gemstones in many shapes and sizes, all available with detailed photos and worldwide shipping.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate
Enlarged Gemstone Image