X
Gemstone Search
90,000+ Happy Customers
20+ Years In Business
Call Us Mon–Fri 8am–5pm

Boulder Opal from Australia - In Stock and ready to Ship

Boulder Opal from Australia Weight
Boulder Opal from Australia Size
Boulder Opal from Australia Clarity
Boulder Opal from Australia Price

Size Explained

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

5.44ct Multicolor Boulder Opal, Fancy, Opaque

15 x 9.3 mm

$ 22.58

View Gem

39.95ct Multicolor Boulder Opal, Sphere / Ball, Opaque

17.6 mm

$ 198.95

View Gem

2.86ct Multicolor Boulder Opal, Oval, Opaque

13.6 x 7.3 mm

$ 11.87

View Gem

4.57ct Multicolor Boulder Opal, Cushion, Opaque

18.9 x 9.1 mm

$ 18.97

View Gem

23.45ct Multicolor Boulder Opal, Fancy, Opaque

21.7 x 17.9 mm

$ 116.78

View Gem

12.31ct Multicolor Boulder Opal, Oval, Opaque

25.9 x 17.1 mm

$ 61.30

View Gem

54.71ct Multicolor Boulder Opal, Oval, Opaque

27.3 x 23.3 mm

$ 419.58

View Gem

63.70ct Multicolor Boulder Opal, Fancy, Opaque

29.5 x 29.3 mm

$ 317.23

View Gem

9.26ct Multicolor Boulder Opal, Fancy, Opaque

21.4 x 15.4 mm

$ 64.56

View Gem

8.77ct Multicolor Boulder Opal, Fancy, Opaque

22.1 x 13.6 mm

$ 36.40

View Gem

7.72ct Multicolor Boulder Opal, Fancy, Opaque

22.4 x 13.4 mm

$ 32.04

View Gem

5.29ct Multicolor Boulder Opal, Fancy, Opaque

17.4 x 12.2 mm

$ 21.95

View Gem

5.77ct Multicolor Boulder Opal, Fancy, Translucent

18.1 x 11.1 mm

$ 28.73

View Gem

14.55ct Multicolor Boulder Opal, Oval, Opaque

26.3 x 11.2 mm

$ 101.44

View Gem

22.64ct Multicolor Boulder Opal, Oval, Opaque

30.5 x 13.4 mm

$ 112.75

View Gem

8.33ct Multicolor Boulder Opal, Fancy, Opaque

17.9 x 11.7 mm

$ 34.57

View Gem

20.13ct Multicolor Boulder Opal, Fancy, Opaque

28.4 x 17.1 mm

$ 110.27

View Gem

16.01ct Multicolor Boulder Opal, Fancy, Opaque

30.6 x 12.4 mm

$ 87.71

View Gem

13.59ct Multicolor Boulder Opal, Oval, Opaque

20 x 15 mm (calibrated)

$ 67.68

View Gem

7.17ct Multicolor Boulder Opal, Fancy, Opaque

22.5 x 8.7 mm

$ 49.99

View Gem

10.40ct Multicolor Boulder Opal, Fancy, Opaque

19.5 x 12.6 mm

$ 79.76

View Gem

40.55ct Multicolor Boulder Opal, Fancy, Opaque

26 x 23.1 mm

$ 201.94

View Gem

11.19ct Multicolor Boulder Opal, Fancy, Opaque

18.2 x 14.8 mm

$ 55.73

View Gem

17.98ct Multicolor Boulder Opal, Oval, Opaque

25 x 16.9 mm

$ 74.62

View Gem

Why Buy Boulder Opal From Australia from GemSelect?

GemSelect Certified Store Reviews

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

Overall Rating -> 10 star ratings

My current project is something BLUE . Opal earrings with matching tennis bracelet for her wedding. The opals and sixty two sapphires VVS & VS are AMAZINGLY BEAUTIFUL. The private jewelers were impressed by the clarity and inclusion free of the sapphires . I want to say thank you for the High quality sapphires that I purchased for my daughtera's wedding.

Posted By My real name Dean or Wandering about in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

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