Buy Gemstones: Gemstones for Sale, Natural and Certified Gems

Sign In

Sign Up
English speaking customer support only

1-800-464-1640

International:

+66-39601289
USD
CART

FREE SHIPPING

Gemstones
Gemstones By Color
Gemstones By Color
Popular Gemstones
Popular Gemstones
New Gems
Precious Gemstones
Precious Gemstones
- Sapphire
- Ruby
- Emerald
- Diamond
Semi-Precious Gemstones
Semi-Precious Gemstones
Birthstones
Birthstones

Gemstones A-Z

Actinolite Cat's Eye 58 Agate 812 Agate Geode 19 Almandine Garnet 35 Amazonite 213 Amethyst 3,125 Amethyst Geode Slice 80 Ametrine 206 Ammolite 452 Andalusite 204 Andesine Labradorite 149 Apatite 562 Aquamarine 90 Aventurine 132 Azotic Topaz 13 Azurite 20 Black Opal 329 Bloodstone 255 Boulder Opal 216 Carnelian 91 Cat's Eye Apatite 39 Cat's Eye Aquamarine 18 Cat's Eye Gemstones 1,111 Cat's Eye Moonstone 67 Cat's Eye Opal 168 Cat's Eye Scapolite 97 Chalcedony 124 Charoite 166 Chocolate Opal 75 Chrome Diopside 1 Chrysoberyl 100 Chrysoberyl Cat's Eye 178 Chrysocolla 63 Chrysoprase 33 Citrine 4,248 Color Change Gemstones 830 Color-Change Diaspore 712 Color-Change Fluorite 59 Color-Change Garnet 59 Coral 293 Demantoid Garnet 248 Dendritic Agate 241 Diamond 698 Druzy Amethyst 5 Druzy Azurite 20 Druzy Citrine 51 Druzy Variscite 132 Emerald 882 Enstatite 5 Fire Agate 338 Fire Opal 168 Fluorite 205 Fossil Coral 330 Garnet 5,846 Golden Beryl 182 Grandidierite 186 Grossularite Garnet 50 Hawk's Eye 1 Hematite 372 Hemimorphite 46 Hemimorphite Druzy 46 Hessonite Garnet 2,250 Hiddenite 17 Howlite 142 Idocrase 27 Imperial Topaz 12 Iolite 171 Jade Gemstones 319 Jadeite 319 Jasper 1,362 Kornerupine 244 Kunzite 438 Kyanite 695 Labradorite 664 Lapis Lazuli 341 Larimar 153 Lepidolite 49 Malachite 243 Malaya Garnet 149 Mali Garnet 12 Maw-Sit-Sit 132 Moonstone 953 Morganite 894 Moss Agate 69 Mother Of Pearl 102 Mystic Quartz 417 Mystic Topaz 28 Nuummite 121 Obsidian 247 Onyx 288 Opal 1,223 Opal Doublet 5 Opal In Matrix 20 Peanut Wood 15 Pearl 19 Peridot 1,381 Pietersite 646 Prehnite 837 Psilomelane Dendrite 25 Pyrite 16 Pyrope Garnet 1,854 Quartz 1,323 Quartz Cat's Eye 85 Quartz With Hedenbergite 9 Quartz With Marcasite 190 Rainbow Moonstone 624 Rainbow Pyrite 183 Rhodochrosite 159 Rhodolite Garnet 457 Rhodonite 38 Rose Quartz 747 Rubellite Tourmaline 12 Ruby 1,261 Ruby In Fuchsite 93 Ruby-Zoisite 220 Rutile Quartz 540 Sapphire 5,122 Scapolite 97 Scolecite 34 Seraphinite 50 Serpentine 80 Sillimanite 73 Sillimanite Cat's Eye 401 Smithsonite 1 Smoky Quartz 1,069 Snowflake Obsidian 35 Sodalite 34 Spectrolite 147 Spessartite Garnet 381 Sphalerite 359 Sphene 506 Spinel 959 Star Diopside 8 Star Garnet 50 Star Gemstones 847 Star Moonstone 98 Star Rose Quartz 18 Star Ruby 257 Star Sapphire 413 Star Sunstone 3 Strawberry Quartz 951 Sunstone 507 Tanzanite 838 Tiger's Eye 861 Tiger's Eye Matrix 167 Topaz 4,602 Tourmaline 2,408 Tsavorite Garnet 241 Turquoise 95 Uvarovite Garnet Drusy 60 Variscite 8 Zircon 2,062

Bi-color

Black

Blue

Brown

Golden

Gray

Green

Multicolor Gemstones for Sale

Orange

Pink

Purple

Red

Turquoise

Violet

White

Yellow

Clear Colors

Gemstones for Sale Single

Gemstones for Sale Pairs

Gemstones for Sale Lots

Gemstones for Sale Faceted

Gemstones for Sale Cabochons

Sort By:

Clear All

Photos are of Actual Products for Sale

19.94 ct Marquise Boulder Opal, 36.4 x 16.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 19.94 carat weight Boulder Opal

19.94ct1 Piece

$ 109.67

36.4 x 16.3 mm

Item Description
Stone Type:	Loose Boulder Opal
Boulder Opal Weight:	19.94 ct Boulder Opal
Boulder Opal Shape:	Marquise Cabochon Boulder Opal
Boulder Opal Size:	36.4 x 16.3 mm Boulder Opal
Boulder Opal Color:	Multicolor Boulder Opal
Boulder Opal Clarity:	Opaque Boulder Opal
Boulder Opal Origin:	Australia Boulder Opal
Boulder Opal Treatment:	Untreated
Boulder Opal Quantity:	1
Boulder Opal Certificate:	GemSelect
Product Description:

View Details

Add to Cart

This Page in Other Languages

Read All

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 10

Extremely easy to use, and I am fully satisfied with the purchase process.

Posted By Fl_Beachcomber in October, 2023

Source: Bizrate

Overall Rating -> 9

I have been buy from you for years

Posted By JohnA in May, 2023

Source: Bizrate

Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

Source: Bizrate

Overall Rating -> 10

Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

Posted By Teemo in February, 2024

Source: Bizrate

Overall Rating -> 10

I FOUND WHAT I WANT IT

Posted By GABY in March, 2024

Source: Bizrate

Overall Rating -> 9

It went well

Posted By Rob in December, 2023

Source: Bizrate

Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

Source: Bizrate

Overall Rating -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

Source: Bizrate

Overall Rating -> 9

The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

Posted By Kasper in June, 2023

Source: Bizrate

Overall Rating -> 10

Great website and information

Posted By Moonshot in December, 2023

Source: Bizrate

Overall Rating -> 10

Super easy to do business for great products.

Posted By BoBBy in January, 2024

Source: Bizrate

Overall Rating -> 9

So many gorgeous stones! The only "complaint" I have is it's difficult to visualize sizes in mm. Perhaps some way to compare in inches?It has been a long time since I bought stones from Gem select, but the process wasn't too difficult.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 10

The website is easy to navigate and has a great selection. I am an amateur silver smith casting jewelry with stones

Posted By Jrplunk in April, 2024

Source: Bizrate

Overall Rating -> 10

Great Job today! No issues!

Posted By Samlovesgems777 in August, 2023

Source: Bizrate