Seven shades of Opal! What's the difference?

Seven shades of Opal! What's the difference?

Opals come in a vast array of colors, translucence, clarity, and shapes. Opal also happens to be one of my favorite materials to cut. Given the overwhelming variety of opals available for purchase or use in jewelry, where is an opal fan to start? Knowledge is key, and we can start by bucketing opal into 7 different types of stone. What are they?

1. Black opal is the most expensive and the rarest variety. The combination of the intense background color of opaque black to dark grey pops the "play of color" (the splitting of light into the colors of a spectrum that happens when light passes through the gaps between the silica spheres of the rock) and creates a one-of-a-kind top-quality gemstone. Only found in Lightening Ridge, Australia.

2. Crystal opal is often cut as a two sided stone as it is usually semitransparent to transparent which aids in its excellent play of color. Best crystal opal is from Australia.

3. White opal is more abundant and found in many locations such as Australia, Ethiopia, Brazil, and the United States. Background color is white to light grey. Often found as moderately priced commercial opal. High quality white opal has vivid play-of-color and sells for a much higher price point.

4. Boulder opal is always cut to include the host rock (ironstone), as it is the reinforcing layer behind the gem. The opal shows up as thin layers of matrix or river of color through the stone. Because of this natural backing, boulder opal is more durable than other opal types. Boulder opal is often cut into irregular shapes and sizes that play to the best features of the matrix. This means boulder opal lends itself towards one-of-a-kind pieces of jewelry. Karin Luvaas Jewelry uses a lot of boulder opal! Only found in Queensland, Australia.

5. Fire opal is most commonly found in Mexico and is regularly faceted because of the clarity and color. The background is a transparent or semi translucent orange, red, or yellow and if there is play of color, the stone is typically cut as a cabochon to feature the phenomenon. Newer discoveries of fire opal have been found in Oregon and Brazil.

6. Water opal (also known as jelly opal) has minimal play of color and has a cloudy appearance. Background color can be transparent to translucent. For these reasons, water opal is lower in value. 

7. Assembled opal is when a thin layer of opal, a slice that is not durable enough to stand alone, needs to be backed with another material to improve appearance and durability. These are typical found as doublets and triplets. You will notice a distinct line of color difference when viewing the stone from the side. These stones tend to be much less expensive.

Now that you know what you're looking for, let's get your opal on! You can shop opal on here.

Recent Posts
Sapphire: A Rainbow of Colors to Choose From🌈 A Rockhound's Haven Bellevue Art Museum Art Fair Recap 4.5 Billion Year Old Gemstones from Space?! Where can I get some! Want Mystical Powers?
14k gold Alfie Norville Gem and Mineral Museum almandine alternative birthstones Alternative July birthstones alternativebridal American gems amethyst andradite aquamarine art fair 2022 August Birthstone August birthstone jewelry Australian Opal Bellevue Art Museum Art Fair Benitoite Bi-color sapphire Birthstone jewelry gifts black and gold Black Opal Boulder Opal bridaljewelry Burmese rubies Buying Gemstones Buying opal jewelry Bypass ring California gemstones California pink tourmaline California state gemstone carnelian cast in place gemstones chalcedony charoite chrysocolla chrysoprase Colorado turquoise colors of opal Columbia-Willamette Faceter's Guild Crystal Opal demantoid Dendritic agate Denver Gem Show diamond druzy enamel engagementjewelry engagementring Ethiopian Opal faceting Fancy sapphires February birthstone fluorite garnet Gem and Mineral Museum Gems and Minerals gemstone charm jewelry Gemstone mines in America Gemstone mines open to public Georgia lapidary school Gifts for mom graduation jewelry grossular Hand-cut Opal handcut gemstones Handmade sapphire jewelry Handmade turquoise jewelry hessonite Himalaya Tourmaline Mine horsetail inclusion Inlay iolite jade January Birthstone July birthstone juried show Kintsugi Kintsugi jewelry labradorite lapidary lepidolite March Birthstone Mexican Fire Opal mini stone pendant mining Mixed metals Montana sapphire moon charms mother child jewelry Mother's Day Gifts Mother's Day jewelry gifts Motherhood Navada gemstone mining Navada turquoise necklace New Mexico turquoise New Mexico Turquoise Museum New Rings Collection 2022 nontraditionalengagementrings one-of-a-kind charm pendant opal Opal Jewelry Opal Mining Oregon Opal Padparadscha Padparadscha sapphire pallasite meteorites pantone color of the year 2022 pantone very peri Parti Sapphire pendant Peridot Peridot Beach Peridot from Arizona periwinkle Play of Color Opal purple purple jasper pyrope raw diamonds rhodolite Rice Northwest Museum of Rocks and Minerals Rockhounding America Rockhounding for sapphire Rockhounding for turquoise ruby sapphire Sapphire rough September birthstone sodalite Sourcing Gemstones Sourcing sapphire Spectrum Sunstone Mine spessartine spinel sterling silver summer collection summer jewelry styles sunstone Surface Matters: Grit & Gloss tanzanite The Enamelist Society tiffany stone tourmaline tsavorite Tucson Gem Show Turquoise Turquoise mining uniquering uvarovite Valentine's Day jewelry gifts very peri very peri jewelry White Opal William Holland School of Lapidary Arts