Education
Diamond Education
- Lab Diamonds
- History Of Lab Grown Diamonds
- Lab Diamond Shapes
- Lab Diamonds
- Lab Diamond Ring Guide
- Lab Diamond Carat Guide
- Lab Diamonds Color Guide
- Lab Diamond Shape Guide
- Lab Diamond Size Guide
- Lab Diamond Cut Guide
- Lab Diamond Jewelry Guide
- Lab Diamonds vs Moissanite
- Lab Diamonds vs. Real Diamonds
- Lab Grown Diamond vs. Cubic Zirconia
- Lab Diamonds vs. White Sapphires
- Lab Diamonds
- Diamond 4 C's
- Diamond Buying Guide
- Answers to 1 Carat Diamond Questions
- Your Guide to Buying a Diamond Online
- How to Pick the Right Diamond
- Diamond Buying Mistakes
- Real vs. Fake Diamonds
- Lab Diamond Buying Guide
- 10 Most FAQ - Diamonds
- Off Size Diamonds Guide
- Popular Diamond Cuts
- Price of a 2 Carat Diamond
- Top FAQ - Lab Diamonds
- What Is the Average Diamond Size in Engagement Rings?
- Diamond Carat
- Diamond Clarity
- IF Diamonds
- FL Diamonds
- Diamond Inclusions Guide
- Flawless vs Internally Flawless
- Which Diamond Clarity Is Best?
- VS2 vs VS1: Diamond Clarity Comparison
- VVS2 vs VVS1: Diamond Clarity Comparison
- SI2 vs SI1: Diamond Clarity Comparison
- SI1 vs VS2: Diamond Clarity Comparison
- VS1 vs VVS2: Diamond Clarity Comparison
- Accent Diamond Clarity
- Lab Diamond Clarity
- SI Diamonds
- VS Diamonds
- VVS Diamonds
- Diamond Color
- Diamond Cut
- Diamond Cut Types
- Ideal Cut Diamonds
- Hearts and Arrows Diamonds
- What is Diamond Depth
- Diamond Table
- Lab Diamond Cut
- Antique Cut Diamonds
- Brilliant Cut Diamonds
- Rose Cut Diamonds
- What Is The Most Expensive Diamond Cut?
- What Are Step Cut Diamonds?
- Diamond Bow Ties
- How Are Diamonds Cut
- Diamond Brilliance
- Spread Diamonds
- Diamond Fire
- Crushed Ice Diamonds
- Diamond Shape
- Lab Diamond Shape
- Asscher
- Cushion
- Emerald
- Marquise
- Oval
- Pear
- Princess
- Radiant
- Round
- Which Diamond Cut Is Best?
- Round vs Princess Diamond Cut
- Round vs Cushion Diamond Cut
- Cushion vs Princess Diamonds
- Cushion vs Oval Cut Diamonds
- Emerald vs Asscher Cut Diamond
- Princess vs Marquis Diamonds
- Princess vs Radiant Cut Diamonds
- Cushion vs Asscher Cut Diamonds
- Emerald vs Radiant Cut Diamonds
- Oval vs Marquise Cut Diamonds
- Oval vs Pear Cut Diamonds
- Pear vs Marquise Cut Diamonds
- Emerald vs Cushion Cut Diamonds
- Elongated Cushion Cut Diamonds
- Diamond Certification
- Diamond Fluorescence
- How Diamonds Are Formed
- Diamond Pricing
- Diamond Size Chart Carat & MM
- Diamond Symmetry
- Diamond Polish
- Diamond Girdle
- Diamond Culet
- Engraved Rings
- Fancy Colored Diamonds
- Loose Diamonds
- History Of Lab Grown Diamonds
- Natural vs Synthetic Diamonds
- Diamond Sourcing
- NY Diamond District
- Diamond Certification
- A Guide to Accent Diamonds
Engagement Ring Education
- How To Buy Engagement Rings
- Affordable Engagement Rings
- Cost of a One Carat Diamond
- How To Buy A Lab Diamond Ring
- How to Buy An Engagement Ring In a Time Crunch
- How to Choose An Engagement Ring
- How to Pick Your Engagement Ring Budget
- Engagement Rings For Second Marriage
- Best Time to Buy An Engagement Ring
- How to Buy An Engagement Ring As a Couple
- Everything You Need to Know About Dainty Engagement Rings
- Future Mother In Law's Guide to Engagement Ring Shopping
- Engagement Ring Financing
- Why You Need an Engagement Ring Appraisal
- Best Round Cut Engagement Rings
- Best Square Cut Engagement Ring
- Top Teardrop Engagement Rings
- Best Asscher Cut Engagement Rings
- Best Oval Cut Engagement Rings
- Best Radiant Cut Engagement Rings
- Best Marquise Cut Engagement Rings
- Twisting Rings
- Best Emerald Cut Engagement Rings
- Best Cushion Cut Engagement Rings
- Best Dainty Engagement Rings
- Best Unique Engagement Rings
- Best Traditional Diamond Engagement Rings
- Best Split Shank Diamond Engagement Rings
- Top 10 Square Halo Engagement Rings
- Top 10 Unusual Engagement Rings
- Black Diamond Engagement Rings
- Edwardian Engagement Rings
- Antique Style Engagement Rings
- Nature Inspired Engagement Ring
- Filigree Rings
- Art Deco Rings
- Wide Band Engagement Rings
- Infinity Engagement Rings
- Best Two Tone Diamond Engagement Rings
- Victorian Style Engagement Rings
- Minimalistic Engagement Rings
- Big Style Engagement Rings
- Cute Style Engagement Rings
- Modern Style Engagement Rings
- Past Present and Future Rings
- Thin Engagement Rings
- Pretty Style Engagement Rings
- Double Band Engagement Rings
- 1 Carat Diamond Ring
- Top Princess Cut Halo Engagement Rings
- Top Cushion Cut Halo Engagement Rings
- Top Women's Rose Gold Engagement Rings
- Top Round Halo Engagement Rings
- Top Sapphire and Diamond Engagement Rings
- Top East West Engagement Rings
- Top Pave Engagement Rings
- Top Split Shank Halo Engagement Rings
- Top Unique Halo Engagement Rings
- Rose Gold Pear Shaped Engagement Rings
- Top Yellow Gold Pear Shaped Engagement Rings
- Top Oval Halo Engagement Rings
- Top Cushion Halo Engagement Rings
- Top Yellow Gold Engagement Rings
- Top Marquise Halo Engagement Rings
- Top Yellow Gold Cushion Cut Engagement Rings
- Top Emerald Cut Three Stone Engagement Rings
- Top Bypass Engagement Rings
- Top Rose Gold Cushion Cut Engagement Rings
- Top Rose Gold Oval Engagement Rings
- Top Emerald Cut Halo Engagement Rings
- Top Yellow Gold Oval Engagement Rings
- Top Rose Gold Emerald Cut Engagement Rings
- Top Oval Three Stone Engagement Rings
- Top Floating Diamond Engagement Rings
- Top Cushion Cut Three Stone Engagement Rings
- Top Princess Cut Three Stone Engagement Rings
- Top Simple Engagement Rings
- Vintage Style Engagement Rings
- Types of Accent Diamonds
- Everything You Need to Know Before Setting Diamonds
- Engagement Ring Prong Guide
- All About Ring Resizing
- Identifying Your Ring After A Repair
- Everything You Need to Know About Milgrain
- Everything You Need to Know About Wide Band Engagement Rings
- Eternity Rings vs Infinity Rings
- When To Propose
- What Are Baguette Diamond Engagement Rings
- What to Say When You Propose
- What Are the Groom's Parents Responsible For?
Gemstone Education
Jewelry Education
- Jewelry Buying Guide
- How To Buy Jewelry Online
- Diamond: 10th Anniversary Gifts
- Ruby: 40th Anniversary Gemstone & Jewelry
- Sapphire: 5th Anniversary Gemstone & Jewelry
- Top 10 Sapphire Earrings
- Emerald: 20th Anniversary Gemstone & Jewelry
- Top 10 Push Presents
- How To Shop For Christmas Jewelry Gifts
- How To Buy An Anniversary Band
Metal Education
Black Diamond Color
What is a natural black diamond?
Black diamonds, also known as carbonados and fancy black diamonds, are an impure form of polycrystalline diamond consisting of diamond, graphite, and amorphous carbon.
Natural black diamond chemical make-up
Natural black diamonds are a carbon isotope. This means that it possesses the same chemical elements as white diamonds, but has a different atomic weight. Moreover carbonados physical properties differ from white diamonds, which includes the number of inclusions and clusters of graphite. It is speculated that this is the reason why black diamonds are more difficult to cut than other colors.
How do natural black diamonds get their color?
Natural carbonados get their color due to an abundant amount of dark inclusions. They are usually microscopic concentrations of graphite, magnetite, hematite or native iron. These dark gems have a body color that may range from near-colorless to brown to olive green. Moreover, it is the concentration of cleavages and internal fractures stained black by graphitization that are responsible for the color.
Where are natural black diamond deposits?
Carbonados in nature are very rare. That sentiment goes for any other fancy colored diamond. Moreover, these dark gems are considered geological oddities, and are found in just a few locations in the world.
There are three locations where most natural black diamonds are found: Brazil, the Central African Republic, and Kamchatka, Russia. While there are many diamonds mined in big pits, most black diamonds are actually found in volcanoes, riverbeds, and other alluvial deposits.
How do lab black diamonds get their color?
During the lab formation process, diamonds are subjected to high-pressure, high-temperature. This process is meant to darken the lighter parts of the diamond. For carbonados, there are other methods used to darken the stone such as dyeing or irradiation.
How is a lab black diamond heat-treated?
Unlike their natural counterparts, color-enhanced black gems are often heated with low pressure, or exposed to radiation. This is because natural carbonados are difficult to cut and polish. Therefore, labs often irradiate industrial grade diamonds. This changes their color to appear black. Whereas, some other diamonds are heated to high temperatures while some are exposed to gamma rays in a nuclear reactor. When white diamonds are heat treated in a lab, their color can change to a dark green that appears black.

Are black diamonds real?
If you are wondering if black diamonds are real diamonds, the answer is yes and no. Technically, yes they are because chemically they are the same composition of the white diamonds we know and love. But alternately, no. This is because the color is often not naturally achieved.
For the process of heat treatment scientists essentially “create” graphite inclusions. No matter which treatment method is used, a carbonado ring is a beautiful alternative to the traditional white diamonds. Remember, you can confidently say black diamonds are real diamonds, even if it’s a heat-treated stone.
How is black diamond (natural and simulated) graded for color?
Due to their dark color, black diamonds cannot be graded for color the same way a white diamond would. Whether it is natural or simulated in a lab, it is important to do your research on the origin of the stone and how it was colored.
If it is natural, ask about a Colored Diamond Identification and Origin Report. If it is created in the lab, be sure to ask how the diamond got its color from your jeweler. Poor quality black diamonds can be painted black, whereas a higher quality stone will be treated with irradiation and heat.
With Clarity only offers AAA quality gemstones. Some of which are treated through standard heat. Gemstones are heat-treated to achieve a color and finish that will truly shine and last. Heat treatment is permanent. Moreover, heat-treatment lets gems achieve a higher color and clarity grade. That goes on to say, most gemstones used in jewelry are heat treated. If you’re curious about dark gems, With Clarity offers certified black diamond engagement rings.