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Fancy Color Diamond

Dazzling brilliance. Captivating color. The planet’s most valued gems are fancy color diamonds.

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Radiant Cut

The radiant cutting style helps intensify a fancy colored diamond’s color.

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Beyond Z

Diamonds with more yellow than GIA’s Z grade are considered fancy color.

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Color is Value

Subtle color differences impact the value of a fancy colored diamond.

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Octahedral Form

Beautifully formed octahedrons might become collectors' treasures.

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Crystal Faces

Diamond crystal faces show cutters how to get the best weight retention.

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Uneven Color

The color in rough diamond might not be evenly distributed in the rough.

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Tools

Research

Cushion cut synthetic diamond
Article
Laboratory-Grown Diamonds: Demand Rises, Prices Fall

The proliferation of laboratory-grown diamonds into the market continues to dominate industry news. Plus: Natural Diamonds, Kimberley Process

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A pile of near-colorless HPHT synthetic melee
Article
Diamond Market Forecast: Declining Credit, Soft Prices and Lab-Grown Diamonds

Despite the generally strong year for jewelry retail, the diamond industry continues to face problems with credit, spotty demand and soft prices.

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Shoppers walk in a mall past a Chow Tai Fook jewelry store.
Article
Season’s Sales: US Up 4% to 5%, But China Continues to Lag

The U.S. holiday season saw strong sales, but China continues to struggle. Plus: diamond market report and lab-grown diamond sales.

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A large pear shaped yellow diamond hangs from a black cord and lies against red material.
Article
US Holiday Season Opens Well, Despite Volatile Markets

The U.S. holiday shopping season is looking positive, despite signs that an economic slowdown may be coming in 2019. Plus, more auction sales records.

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A large piece of rough, left, with a portion cut out of it, and six cut and polished diamonds produced from the cut out piece of rough.
Article
Chipping Away at 1,109 ct Lesedi La Rona

Graff reveals the first polished diamonds produced from the Lesedi La Rona, one of the largest pieces of rough ever mined. Plus, other market news.

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Three loops of diamond ribbons form a bow around a ruby framed by more diamonds.
Article
National Retail Federation Predicts a Cheery Holiday

The building blocks are in place for a strong 2018 U.S. holiday season. Plus, diamond market updates and upcoming auctions.

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Crowds of people on the trade show floor.
Article
Typhoon, Trade Wars and Currency Lows Dampen Hong Kong Shows

Business at the September Hong Kong Gem and Jewellery Shows was spotty, despite a strong world economy. Buyers left early to avoid Typhoon Mangkhut.

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Woman tries on a diamond ring on one side of the sales counter while a sales associate helps her and explains what she is looking at.
Article
Survey Shows: Diamond Sales Increased Last Year

Retail sales of diamond jewelry worldwide totaled an estimated US $77.5 billion in 2017, up from $74.6 billion in 2016, according to a survey by Tacy/Pharos Beam Consulting.

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Parallel bands of green color at room temperature.
Uncommon Parallel Color Zoning in a Chameleon Diamond

A diamond examined in the Carlsbad lab shows chameleon coloring in an unusual pattern.

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A pile of rough diamonds of various colors.
Article
Robust Demand Brings Increased Rough Diamond Sales

Demand for diamonds has been good so far this year. Rough sales have increased and large diamonds are being mined. Plus: Online sales tax changes.

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