Article Search Results

Show Filters
Showing 15 results for "*"
Rough CLIPPIR diamonds
The Very Deep Origin of the World’s Biggest Diamonds

Explores an exceptional family of diamonds, referred to as “CLIPPIR” (Cullinan-like, Large, Inclusion-Poor, Pure, Irregular, and Resorbed), that formed in a superdeep environment.

Read More

A diagram uses four rulers to show how color, clarity, cut and carat weight are measured.
Article
Diamond Quality: A Short History of the 4Cs

You’ve heard about the 4Cs of diamond quality (color, clarity, cut, carat weight). But how did they become so well-known? Here’s a little diamond history.

Read More

Article
Is Another 1,000 (or 3,000) Carat Diamond Around the Corner?

Find out why the number of very large diamonds entering the market has increased sharply in the last few years.

Read More

Couple Engagement Ring Shopping
Article
How to Purchase the Perfect Diamond Engagement Ring

Follow these tips to pick out the perfect engagement ring for the love of your life.

Read More

The 14.62 ct. emerald cut Fancy Vivid Blue Oppenheimer diamond is flanked by diamonds in a ring setting.
Article
Spring 2016 Auction Update: Big Checks – Mega Diamonds

Big diamonds – really big ones – dominated the news in May, setting sales records for colorless and colored beauties.

Read More

Article
January Outlook: Rough Diamond Supplies Up, Prices Down

The trade grappled with soft prices and excess inventories in 2015, but holiday sales helped reduce diamond inventories. Plus: China retail report.

Read More

Indian necklace
Article
Jewelers to the Maharajas of Jaipur and Modern-Day Moguls

Enter a world not well-known in the West—the world of the maharajas and their jewelry, coveted by the modern-day moguls of business, entertainment, and royalty. See the fantastic works of art made today in the form of enameled Kundan meena jewelry and the regal look of polki diamonds.

Read More

Article
‘Dreams of Diamonds’ Book, Exhibit Celebrate Spectacular Gems

Explore the wondrous world of diamonds in this large book (33 pounds and three feet wide when open) – and gallery from a past exhibit – that reveals their detail and beauty.

Read More

Very Large Rough Diamond

A report on a 1,138 ct rough diamond, possibly the largest ever examined by GIA.

Read More

The Changma Diamond District, Mengyin, Shandong Province, China

One of China's most important discoveries to date is the Changma kimberlite district in Shandong Province.

Read More