When men and women really start looking into diamond grading, a common question is, “Why does the GIA color grade start with a D?” (more…)
When men and women really start looking into diamond grading, a common question is, “Why does the GIA color grade start with a D?” (more…)
Solitaire Setting
Solitaire Setting is a popular diamond engagement ring setting. The head secures the diamond. The prongs allow the diamond to catch the most light. A four-prong setting shows more of the diamond, but a six-prong setting is often more secure. (more…)
Sometimes the search for the perfect diamond grows into something deeper—a lasting interest in the jewelry and gems. If that’s happened to you, discover how GIA can guide your path toward a Graduate Gemologist (G.G.) or Accredited Jewelry Professional (A.J.P.) diploma, courses in gemology and jewelry arts, and a career in the industry. (more…)
Synthetic diamonds are grown in a laboratory and have essentially the same chemical composition and crystal structure as natural diamonds formed millions of years ago. In the last 30 years, gem quality synthetic diamonds have been grown in Japan, South Africa, Russia, Ukraine and the United States. Synthetic diamonds are generally produced using either High Pressure/High Temperature (HPHT) or Chemical Vapor Deposition (CVD). (more…)
When you oooh and ahh over a sparkly diamond, to a large extent you’re reacting to its cut. What you want is light to enter through the crown table (the flat part at the top) and go to the pavilion (the pointy part at the bottom), where it reflects from one side to the other, and then back out of the diamond through the crown table. This ensures maximum sparkle and brilliance. Think spectacular laser show! (more…)
Purchasing a diamond is a big step and finding the right one can be pretty intimidating. However, it doesn’t have to be. Before you make your purchase of a lifetime, make sure to ask the following 5 questions to your jeweler. (more…)
When your guy gets down on one knee and pops the question, you know what you want to see inside that little box. But does he? When it comes to engagement rings, even the most well-intentioned soon-to-be fiancé can use a little help. That’s where you come in—read on for 5 easy tips to getting the diamond you’ve always dreamed of. (more…)
Getting ready to pop the big question is undoubtedly one of the most memorable and exciting times of your life. At the same time, things can get pretty hectic as you consider everything that goes into such an important purchase. With some preparation beforehand, shopping for that one-of-a-kind ring will become a breeze. (more…)
The engagement ring’s romantic traditions resonate through time. The Romans first introduced the betrothal ring as a plain, iron hoop. Among the gentry, the iron ring was worn while indoors and replaced with the more valuable gold band when outdoors. As early as the 4th century AD, inscriptions, elaborate or as simple as “honey,” embellished the inside of the band. (more…)
All diamonds are rare and no two diamonds are alike. A diamond’s quality and rarity is determined by its unique combination of characteristics of Color, Cut, Clarity and Carat Weight. The International Diamond Grading System™, used around the world since its invention by GIA in the 1950s, is based on the Four Cs. (more…)
GIA does more than set the integrity standards in the gem and jewelry industry. We provide research, lab services and educate gemologists from around the world. In this 6-minute video, Bev Hori, GIA education director, explains the global impact of GIA, giving you a broader view of what we do in Carlsbad, CA. (more…)
As you’ve searched for the perfect diamond, you may have learned about high pressure/high temperature diamonds, or HPHT. These are diamonds that have been treated via temperature or pressure to look better than they were naturally. Jewelers are required to provide full disclosure on HPHT stones to their customers. (more…)