Learn more about the world of Diamonds. From the 4C's to gift guides, our goal is to help guide you to finding the perfect piece of jewelry.

Selecting the Perfect Engagement Ring

Find out more about the different styles of engagement rings in order to pick the perfect one. From vintage to modern and halo to solitaire, this guide will help you find the style and shape best suited for your love.

Diamond Essentials - The 4C's

Learn all about the 4C's and how they can help you select the perfect diamond. Cut, color, carat and clarity will explain the process of how a diamond is graded from start to finish.

Diamonds in Depth

This advanced education page will go further into detail about the history of diamonds and the science behind the industry's past, present, and future.

How a Diamond Finds It's Brilliance

Diamonds are meant to sparkle and shine. From cut to mounting, we will explain the processes a diamond has to go through in order to shine at its maximum capacity.

Select the Perfect Wedding Band

Whether you want to match your band to your engagement ring or choose to buy something more ornate, we will help you find the right match for both you and your partner.

Judging Jewelry Craftsmanship

The quality of jewelry craftsmanship is in the details. We take a closer look at the small differences that add up to true heirloom quality jewelry that will be enjoyed for generations.

Precious Metals Education

Read more about the differences between white gold, gold, platinum, and palladium to make an informed decision about which metal is right for you.

Gemstones Education

Here you will learn everything you need to know about gemstone jewelry. From Ruby to Sapphire, this section will help you find the ideal stone for your taste and budget.

Find A Ring That Suits Her Style

From solitaire to halo to three-stone, this guide to the most popular ring styles and the women who love them will help you make the right choice of engagement ring setting for a ring she’ll love forever.

Hearts & Arrows Diamonds

If you want the highest possible level of diamond craftsmanship, you want a Hearts & Arrows Diamond: a diamond cut with such precise symmetry that it displays a distinct pattern under a special viewer, demonstrating its superior light performance.

RockHer Brilliant Cushion Diamond

The RockHer Brilliant Cushion is a square cushion that’s brilliant cut to ideal proportions with so much precision it is noticeably whiter and brighter than both the standard cushion brilliant and the standard modified cushion brilliant.

Take the Diamond AI Challenge

Match with ROSI, our diamond-picking algorithm based on IBM's Watson.Find the best diamond you can from any site or store and then take our challenge. Then challenge ROSI to run the numbers and find you a more beautiful diamond that's a better value too.

Learn How We Make Your Ring From Scratch

At RockHer, we make each ring we sell from scratch to fit both your diamond and your finger. Making your ring to order in our Los Angeles workshop means we can tailor every detail to fit you and your diamond perfectly.

Understanding the Diamond Color Scale

Today it’s hard to imagine buying diamonds without the 4Cs, the handy mnemonic device GIA created to describe diamond quality, and the familiar diamond color grades. But the diamond color scale is a relatively recent invention created in the 1950s by the Gemological Institute of America.

Understanding Diamond Carats and Diamond Size

The first thing we notice about a diamond engagement ring is its size. But diamonds are sold by weight, not size. Diamond carats are a unit of gem weight that’s equivalent to one-fifth of a gram. In other words, a five-carat diamond weighs one gram.

Diamond Fluorescence and Value

Diamond fluorescence is one of the most controversial aspects of diamond quality and value. It’s bad for diamonds. Except for when it’s good. It makes a diamond worth less. Except for when it makes it worth more.

What is the Difference between Diamonds and Diamond Simulants

When is a diamond not a real diamond? When it’s a diamond simulant! These pretenders do their best to imitate the look of a diamond but are much less valuable. Some do a much better job of simulating a diamond. Here’s what you need to know about the most common diamond imitations.

What Makes a Diamond Sparkle?

Icy white. Transparent as water. Harder than nails. Billions of years old. Diamonds are the most sought after gems on earth. But what really makes a diamond special is the way it handles light. That’s what makes diamond the king of bling. Nothing is as brilliant as a diamond. So what makes a diamond sparkle?

What You Need to Know About Buying Black Diamonds

Even if you know a lot about diamond quality, buying a black diamond is almost as opaque and mysterious as the inky gems themselves.In almost every way, black diamonds are the opposite of traditional colorless diamonds. They are colorless diamond’s goth cousin: dark instead of bright. Colorless diamonds are for everyone. Black diamond engagement rings are for women who aren't like anyone else: rebels, iconoclasts, and trendsetters.

Why Are Diamonds Expensive?

There’s no doubt about it. Diamonds are expensive. Diamonds cost more than gold or platinum. A lot more. So why are diamonds so expensive? I know there are a lot of blog posts out there saying that it’s all a conspiracy by big bad De Beers and jewelers who mark up diamonds 200%. I hate to break it to you but neither one of those things are true.

Why Diamond Certification Doesn’t Exist And Why That Matters

Everyone tells you the same thing. Don’t buy a diamond without a certificate. You definitely need a certified diamond. What does it say on the diamond cert? Does your diamond have GIA certification? What’s on the GIA cert? There’s just one problem with all that good advice. There is no such thing as diamond certification.

Why You Need GIA Certification for Your Diamond

When you buy a house, it comes with a deed that details the measurements of your property. Your car has a title and registration. You also need documentation for your diamond engagement ring.

What are the Ideal Diamond Proportions?

Cut is the most important of the 4C's. The quality of a diamond’s cut is what makes it flash with brilliance, fire and scintillation and dance with light. Judging the quality of a diamond’s cut is the most complicated of the 4Cs too. It requires evaluating the way a diamond’s proportions, symmetry, and craftsmanship affect the way it sparkles.

Laser Drilled Diamonds (and Why You Should Avoid Them)

Diamonds without eye-visible inclusions are rare. So it’s not surprising that people have worked on ways to make diamonds with ugly inclusions look a little better. The most common way to treat diamonds to improve their clarity is by using lasers.

What Are D Color Diamonds?

When would you be happy to receive a D grade? When you’re grading the color of your diamond, of course! D is the highest colorless diamond grade and the ultimate colorless gem. D color diamonds are the pinnacles of icy colorless perfection. Why do we say colorless diamonds and not white diamonds? Colorless diamonds are transparent like water, not reflective like a white paint chip.

What Are E Color Diamonds?

Colorless, icy, and bright, E color diamonds are almost at the top of the standard diamond color scale. If you think of diamond color grades as a mountain, the pinnacle belongs to D-color diamonds, the rarest of the rare. E-color diamonds are also rare, also colorless, just, you know, not quite as much. You might think that means they are often overlooked. You would be wrong.

What Are F Color Diamonds?

F-color diamonds are in demand because they are colorless: the most common (and most affordable) of the truly colorless diamond grades.

What Are H Color Diamonds?

If you have an unlimited budget, buying a diamond is easy: just get a 15-carat D Flawless in your favorite shape. Done. For the rest of us, it’s a balancing act: where do you compromise to get the best possible diamond for your budget?

What Are I Color Diamonds?

Diamonds in the near-colorless part of the D-to-Z diamond color scale, are in the Goldilocks zone of diamond color: not too expensive like D, E & F colorless diamonds, but not noticeably off-white like K,L & M faint color diamonds. The value that near-colorless diamonds represent is just right.

What Are J Color Diamonds?

If you want a classic colorless white diamond, you probably are shopping in the near-colorless section of the standard D-to-Z diamond color grading scale. Near colorless diamonds have color grades of G, H, I and J.

What Are K Color Diamonds?

If you’ve been researching diamond quality online, you probably haven’t read many experts recommending K color diamonds. There’s a good reason for that. Because K-color is categorized as a diamond with faint color, it won’t be mistaken for a colorless diamond like a G or H color grade might.

What is a SI1 Diamond Clarity Grade?

We’ve certainly seen SI1 clarity diamonds that are beautifully eye clean. But we’ve also seen many that have inclusions you can see with your naked eye. And that’s the dilemma of SI1 diamonds in a nutshell: sometimes they are a great value and sometimes they are disappointing. That’s why we hesitate to recommend that you buy one.

What is a SI2 Diamond Clarity Grade?

Here’s where it can start to get ugly. In general we don't believe that paying a premium for high diamond clarity grades is worth the trade-off. But we have to draw the line somewhere. And that line is generally in the middle of SI2 clarity.

What is a VS1 Diamond Clarity Grade?

The best Very Slightly Included diamonds, that is diamonds with a VS1 clarity grade, have a lot of fans. Why? They don't have any inclusions that you can see with the naked eye. And yet they are much more affordable than diamonds with an IF or VVS clarity grade.

What is a VVS1 Diamond Clarity Grade?

Diamonds are earth’s hardest substance: brilliant transparent crystals that are close to perfect. So close to perfect, in fact, that the tiny imperfections that distinguish them from one another are often so small that they can only be seen under magnification.

What is a VVS2 Diamond Clarity Grade?

Inside every diamond are microscopic time capsules: crystals from the deep earth, tiny cleavages from the pressure, and atoms trapped with the diamond when it formed billions of years ago.

What is an IF Diamond Clarity Grade?

It’s not easy being a diamond. After forming deep within the earth under tremendous heat and pressure and then riding a volcano of molten rock 100 miles up to the earth’s surface, you are going to show your age. Especially when your age is a billion years or so.