Diamond G Inc.

10/16/2026

One single element. A brilliant spectrum of colors.

Chromium is the coloring agent for some of the world’s most precious gemstones—producing everything from saturated reds to lush greens.

Here are the colors it creates in each gem:
- Emerald: Signature green, sometimes with contributions from vanadium.
- Ruby: Vibrant pinkish red to deep, saturated red.
- Jadeite: Saturated green, with the finest chromium-colored material known as imperial jade.
- Demantoid garnet: Bright, fiery green, which iron can shift toward yellow or brown.
- Tsavorite garnet: Lush green, often with contributions from vanadium.
- Chrome tourmaline: Intense, forest green, sometimes colored by vanadium as well.
- Chrome diopside: Rich, vibrant green. Even small differences in chromium concentration can noticeably shift the intensity of the color depending on the exact chemistry and structure of the stone.

How can one element lead to such a range of hues? It comes down to how chromium interacts with each gem’s unique crystal structure.

Learn more about must-know gems on our website: https://bit.ly/4hHf1ne

10/15/2026

10/01/2026

08/14/2026

Yellow gemstones radiate warmth, light and individuality—each with its own unique traits.

Yellow diamonds range from faint to vivid, offering exceptional brilliance, hardness and luster. Yellow sapphires display bright yellow hues with excellent durability and strong value—especially when untreated. Citrine spans a wide range from lemon yellow to deep orange and remains one of the most accessible options.

Golden topaz shows rich honey to golden hues with moderate brilliance and very good hardness. Heliodor, also known as golden beryl, is typically lighter in color, with a soft, luminous glow. Sphene is the softest gem in this group, but it stands out for its vivid yellow-green color and strong fire—often exceeding that of diamond.

From luminous glow to fiery brilliance, there’s a yellow gem to suit every taste and lifestyle.

Learn all must-know gemstones on our website: https://bit.ly/4ftq5EP

08/06/2026

Every natural diamond tells a story—and clarity helps reveal it. GIA diamond clarity grades describe the visibility of internal inclusions and external blemishes under 10× magnification.

Common inclusions include clouds, needles, pinpoints and feathers. Often, these are tiny crystals trapped during diamond formation or small fractures created by immense pressure deep within the Earth.

To determine a diamond's clarity grade, GIA evaluates the size, number, position, nature and relief of these characteristics, assigning a grade from Flawless to Included. Diamonds with clarity grades of VS2 and higher typically have no inclusions visible to the unaided eye. While Flawless and Internally Flawless diamonds are typically the rarest and most sought-after, inclusions are fascinating because they tell the story of a diamond's journey from deep within the Earth to the surface.

Learn more about diamond clarity on our blog: https://bit.ly/3RSQnqK

07/24/2026

From timeless to brilliant. Explore how diamond cutting has evolved through the centuries, shaping the sparkle we admire today.

07/23/2026

With its rich red color and centuries of lore, ruby is one of the world's most coveted gemstones. If you're shopping for July's birthstone, here are four factors to consider:

Color: The finest rubies display a vivid red color, known as “pigeon’s blood”, but rubies can range from pure red to purplish red and slightly orangy red. Some exhibit strong red fluorescence, even glowing in daylight.
Clarity: Inclusions are expected in natural rubies. They generally do not affect value unless they impact transparency, durability or overall appearance. Most rubies are heat treated, while others may be fracture-filled to improve clarity. Because treatments can affect value, be sure your ruby comes with a gemological report that identifies any potential treatments.
Cutting Style: Fine rubies are typically faceted to maximize color and brilliance. More heavily included material is often fashioned into cabochons, some of which display a six-rayed star known as asterism.
Carat Weight: Large, high-quality rubies are exceptionally rare, causing value to increase dramatically as size increases.

Learn how to choose a ruby that's right for you on our website: https://bit.ly/4foBeGK