How to Tell Diamond from Moissanite: Tips for Distinguishing the Sparkle

Diamonds and Moissanite are both popular choices for jewelry, but they have distinct characteristics. This blog post will guide you through the key differences between diamonds and moissanite, so you can make an informed choice.

Understanding the Basics


Natural minerals called diamonds are created at extreme temperatures and pressures deep under the Earth. They are well-recognized for their durability and brightness and are the toughest known natural materials. Due to their exceptional rarity and brilliance, they have been prized for millennia.

What is Moissanite?

Moissanite is a gemstone composed of silicon carbide. It was first discovered in 1893 by Henri Moissan in a meteor crater. Today, moissanite is primarily lab-grown, making it an eco-friendly and less expensive alternative to gems. It’s known for its high refractive index and durability.

Visual Differences

Sparkle and Brilliance

One of the most noticeable differences between diamonds and moissanite, especially when considering the best Moissanite rings, is the way they sparkle. Diamonds exhibit a unique interplay with light, reflecting it in three distinct ways: brilliance, which emits a captivating white light; dispersion, which showcases stunning rainbow colors; and scintillation, creating a mesmerizing sparkle. On the other hand, it boasts a higher refractive index than gems. This higher refractive index is what gives moissanite its distinctive and enchanting feature – fiery, rainbow-colored flashes that are particularly eye-catching.

Color and Clarity

A scale from D (colorless) to Z (light color) is used to grade diamonds, with colors ranging from colorless to yellow or brown. Although moissanite is nearly colorless under most light conditions, it can have faint green or yellow undertones. Since it is manufactured in a lab, its clarity is typically near-flawless, whereas gems have natural inclusions.

Testing Methods

Using a Loupe

A jeweler’s loupe is a small magnification device used to examine gemstones. When examining stones under a loupe, you may see small inclusions or imperfections. On the other hand, they will usually appear flawless due to their lab-created origin.

Professional Testing

There are specific tools like the tester that measure thermal conductivity to differentiate between diamonds and moissanite. They conduct heat differently than moissanite, making this a reliable method for professionals to distinguish between the two.

Price and Value


Price and value play a significant role in the decision-making process when it comes to choosing between gems and moissanite for your jewelry. Understanding the differences in cost and long-term value is crucial for making an informed choice.

Here are some key points to consider:

  • Cost Comparison: Diamonds are generally more expensive than moissanite. The price of a stone varies based on its cut, color, clarity, and carat weight, making it a substantial investment. On the other hand, it is more budget-friendly, offering a similar aesthetic appeal without the hefty price tag.
  • Long-Term Value: Gems have a long history of holding their value and, in some cases, appreciating over time. They are often considered not just a beautiful accessory but also an investment. While beautiful and durable, it doesn’t typically hold its value in the same way as stones do.
  • Budget-Friendly Options: If you have a limited budget but still desire a stunning and sparkling gemstone, this is an excellent choice. You can achieve the look of a more expensive diamond without the financial strain.
  • Flexibility: Affordability allows you to choose a larger stone or invest in intricate settings without breaking the bank, giving you more flexibility in designing your dream jewelry.

While diamonds may have a higher initial cost and potential long-term value, moissanite offers a more budget-friendly alternative with its unique charm and brilliance. Your choice ultimately depends on your budget, preferences, and whether you view your jewelry as an investment or a beautiful adornment.

Ethical and Environmental Considerations

Diamond Sourcing

The mining of diamonds has been associated with various ethical and environmental concerns, including labor issues and ecological damage. The industry has made strides in recent years with the introduction of conflict-free gems and ethical sourcing practices.

Moissanite’s Eco-Friendly Nature

Moissanite is lab-created, which means it has a significantly lower environmental impact compared to mined diamonds. It also avoids the ethical issues associated with diamond mining, making it an attractive choice for eco-conscious consumers.

Personal Preferences and Lifestyle

Style and Personal Taste

Choosing between a diamond and a moissanite often comes down to personal preference. Some may prefer the traditional and timeless appeal of diamonds, while others might be drawn to the unique sparkle and eco-friendly aspect of moissanite.

Consider Your Lifestyle

Your lifestyle should also play a role in your decision. If you’re looking for a hard-wearing stone that can withstand daily wear and tear, both diamonds and moissanite are excellent choices. However, if budget is a concern, moissanite offers a more affordable yet equally beautiful alternative.

Caring for Your Diamond or Moissanite Jewelry


Caring for your diamond or moissanite jewelry is essential to ensure its lasting beauty and longevity. Both gemstones are durable, but proper maintenance is key to preserving their sparkle and brilliance.

Here are some valuable tips on how to care for your precious jewelry:

Cleaning and Maintenance:

  • Regularly clean your jewelry with a mild detergent and a soft brush to remove dirt, oils, and grime that can dull its shine.
  • Rinse the jewelry with warm water and pat it dry with a soft, lint-free cloth.
  • Avoid using harsh chemicals or abrasive materials, as they can damage the settings and gemstones.


  • When not wearing your jewelry, store it in a fabric-lined jewelry box or pouch to prevent scratches and damage.
  • Keep individual pieces separated or use jewelry organizers to avoid tangling and friction between pieces.
  • Diamonds, while incredibly hard, can still chip or scratch other diamonds, so proper storage is crucial.

Regular Inspections:

  • Periodically have your jewelry inspected by a professional jeweler to check for loose settings or signs of wear.
  • Promptly address any issues to prevent potential problems and ensure that your gemstones remain securely in place.


In conclusion, while diamonds and moissanite may look similar at first glance, they have distinct differences in terms of sparkle, color, clarity, price, and ethical considerations. Understanding these differences will help you make an informed decision that aligns with your values, budget, and style preferences. Whether you choose the timeless elegance of a diamond or the modern appeal of moissanite, both stones offer their unique brand of beauty and durability.