How to Distinguish Natural vs Lab Grown Diamonds | Trishul Gems

Posted by

Deepak

July 27, 2026

On July 15, 2026

The jewelry market has evolved drastically in recent years, presenting buyers with a modern dilemma: should you buy a natural diamond or a lab-grown one? To the naked eye, they look absolutely identical. They share the same optical, chemical, and physical properties. However, their origins, value retention, and astrological significance are worlds apart.

If you are looking to make a high-value purchase, knowing what you are buying is critical. As Mumbai’s premier gemologists since 1997, Trishul Gems is here to break down the science and help you understand exactly how to distinguish between a natural diamond and its lab-created counterpart.

1. Understanding the Origins

Before comparing them, it is essential to understand where both types of stones come from.

Natural Diamonds: Forged deep within the Earth’s mantle over billions of years under extreme heat and pressure. They are delivered to the surface through deep volcanic eruptions. Because they are marvels of nature, they carry profound cosmic and astrological significance in Vedic astrology.
Lab-Grown Diamonds (CVD/HPHT): Created in highly controlled laboratory environments in a matter of weeks. Using High Pressure-High Temperature (HPHT) or Chemical Vapor Deposition (CVD) methods, scientists replicate the natural growing process.

2. Can You Tell the Difference by Looking at Them?

The short answer is no.

Because lab-grown diamonds are essentially pure carbon—just like natural diamonds—they will test positive on standard diamond testers that measure thermal or electrical conductivity. You cannot distinguish them by looking at their sparkle, using a magnifying loupe at home, or even using a basic diamond pen tester.

To tell them apart, highly advanced gemological equipment is required to analyze their internal structure at a microscopic level.

3. The Professional Differences: Natural vs. Lab-Grown

Here is how expert gemologists and laboratories differentiate between the two:

Feature	Natural Diamonds	Lab-Grown Diamonds
Nitrogen Presence	Most natural diamonds contain trace amounts of nitrogen, which gets trapped during their billion-year formation.	Lab-grown diamonds generally lack nitrogen. Gemologists use specialized machines to test for this absence.
Type of Inclusions	Natural stones have unique, organic inclusions (like tiny crystals or “feathers”) that act as nature’s fingerprint.	HPHT diamonds may contain metallic flux inclusions (iron, nickel, or cobalt) from the growth process. CVD diamonds might show unique strain patterns under UV light.
Growth Patterns	They grow in an octahedral (eight-sided) shape, resulting in specific growth lines.	HPHT diamonds grow in a cuboctahedron shape. CVD diamonds grow in parallel layers. Advanced imaging reveals these distinct growth patterns.
Value & Resale	Natural diamonds have historical, intrinsic value. They retain their worth and are considered long-term investments.	Because they can be mass-produced, lab-grown diamonds depreciate quickly and hold very little to no resale value.
Astrological Efficacy	Highly potent. Used in Vedic astrology to harness the positive energy of Venus (Shukra).	Zero astrological value. Lab-created stones do not possess the cosmic energy required for Vedic remedies.

4. The Only Foolproof Method: Independent Lab Certification

Since standard visual inspections fail to separate natural from lab-grown diamonds, the only 100% reliable way to know what you are buying is through an independent laboratory certificate.

Never purchase a high-value diamond or gemstone without an official grading report from a reputed institution like the GIA (Gemological Institute of America) or IGI (International Gemological Institute). A legitimate certificate will explicitly state whether the stone is “Natural” or “Laboratory-Grown.”

At Trishul Gems, transparency is our core principle. When you buy certified gemstones in Mumbai from us, you receive a verifiable, independent lab certificate with every precious stone, ensuring your investment is 100% secure.

Make an Informed Investment with Trishul Gems

Whether you are looking for an engagement ring or a powerful astrological remedy, you deserve to know exactly what you are paying for. At Trishul Gems, we specialize exclusively in 100% natural, earth-mined diamonds and gemstones.

Shopping locally? Visit our premium showroom at Opera House, Girgaon—just minutes away from the busy Zaveri Bazaar gemstone market—for a peaceful, transparent buying experience.
Not in Mumbai? You can safely and securely buy natural gemstones online with our 100% insured Pan-India and global shipping.

Don’t leave your investment to chance. Contact our expert gemologists today!

📞 Call / WhatsApp: +91 77100 75512

📍 Store Location: Trishul Gems, Opera House, Girgaon, Mumbai, Maharashtra 400004