Gemstone Guides

GIA, IGI HRD and Other Labs – Who to Trust When It Comes to Your Gemstone

Not all gem certificates are created equal. The value of a gemstone isn’t just in its color, clarity or size — it’s in the credibility behind its certificate. That’s why knowing who certified your ...

Why Certification Matters – Confidence You Can Hold in Your Hands

You don’t buy a gemstone every day. And when you do — you want to know what you’re really holding. That’s why certification matters. It’s more than a piece of paper. It’s an independent, profession...

Birthstones and Their Meaning – Gems That Belong to You

Some gemstones are chosen for their beauty.Others are chosen because they already belong to us — by birth, energy, or intuition.Birthstones carry more than color. They carry meaning.And whether you...

Understanding Gemstone Color

Color is what sells a gemstone -  What Your Eyes Feel Before Your Mind UnderstandsLong before clarity, weight or origin — your eyes catch the color. And your heart follows.But what exactly do we me...

Gemstone Density – Why It Matters and What It Tells Us

What Is Density (Specific Gravity)?Density is defined as the amount of mass per unit of volume. In gemology, we usually refer to it as specific gravity (SG), which compares the density of the gemst...

Understanding Gemstone Hardness – The Mohs Scale and Jewelry Durability

Gemstone hardness is one of the most important factors when choosing jewelry or investment stones—yet it’s often overlooked. Hardness determines how resistant a gem is to scratches, directly affect...

Conflict-Free & Ethical Sourcing – The Story Behind the Sparkle

Every gem has a story — not just of how it shines, but where it comes from. And in today’s world, that story matters more than ever.At Sosna Gems, we believe that true beauty begins with conscience...

Gemstone Origins & Rarity – The Power of Place

Two gems can look similar to the untrained eye — but their origin can mean the difference between rare and exceptional.In the world of fine gemstones, origin matters. It tells a deeper story: of ge...

Treated vs. Untreated Gemstones – What You Deserve to Know

Some are clouded, dull, or pale. Some carry visible fractures or uneven color.That’s where treatments come in — human efforts to improve what nature began.But not all treatments are the same. Some ...

What is a Natural Gemstone?

A natural gemstone carries the Earth’s story. Learn how to recognize true natural gems, which treatments are accepted, and why authenticity matters.

Carats Explained – ct vs K (Why a Carat Isn’t Always the Same)

Carat can mean two very different things: ct for gemstone weight and K for gold purity. Learn the difference, discover practical tips, and avoid common mistakes.