San Diego’s Gemstone History
Some of the most beautiful gemstones in the world have come out of Southern California, and San Diego has a rich mining history. In 1842, six years before the California gold…
A Clear Guide to Gemstone Treatments
Opal is for October
“The Earth writes its memoir in each opal.” – Anonymous Opals are arguably the most captivating and enticing gemstone. Filled with colorful mysteries, opal is an exemplary birthstone for October.…
The Enchanting Ruby: A Glimpse into Their History & Symbolism
As the birthstone for July, rubies have long fascinated people with their striking red color and deep meanings. Often referred to as the “king of gemstones,” rubies represent love, passion,…
The Hidden Value of Inherited Jewelry What Heirs Often Overlook—and How an Appraisal Reveals It
What Heirs Often Overlook—and How an Appraisal Reveals It Inheriting jewelry can be emotional. A ring, necklace, or watch may carry deep family meaning—yet its true value is often unclear. Many heirs…
How Appraisers Assess Condition: Grading for Gemstones, Jewelry, and Watches
When our clients hear the word condition, it often sounds subjective or something based on appearance or personal judgment. In professional gemological appraisals, however, condition assessment is a structured, methodical process…
What Should You Do When You Inherit Jewelry or Watches?
What Should You Do When You Inherit Jewelry or Watches? Inheriting jewelry, gemstones, or watches from a loved one can be meaningful and often overwhelming. Alongside the emotional value, there…
Birthstones: From One Stone Per Month to Multiple Modern Options
Birthstones are one of the most enduring traditions in fine jewelry. For centuries, they have symbolized identity, personal milestones, and meaningful connections. Yet many people are surprised to learn that…
Lab-Grown vs. Natural Diamonds: Appraisal Differences Explained
When it comes to determining the value of a diamond, one of the most common questions we hear at San Diego Gemological Laboratory is: “Are lab-grown diamonds appraised differently than natural…
A Clear Guide to Gemstone Treatments
A Clear Guide to Gemstone Treatments When shopping for colored gemstones, many buyers are surprised to learn that not all stones were exactly as they appear in jewelry displays when…
