Blog – Page 4 – San Diego Gemological Laboratory

The 4C’s of Assessing Diamond Quality

Grunwald April 11, 2024

In the late 19th century when diamond mining really began in South Africa, diamonds were referred to as river or water diamonds if they were colorless, and Cape diamonds if they were pale yellow. Diamonds were either made…

February Birthstone Highlight: Amethyst

Grunwald February 5, 2024

If you were born in February then you’re lucky enough to have the gemstone amethyst as your birthstone. Amethyst is a popular gemstone for its bright color, deep history, and…

How Appraisers Assess Condition: Grading for Gemstones, Jewelry, and Watches

Grunwald August 2, 2023

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…

Birthstones: From One Stone Per Month to Multiple Modern Options

Grunwald June 2, 2023

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…

The Hidden Value of Inherited Jewelry What Heirs Often Overlook—and How an Appraisal Reveals It

Grunwald March 28, 2023

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…

What Are the Properties of February’s Birthstone – Amethyst?

Grunwald February 28, 2023

Those born in the month of February are fortunate enough to have the gemstone amethyst as their birthstone. The gemstone amethyst is popular for its vibrant color, rich history, and…

Jewelry Appraisals for Divorce Settlements: What You Need to Know

Grunwald January 3, 2023

When jewelry is involved in a divorce, emotions can run high – but settlements require clear, objective facts. That’s where a professional jewelry appraisal becomes essential. An appraisal provides an independent, documented opinion…

What Should You Do When You Inherit Jewelry or Watches?

Grunwald August 15, 2022

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…

A Clear Guide to Gemstone Treatments

Grunwald April 4, 2022

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…

A Clear Guide to Gemstone Treatments

The 4C’s of Assessing Diamond Quality

February Birthstone Highlight: Amethyst

How Appraisers Assess Condition: Grading for Gemstones, Jewelry, and Watches

Birthstones: From One Stone Per Month to Multiple Modern Options

The Hidden Value of Inherited Jewelry What Heirs Often Overlook—and How an Appraisal Reveals It

What Are the Properties of February’s Birthstone – Amethyst?

Jewelry Appraisals for Divorce Settlements: What You Need to Know

What Should You Do When You Inherit Jewelry or Watches?

A Clear Guide to Gemstone Treatments

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