Posts by G S SACHIN
Why Thermal Testers Fail on Moissanite—and What US Jewelers Use Instead
Jewelers across the U.S. still rely on handheld thermal testers every day. But those same testers routinely mistake moissanite for diam...
DEF vs Near-Colorless Moissanite: Will Your Setting Make the Tint Obvious?
Choosing between a DEF (colorless) moissanite and a near-colorless moissanite comes down to how the gem will look once it’s mounted. Co...
Moissanite’s “Rainbow Fire”: Gorgeous in Sunlight, Overkill Indoors? A Week-Long Test
Moissanite is famous for its "rainbow fire" — bright, colorful flashes that can make a ring look alive in sunlight. But people who wear...
Insurance for Lab-Grown in the US: Why Some Policies Cost Less (and When They Don’t)
Insurance for lab-grown diamonds and other lab-grown gemstones works the same way as insurance for natural stones in principle: you pay...
Lab-Grown Clarity Inflation? Comparing US Listings to What You See IRL
Lab-grown diamonds are now common in U.S. listings. They cost less than natural diamonds and offer larger-looking stones for the money....
Blue Nuance Panic: When a Lab-Grown Looks Cool Under Office LEDs
You’ve walked into the office under cool LED lights and your lab-grown diamond suddenly reads a faint, icy blue. It looks different fro...
Resale Reality in America: What Happens When You Trade In a Lab-Grown?
More Americans are buying lab-grown diamonds. They cost less than mined stones and let buyers get larger sizes for the same budget. But...
Post-Growth Treatment: The Lab-Grown Fine Print US Buyers Miss
Lab-grown diamonds and gemstones are often sold on price and ethics. That makes them attractive. But many buyers miss an important deta...
HPHT vs CVD: Can You Spot the Growth Lines With a Phone Light?
Can you tell an HPHT diamond from a CVD diamond using only your phone light? Short answer: sometimes you can spot clues, but you usuall...
Why Some GIA “Excellent” Stones Still Look Dull in Your Kitchen
You bought a diamond graded “Excellent” by GIA and expected fireworks. Instead it looks flat under your kitchen light. That happens mor...
