RETAIL & FASHION LUXURY

Digital Report - immediate delivery to your email.

Date of Publishing: June 2025.
No. of Pages: 125.

Contents:
1. Structures Behind the Spectacle: A Review of Optical Effects in Phenomenal
Gemstones and Their Underlying Nanotextures Shiyun Jin, Nathan D. Renfro, Aaron C. Palke, and James E. Shigley.

Provides a comprehensive summary of the special optical effects in gemstones, including
opalescence, chatoyancy, asterism, schiller, and iridescence, and investigates the submicron inclusions and nanotextures in each type of phenomenal stone.

2. Lab Notes
Unusual patterns in diamonds • Gold-plated gold • CVD-grown diamond with unusual
cause of greenish color • HPHT-processed natural and laboratory-grown diamonds with
counterfeit inscriptions • Three large natural hollow Pinctada radiata pearls • Imitation
seed pearl with blue X-ray fluorescence • Pezzottaite with multiple cat’s-eyes • Quartz
assemblage imitating emerald.

3. G&G Micro-World
Anatase “dandelion” in agate • Diamond within a diamond within a diamond
• “Goose bumps” on South Sea pearl • Iridescent pen shell • Colorless danburite crystals
in phenakite from Myanmar • Lithiophilite in quartz • Monazite in quartz • Mystery
pebbles in quartz • Rutile star in quartz • “Sugar plum” in titanium-diffused blue
sapphire • “Soap bubbles” in yellow sphene • Quarterly Crystal: Unique phantom in
diamond.

4. Colored Stones Unearthed
Describes the geology, mineralogy, and formation of granitic-composition pegmatites and
provides a summary of their worldwide occurrences.

5. Gem News International
Emeralds and beryl from Kazakhstan and Ukraine • Unique trapiche grossular from
China • GIA 7 Pearl Value Factors: An update on nacre classification • Exceptional nacre
thickness of hybrid akoya bead cultured pearls • Iridescent gems cut from hinge ligament
of South Sea pearl oyster • Neptunite inclusions in rare poudretteite • New väyrynenite
production from Nigeria • Multilayered labratory-grown diamond • Diamond trader
Ishaia Gol • Diffusion-induced blue spinel-like layer on natural sapphire.

6. In the Spotlight: Ben Kho: From Rough Beginnings to Brilliant Mastery Jennifer Stone-Sundberg.