《宝石与宝石学》(G&G) 2017 年冬季刊：库里南式超深层钻石，Dreher 家族艺术气息十足的精美宝石雕刻，以及基质匹配刚玉标准
《宝石与宝石学》(Gems & Gemology) 2017 年冬季刊摘要。
Suggested Reading on Rubies and Their Inclusions
Suggested Reading on Rubies and Their Inclusions
30-Year Marine Corps Veteran Fulfills Dream of Becoming a Field Gemologist
The rigors and often-harrowing conditions of gemology field expeditions are no match for 30-year Marine veteran with a love of gems.
An In-Depth Gemological Study of Blue Sapphires from Pailin, Cambodia
A report from GIA Laboratory in Bangkok analyzing 68 blue sapphires from Pailin, Cambodia.
Pre-Holiday Gem Orders ‘Encouraging,’ Mixed Results for Auctions
Dealers report good demand for affordable qualities, higher-end stones. Plus: Mixed results for first major auctions of the fall.
Retail Group Sees Good Holiday; Fancy Color Diamonds Cap Auction Season
Retail organization predicts that overall holiday spending will increase, citing a strong economy and rising confidence in employment and wages.
True Colors of “Dalmatian Jasper”
Discusses the mineralogical composition and provenance of this spotted decorative gemstone.
Saltwater Pearls from the Pre- to Early Columbian Era: A Gemological and Radiocarbon Dating Study
Examines 85 saltwater natural pearls, reportedly harvested from the Caribbean islands off the coast of Venezuela during the early 16th century, to determine their age.
Growth Tube Cluster in Sapphire
Surface-reaching growth tubes in a sapphire provide insight into the gem’s origin and treatment history.
“Flower in the Rain” Inclusion in Sri Lankan Sapphire
A growth blockage/fluid inclusion combination in a blue sapphire from Sri Lanka resembles a bloom in a rainstorm.
Photoluminescence Spectra of Emeralds from Colombia, Afghanistan, and Zambia
Compares PL spectroscopy data of 48 emerald samples from three countries to evaluate the usefulness of the technique in geographic origin determination.
Observations on HPHT-Grown Synthetic Diamonds: A Review
Summarizes statistical data and distinctive features of several thousand gem-quality HPHT synthetic diamonds examined by GIA from 2007 through 2016.
Colombian Emerald Industry: Winds of Change
A firsthand look at Colombia’s emerald mines and the cutting and trading industry in Bogotá.
Update on Mozambique Ruby Mining and Trading
Current activity and production at various sites around Mozambique are reported.
Synthetic Star Sapphires and Rubies Produced by Wiede’s Carbidwerk, Freyung, Germany
Details the process used by Wiede’s Carbidwerk to produce star synthetic corundum from the mid-1950s through the 1970s.
Quarterly Crystal: Barite in Fluorite
A fluorite specimen hosts two eye-visible, prominent white barite inclusions.
Hematite in Quartz: “A Rose by Any Other Name”
A quartz cabochon hosts an unusual rose-shaped hematite inclusion.
Blue-Green Pyrope-Spessartine Garnet with High Vanadium
Garnets with a unique color and a previously unreported chemical composition are examined at GIA’s Carlsbad lab.
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