Trapiche-Type Emeralds from Pakistan
Growth pattern observed in a trapiche-type emerald from Swat, Pakistan. The slice shows two colorless cores and two intermediate lighter green...
Dramatic Color Zoning in Alexandrite
Figure 1. The 8.55 ct alexandrite in daylight (left) and incandescent light (right). Photos by Nuttapol Kitdee.
Blue Inclusion in Rock Crystal Quartz
Figure 1. This 118.16 ct polished modified cube of rock crystal quartz contains an interesting tuft of blue needles, which may...
Unusual Violet Maxixe Beryl
Figure 1. This 26.72 ct Maxixe beryl has an unusual violet color. Photo by Diego Sanchez.
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Tree in Rock Crystal Quartz
Figure 1. This 80.60 ct rock crystal quartz cabochon contained an interesting tree-like metal sulfide inclusion. Photo by Robert Weldon.
MARCH BIRTHSTONE
Aquamarine and bloodstone, March’s two birthstones, are very different when it comes to appearance, but they share a similar reputation for...
Lucky Stones For Zodiac Signs
Aries – Diamonds and Bloodstone
Aries has two lucky stones, Diamonds and Bloodstone. Jewels are the hardest gemstone of...
Oiled Spinel
Figure 1. Bojan brand “King Ruby Red Oil” from Chanthaburi, Thailand, along with a parcel of rough Thai rubies purchased by...
Blue Spodumene
Figure 1. This 29.59 ct spodumene with light blue color is quite rare. It has been reported that exposure to sunlight...
Spinel on Sapphire
Figure 1. This 4.8 cm pale blue sapphire crystal contained numerous purple spinel crystals on the surface. Photo by Angelica Sanchez;...
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RAPAPORT... Petra Diamonds’ sales accelerated in the past fiscal year as the market improved and discoveries of high-value stones paid off.
GIA Spots Synthetic Ruby with Filling Treatment
RAPAPORT... The Gemological Institute of America (GIA) has identified a laboratory-grown ruby filled with lead glass — a rare phenomenon, as the trade...
Belgium Diamond Trade Jumps in June
RAPAPORT... Belgium’s polished-diamond exports rose 58% year on year to $739 million in June as the industry continued to recover from last year’s...
