You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
A QUARTERLY SPOTLIGHT ON COLOURED GEMSTONES NOVEMBER <strong>2021</strong><br />
70 RED CARPET<br />
COLLECTION<br />
COLOUR<br />
FOCUS<br />
THIS MONTH<br />
Orange<br />
&<br />
Yellow<br />
Who stole the<br />
show with this<br />
vintage citrine<br />
cuff?<br />
Turn to page<br />
70 to find out.<br />
Index<br />
COLOUR INVESTIGATION FEATURE<br />
Sunlight & flames<br />
<strong>Jeweller</strong> explores the captivating hues of orange and yellow<br />
gemstones, from the rich gold of topaz to mandarin garnet,<br />
fresh citrine, and smouldering fire opal.<br />
62<br />
63<br />
70<br />
IN DEPTH<br />
Dive into gem trivia<br />
COLOUR INVESTIGATION FEATURE<br />
Sunset magic<br />
RED CARPET COLLECTION<br />
This month’s colours dazzle<br />
Topaz<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
NOVEMBER BIRTHSTONE<br />
Neosilicate<br />
Sanskrit tapaz, meaning fire<br />
8<br />
1.62–1.63<br />
Heat, irradiation, coatings<br />
Yellow and golden orange (among<br />
others)<br />
QUICK PROFILE<br />
8 Popular<br />
Orange<br />
& Yellow<br />
Gemstones<br />
Spessartite Garnet<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Garnet<br />
Named after Spessart, Germany<br />
6.5–7.5<br />
1.79–1.82<br />
None<br />
Light orange to reddish orange-brown<br />
Heliodor (Yellow Beryl)<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Yellow Zircon<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Citrine<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Beryl<br />
Ancient Greek helios, meaning sun,<br />
and doron meaning gift<br />
7.5–8<br />
1.57 – 1.58<br />
Heat, irradiation<br />
Yellow, yellow-green, golden-yellow<br />
Neosilicate<br />
Persian zargun, meaning gold-hued<br />
7.5<br />
1.93–1.99<br />
Heat<br />
Yellow to orangey-red (among others)<br />
NOVEMBER BIRTHSTONE<br />
Quartz<br />
Old French citrin, meaning<br />
lemon-coloured<br />
7<br />
1.54–1.55<br />
Heat<br />
Yellow to deep orange-red<br />
HONOURABLE<br />
MENTIONS<br />
• Carnelian<br />
• Chrysoberyl<br />
• Danburite<br />
• Yellow & Orange<br />
Diamond<br />
• Yellow & Orange<br />
Sapphire<br />
• Yellow & Orange<br />
Tourmaline<br />
Fire Opal<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Golden South Sea Pearls<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Amber<br />
VARIETY<br />
ETYMOLOGY<br />
HARDNESS<br />
REFRACTIVE INDEX<br />
TREATMENTS<br />
COLOURS<br />
Silicate<br />
From its flame-like appearance<br />
6 – 6.5<br />
1.37–1.47<br />
Coatings, dyes<br />
Yellow to orange-red<br />
Carbonate<br />
Named for their colour and Pacific origin<br />
2.5 – 4<br />
1.52–1.69<br />
None<br />
Pale to rich gold<br />
Resin<br />
Likely Arabic anbar, meaning fragrant<br />
2 – 2.5<br />
1.54–1.55<br />
Heat, wax, dye, coatings<br />
Yellow to orange-brown (among others)<br />
LEARN ABOUT THESE GEMSTONES IN DEPTH: JEWELLERMAGAZINE.COM
Change language