loose moissanite stone gemstones 1ct 6ct moissanite stone beads 10mm vvs1 excellent cut grade test positive diamonds with gra
Moissanite Stone Wholesale D Color Vvs1 Round Cut 0.1CT-12CT Moissanite Loose Stone Gemstone for Jewelry Making with GRA Report
1094.62 Руб.
844pcs Natural Chip Gemstone Beads for Jewellery Making Kits 15 Colors Irregular Shaped Loose Crystal Stone Beads for Healing Bracelets Necklace
0 Руб.
KNOBSPIN D VVS1 Moissanite Tennis Bracelet Original s925 Sterling Silver Plated 18k White Gold with GRA Bracelets for Women Man
2399.64 Руб.
Набор для маникюра «STONE CUT», с маслом, 9 предметов, в картонной коробке, разноцветный
440 Руб.
Wholesale AAA Natural Stone Beads Purple Tiger Eye Beads Stone Beads 4mm 6mm 8mm 10mm 12mm For Jewelry Making Bracelet Necklace
224.3 Руб.
Natural Stone White Moonstone Beads Round Loose Spacer Beads For Jewelry Making DIY Bracelet Necklace 6/8/10mm 15Inches
246.55 Руб.
Rogers Bruce, Kenny Nick The Complete Guide To IELTS with DVD-ROM and Intensive Revision Guide Access Code
2393 Руб.
Описание:
Unearth a treasure trove of knowledge of over 130 gemstones from around the world. Learn how gemstones are formed and how to recognise them by their unique qualities and colours. A wonderful book for beginners, students, and gemstone-enthusiasts that includes the latest scientific research and gemstone classification. Gemstones is filled with all you need to know about these fascinating minerals - cut and uncut stones, organic gemstones, and precious metals. Inside you'll find: - Fast facts for quick reference, including chemical composition, hardness, gravity, lustre, and reflective value - Photo close-ups of key details and highlights of distinguishing features - Illustrations of faceting and shapes popular for each gemstone - A detailed introduction to everything a beginner gemologist needs to know including how gemstones form, the different properties, crystal shapes, faceting, and the history of gems Delve into the one-of-a-kind characteristics, colours, and attributes of more than 130 gemstones with this compact visual guide. For easy classification, each stone's entry includes annotated photographs to highlight distinguishing features and concise details about the attributes of gems. Designed for beginners and experienced collectors alike, this gemology book explores what gemstones are, how they are classified, and how to identify them by their physical and optical properties. It also shows you how they were fashioned and imitated throughout history. Learn the differences between varieties of cut and uncut stones, organic gemstones, and precious metals. It includes a glossary for many more technical and scientific terms and over 800 high-quality photos of gems. It's the ideal gift for any budding gemologist.