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Indonesian Gemstones

Map of Indonesia
Map of Indonesia

Indonesia is an exotic Southeast Asian nation which is best known for thousands of beautiful volcanic islands and tropical beaches, including Komodo Island; the only place in the world which is home to the komodo dragon. Among the wonders of Indonesia are rainforests where orangutan roam and turquoise waters, under which are colorful coral reefs. Once part of the Dutch East-Indies, Indonesia has enjoyed independence since 1949. Its fertile volcanic earth and plentiful rain yield a vast variety of produce, such as pungent durian, rice, coffee and cocoa. Beneath the earth are mineral resources and gemstone deposits, which include chalcedony, chrysocolla, diamond, garnet, idocrase, jasper, nephrite, obsidian, opal, prehnite, sapphire and quartz. Some of these are recent discoveries and others have been mined for many years. Organic gems found in Indonesia include pearls, petrified wood and amber.

Indonesia has a long history of gemstone use, proven by the discovery of bracelet-like objects in West Java. The ancient jewelry items made of jasper were thought to have been made around 3500 BC. The site of the find is called Mount Padang, and is a man-made pyramid that was thought to have been constructed during the Bronze Age. According to some, it may even be the oldest man-made structure in the world. The Indonesian gemstone industry is mainly concentrated in South Kalimantan on the island of Borneo. This is the largest island in Asia which is shared among the Kingdom of Brunei, Malaysia and Indonesia. It is said that Borneo was referred to by Indians as "Suvarnabhumi", which comes from Pãli language and means "Golden Land". In fact, there are gold deposits and small amounts of silver and platinum in Kalimantan, and in the southern island of Sumbawa. The largest gold mine is in the western province of Papua; the eastern part of which belongs to Papua New Guinea.

Indonesian Jasper Cabochons
Indonesian Jasper Cabochons

One of the most colorful stones found in Indonesia is jasper. It is an impure, opaque variety of quartz that can be found in almost any color, with stripes, spots or flamed patterns. Indonesian jasper cabochons are found in delicate neutral colors, eye-catching vivid colors, or dark masculine hues (see image, left). One bright yellow and black stone from Java is traded as "bumble bee jasper". However, this material is actually composed of volcanic lava and sediment, so is not jasper. The presence of sulfur gives it the vivid yellow colors. Another product of volcanic activity is obsidian; a volcanic glass. This is also found in Indonesia, especially mahogany obsidian, so-called because of its rich mahogany-colored streaks. It is often carved into cameos.

The village of Cempaka, and other villages near Martapura in South Kalimantan are sources for Indonesian gemstones and good quality diamonds have been found in Kalimantan for many years. During colonial times, the Dutch mined diamonds in this region, though mining was carried out almost a thousand years before this. In the 1920s, the diamond trade focused on South Africa, and in the 1940s, the Japanese invaded Indonesia. The Japanese Navy vessel, Ashigara, bound for Singapore, sunk in the Java Sea in 1945 after coming under attack by allied submarines. It is said that the ship was loaded with gold and possibly gemstones. In 1965, a 167-carat diamond was found in South Kalimantan and named the "Tri Sakti", which refers to the "Three Principles" of Indonesia; the nation, the religion and unity. The diamond yielded a 50.53-ct emerald-cut gemstone. Additionally, a rare, 3.02-carat blue diamond was found in 2006, which was named "The Chelsea Blue" and a 200-carat diamond was unearthed in 2008.

Jewelry Shop in Martapura
Jewelry Shop in Martapura

The town of Martapura is referred to as "the City of Diamonds" and is a center for gemstone trade and processing. The gemstone market there operates on Tuesdays and Saturdays. Like several other Southeast Asian gemstone sources, the deposits of Indonesia are alluvial, meaning that the minerals are deposited by flowing water. Thus, the main method by which gemstone materials are recovered is by excavating gem-bearing gravel which is washed and sifted to separate the gems from the gravel. This is done by digging shafts, by burrowing into hillsides or by recovering gravel-containing earth from riverbeds.

Naturally occurring pearls have been found in Indonesian waters for centuries, but these are exceedingly rare. The great demand for saltwater pearls makes farming pearls a worthwhile venture. Saltwater pearls, including Akoya, South Sea and Tahitian pearls, are cultured in Maluku Province; a group of islands in the southeast. There are also pearl farms in other areas, such as Sulawesi, Nusa Tenggara, Lampung and Papua. In fact, Indonesia is one of the world's most important producers of saltwater pearls, with a large share of the global market and a great deal of foreign investment in the industry, mainly from Japan and Australia. Another organic gemstone that is found in several parts of Indonesia, including Sumatra in Lampung Province, is amber. Amber is fossilized tree resin which is found in many regions of the world. Some of the amber from Indonesia is particularly interesting because rather than being completely golden in color, it exhibits blue fluorescence and is thus sold as "blue amber".

Indonesian Fossil Coral Gemstones
Indonesian Fossil Coral Gemstones

Agatized fossil coral is coral that has gradually been replaced by agate. This is not mined from the sea bed, where coral reefs are protected, but collected from the earth, where the ancient coral reefs have been thrust upward by tectonic activity. Fossil corals are found in Kalimantan, Sumatra and Java. They are sometimes kept as intact specimens, carved into ornaments or cut and polished into gemstone cabochons. Petrified wood is another example of a fossilized material found in Indonesia.

Over the last decade or so, the domestic Indonesian gemstone industry has expanded. Some Indonesians believe in the metaphysical powers of gemstones and enjoy wearing healing stones, such as amethyst, agate, idocrase, nephrite and chrysocolla. A piece of jewelry containing chrysocolla was said to have been worn by President Susilo Bambang Yudhoyono and he apparently gave a chrysocolla stone (known as "bacan" in Indonesia) to President Barak Obama during a visit, which further increased the popularity of colored stones in the country. In 2015, Indonesia was reported to have caught "gem fever", with gemstone jewelry being widely worn. Indonesian gemstones are also sold to tourists as souvenirs, in Bali and Java, as well as being exported, where they are traded all over the world. The center for gemstone processing and trade is in the capital, Jakarta. Indonesia's gemstones are as diverse and colorful as the culture, flora and fauna that thrive in the equatorial archipelago.

  • Première publication: 21 Juin 2016
  • Dernière mise à jour: 23 Janvier 2019
  • © 2005-2021 tous droits réservés.
    Reproduction (texte ou graphique), sans le consentement écrit de (SETT Company Ltd) est strictement interdite.
Plus de formes
Pierres précieuses populaires
  • Saphir
  • Émeraude
  • Rubis
  • Aigue marine
  • Zircon
  • Opale
  • Topaze
  • Tourmaline
  • Grenat
  • Améthyste
  • Citrine
  • Tanzanite
Toutes les pierres précieuses (141)
  • Actinolite Œil de chat
  • Agate
  • Agate Géode
  • Agate de Feu
  • Aigue marine
  • Amazonite
  • Ammolite
  • Améthyste
  • Amétrine
  • Andalousite
  • Andésine Labradorite
  • Apatite
  • Aventurine
  • Béryl
  • Béryl doré
  • Calcédoine
  • Charoïte
  • Chrysobéryl
  • Chrysocolle
  • Chrysoprase
  • Citrine
  • Clinohumite
  • Corail
  • Corail de Fossile
  • Cornaline
  • Dendritique Agate
  • Diamant
  • Diaspore Couleur Changeant
  • Diopside Chrome
  • Diopside Étoilé
  • Disthène
  • Druse d'améthyste
  • Druzy Azurite
  • Enstatite
  • Flocon de Neige Obsidienne
  • Fluorine
  • Fluorite avec changement de couleur
  • Grandidierite
  • Grenat
  • Grenat Almandin
  • Grenat Couleur Changeant
  • Grenat Démantoïde
  • Grenat Grossulaire
  • Grenat Hessonite
  • Grenat Malaya
  • Grenat Mali
  • Grenat Pyrope
  • Grenat Rhodolite
  • Grenat Spessartite
  • Grenat Tsavorite
  • Grenat Étoilé
  • Howlite
  • Hématite
  • Hémimorphite Druse
  • Idocrase
  • Iolite
  • Jadéite
  • Jaspe
  • Jaspe Sanguin
  • Kornerupine
  • Kunzite
  • Labradorite
  • Lapis-lazuli
  • Larimar
  • Malachite
  • Maw-Sit-Sit
  • Morganite
  • Nacre
  • Nuummite
  • Obsidienne
  • Oeil de Chat Aigue-Marine
  • Oeil de Chat Quartz
  • Oeil de Tigre
  • Oeil de Tigre Matrice
  • Oeil de chat Apatite
  • Oeil de chat Scapolite
  • Oeil de chat Sillimanite
  • Oeil de chat de la Pierre de Lune
  • Onyx
  • Opale
  • Opale Boulder
  • Opale Chocolat
  • Opale Doublet
  • Opale Noir
  • Opale de Feu
  • Opale en Matrice
  • Opale hyalite
  • Opale œil de chat
  • Perle
  • Pierre de Lune
  • Pierre de Lune Arc en Ciel
  • Pierre de Lune Étoilé
  • Pierre de Soleil Étoilé
  • Pierre de Soleil 
  • Pierre précieuse étoiles
  • Pierres précieuses Jade
  • Pierres précieuses de couleur changeante
  • Pierres précieuses oeil de chat
  • Pietersite
  • Prehnite
  • Pyrite
  • Pyrite Arc en Ciel
  • Péridot
  • Quartz
  • Quartz Citron étoilé
  • Quartz Fraise
  • Quartz Fumé
  • Quartz Rose
  • Quartz Rose Étoilé
  • Quartz Rutile
  • Quartz avec marcassite
  • Rhodochrosite
  • Rubellite Tourmaline
  • Rubis
  • Rubis en Fuchsite
  • Rubis Étoilé
  • Rubis-Zoisite
  • Saphir
  • Saphir couleur-Changeant
  • Saphir Étoilé
  • Scapolite
  • Scolécite
  • Seraphinite
  • Serpentine
  • Sillimanite
  • Smithsonite
  • Sodalite
  • Spectrolite
  • Sphalérite 
  • Sphène
  • Spinelle
  • Tanzanite
  • Topaze
  • Topaze Imperiale
  • Topaze Mystique
  • Tourmaline
  • Turquoise
  • Variscite
  • Zircon
  • Émeraude
  • Œil de faucon
Catégories principales
  • Nouveautés
  • Lots de pierres précieuses
  • Pierres précieuses calibrées
  • Pierres gemmes à la pièce
  • Des pierres précieuses d'excellentes qualités
  • Paires correspondant
  • Pierres précieuses cabochon
  • Gemmes, briolettes et perles percées
  • Pierre de naissance
  • Sculptures en pierres précieuses
  • Pierres précieuses fantaisie
  • Pierre précieuse étoiles
  • Saphir non chauffé
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Taille et poids

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart