Countries like Denmark, Poland, Germany, Lithuania, Ukraine, and Russia are rich in amber, embracing a long history and culture of Amber. In Denmark, amber is known as the Scandinavian Gold. Danish amber is well-known as the most famous amber worldwide for its finest quality, stylish and elegant design.
The Dominican blue amber is known as the king of amber in the jewelry industry, for its pure quality, color variation, and limited production.
Amber is an organic gemstone with low hardness and density, it requires gentle care while wearing the amber jewelries. Avoid starches, knock, oils, lotions, perfume, detergents, as well as exposure to long time direct sunlight or heat, in order to keep its natural gloss. We recommend you to wear your amber jewelry often, which can bring positive effect to your health, and also its a good way to keep the amber jewelry glossy and shine.
There are three main regions producing gem-level coral includes the Chinese territorial waters around Taiwan and southern sea of Japan, the Mediterranean island of Sardinia and the area near the Pacific Ocean.
The sea of Taiwan and Japan are rich in AKA and mono coral. AKA coral is considered as the highest quality and most expensive coral worldwide. The color ranges from red to deep red, the most expensive AKA coral are deep red with flawless surface and strong glossiness.
Italy Sardinian waters has rich resources in satin coral, which rank the second top quality after the AKA coral. Satin coral is also very precious coral species, the color ranges from orange, orange red, red, deep red, the deep red color can reach the top color as AKA coral. Midway sea coral color is shallow, and it mostly grows in the deep sea more than 1000 meters, which has been banned for production for many years.
Diamonds and colored gems
Diamond is a colorless crystal, composed of carbon elements known as the hardest natural substance in existence. Gemstone diamond is used to process into diamond jewelry, which is the most valuable gemstone in the world. Apart from diamond, all other gemstones are collectively named as color gemstone encompassing diverse precious stones and semi-precious stones such as Tanzanite, Opal, Aquamarine, Tourmaline, Topaz, Peridot, Garnet, Moonstone, and Turquoise, etc.
Sinodic jewelry focuses on the natural amber and coral jewelry, while we will soon bring in a new product line - the Belgian diamonds. Antwerp, known as the World Diamond Center, owns the world’s top diamond cutting and processing technology and over 1800 diamond companies. Antwerp accounts for 80% of the world’s rough diamond and 50% of the finished diamond trading
Sinodic Jewelry will also gradually introduce a variety of natural colored gemstones, which will be integrated into the diverse series of Sinodic jewelry designs, enriching a variety of categories and styles and demonstrating natural charm of different gems.
丹麦, 波兰, 德国, 立陶宛, 乌克兰, 俄罗斯等国盛产琥珀，有着悠久的琥珀文化和历史。在丹麦，琥珀被称为北欧之金, 丹麦海漂琥珀以其最优良的品质和简约优雅的设计风格，逐渐被世界认知并成为丹麦名品之一。
心诺帝珊瑚系列以意大利沙丁珊瑚为主，兼含台湾AKA及momo珊瑚，所有产品均来自意大利及台湾优质珊瑚品牌商。心诺帝合作意大利珊瑚品牌商众多，其中之一是一家拥有80多年历史的珊瑚家族企业，并在2016年荣获世界第一旅游评论网站 Trip Advisor猫途鹰颁发的产品杰出奖获得者Winner of ”Certificate of excellence” 。
自然界有3000多种矿物质，但是达到宝石级别，常被用于加工成珠宝的矿物质只有二十余种，按照美观、耐久、稀少三个因素综合考虑，宝石一般可以分为天然宝石，天然玉石，天然有机宝石。 珍贵的天然宝石如钻石、红宝石、蓝宝石、祖母绿和金绿宝石 (猫眼石)，即通常所谓的五大宝石。知名珍贵玉石如和田玉，翡翠, 天然有机宝石主要有珍珠 、珊瑚、琥珀 、象牙等。
钻石在化学和工业中称为金剛石，是碳元素组成的無色晶体，是目前已知的自然存在的最硬物質，宝石级金刚石一般用来加工成钻石珠宝饰品，备受世人青睐。国际上把除了钻石以外的宝玉石统称为彩色宝石，包含各类珍贵宝玉石及半宝石如坦桑石、欧泊 、海蓝宝石、碧玺、黄玉、 橄榄石、石榴石、月光石、绿松石等。