This guide details the world’s largest rough diamonds over 400 carats. Discover giant stones like Sewelô (1758 ct) from Botswana, Lesotho’s Legend (910 ct), and Sierra Leone’s Star (969.8 ct). Learn about their discovery in mines, cutting into polished gems, D color, high clarity, and famous buyers. Essential for jewelry professionals sourcing exceptional diamonds for custom designs and retail.
This guide details the world’s largest diamonds over 100 carats. It covers their discovery in mines, cutting into famous gems like the Cullinan, and key details on weight, color, and clarity for jewelry professionals and designers sourcing exceptional stones.
Diamond value is based on “4C” standards: Color, Clarity, Cut, Carat Weight. Major labs like GIA and China’s GB/T 16554 use this. It determines price, rarity, and beauty for jewelry businesses and sellers.
Learn how to spot real diamonds. This guide shows key tests for luster, fire, and using a thermal tester. Identify natural vs. synthetic diamonds like HPHT and CVD, and tell them apart from fakes like cubic zirconia. Essential for jewelry professionals to verify authenticity.
Diamonds form deep underground under high heat and pressure. They are brought to the surface by special volcanic rocks like kimberlite. Major sources include Russia, Botswana, and Canada. This guide explains their geological origin and global distribution for jewelry professionals.
Diamond, pure carbon, hardest natural gem, symbolizes eternal love. Types I (contains nitrogen) and II (nitrogen-free). Famous for brilliance, fire, and excellent thermal conductivity. Colorless to yellow most common; fancy colors are rare. Popular cuts: Round Brilliant and fancy shapes. Ideal for jewelry design and sales.
Ruthenium plating creates a hard, silver-white or black finish for jewelry. It offers excellent wear resistance, corrosion resistance, and a stable decorative layer for items like rings, necklaces, and watches, enhancing their durability and value.
Rhodium plating adds a hard, silver-white, anti-tarnish layer to jewelry. It prevents corrosion, maintains brightness, and resists wear. This guide explains the plating process, solutions, and how to achieve a durable, glossy finish for your silver and platinum pieces.
Palladium plating is a silver-white, ductile metal, more affordable than gold. It provides a bright, white finish, good corrosion resistance, and is used for decorative jewelry. The guide covers electroplating solutions, alloys like Pd-Ni, and processes to achieve a durable, attractive coating for your jewelry pieces.
Learn about platinum plating for jewelry! This guide covers different plating solutions like chloride and sulfate, plus alloys such as Pt-Au and Pt-Co. It’s great for jewelry stores, designers, and brands. Discover how to make your pieces more durable and attractive with detailed info on techniques and applications. Perfect for custom-made jewelry.
Jewelry Products Expert
Hi Dear,
I am Heman, dad and hero to two awesome kids. I am glad to share my jewelry experiences as an expert in jewelry products. Since 2010, I have served 29 clients from all over the world, such as Hiphopbling and Silverplanet, assisting and supporting them in creative jewelry design, jewelry product development and manufacturing.
If you have any questions about jewelry product, feel free to call or email me and let’s discuss a appropriate solution for you, and you will get free jewelry samples to check the craftsmanship and jewelry quality details.
Let’s grow together!
