Diamond
Diamond, lab-grown diamond, moissanite and how they are graded: the 4Cs and certificates.
8 entries
Materials
Cubic zirconia
Cubic zirconia is a synthetic zirconium oxide (8-8.5 on Mohs), colorless and very inexpensive, used as a diamond simulant.
Materials
Diamond
The diamond is the symbol of luxury and romance: it is commonly used in the production of engagement rings, wedding rings, high-quality earrings, and necklaces.
Jewelry care and maintenance
How to clean a diamond ring
How to clean a diamond ring at home with lukewarm water, mild soap and a brush, and how often to have a jeweler check it.
Buying guides
How to read a diamond certificate: what each section says
What information appears in a gemological diamond certificate (4Cs, measurements, fluorescence, inscription) and what it is not: it is not an appraisal.
Buying guides
Lab-grown or natural diamond: differences, price and which to choose
Differences between a lab-grown and a natural diamond: same material, different origin and price; how to tell them apart, certificates and resale value.
Materials
Moissanite
Moissanite is silicon carbide (9.25 on Mohs), almost always lab-grown, with more fire than diamond and much cheaper.
Buying guides
The 4Cs of diamonds: cut, color, clarity and carat
The 4Cs of diamonds explained: cut, color (D-Z), clarity (FL to I3) and carat weight, and how to balance them for your budget.
Jewelry
Types of gem and diamond cuts
A catalog of the most common gem and diamond cuts: brilliant, princess, emerald, Asscher, radiant, cushion, oval, pear, marquise, heart, baguette and cabochon.