Gem Stones

This hexagon, rose-cut black spinel is a budget-friendly alternative to black diamond and other more expensive gemstones. The hardness makes it an appropriate choice for adding dramatic black gems to any type of jewelry, even those that get the most wear...

This hexagon, rose-cut black spinel is a budget-friendly alternative to black diamond and other more expensive gemstones. The hardness makes it an appropriate choice for adding dramatic black gems to any type of jewelry, even those that get the most wear...

Stone size: 22 x 13mm Stone shape: Oval Material: Chalcedony Stone type: Natural Color: Blue Mohs hardness: 6.5–7 Refractive index: 1.54–1.55 Specific gravity: 2...

The dramatic, deep orange-red color of this round carnelian cabochon makes it a beautiful option for custom jewelry designs; the stone's relative hardness makes it a good substitute for other softer stones in pieces that will see wear, such as bracelets...

This carnelian cabochon features a heart shape with straight side with a flat top and bottom. It displays dramatic, deep orange-red tones and is a great choice for custom bracelets, pendants and anklets. The stone's relative hardness makes it a good...

This round chocolate moonstone cabochon presents a luminous mink brown color and is ideal for use in custom earrings, pendants, brooches or stick pins. Create coordinated sets with this moonstone or combine it with other earth-tone cabs to design...

This round untreated chrysoprase cabochon has a silky, translucent green color and its durability makes it ideal for setting in bezel mountings in nearly any style of jewelry. Combine it with complementary-color stones to create mixed-stone pendants,...

Stone size: 10 x 8mm Stone shape: Oval Material: Quartz Stone type: Doublet Color: Blue Clarity: Eye-clean Mohs hardness: 7 Refractive index: 1.544–1.553 Specific...

Stone size: 12 x 10mm Stone shape: Oval Material: Quartz Stone type: Doublet Color: Blue Clarity: Eye-clean Mohs hardness: 7 Refractive index: 1.544–1...

Stone size: 1.0mm Stone shape: Round Material: Cubic zirconia Stone type: Manmade Color: Clear Mohs hardness: 8.5 Refractive index: 2.15–2.18 Specific gravity: 5...

Stone size: 12.0mm Stone shape: Round Material: Lapis lazuli Stone type: Natural Color: Denim blue Mohs hardness: 5–5.5 Refractive index: 1.500–1.670 Specific...

Diamond sizes are not uniform; .01-ct. round diamonds will vary slightly (.007-.012 ct.). If you require a specific size to fit a particular mounting, please contact our Gemstones & Diamonds team or leave a note below when you order, and we will do our...