Herkimer Diamond Ring, Natural Herkimer Diamond Crystal Ring, Handmade 925 Sterling Silver Herkimer Diamond Ring, One of Kind Diamond gemstone Ring, Raw Diamond Crystal Jewelry. Metal/Material: 925 Silver SKU: U436 Gemstone: Herkimer Diamond Stone size: 10x14 mm approx. Stone weight: 14 Carat approx. Weight: 7.5 gram approx. Ring Sizes: 5 to 12 US. Please choose on Drop down, Stone Cut: Raw stone Stone Shape: Fancy Stone Setting: Bezel Band Color: Silver Style: Statement Birthstone: April Stone Color: Black & white Finishing: Shiny polished Gemstone Properties: Herkimer Quartz "Diamonds" are the high energy seekers of the crystal world, Herkimer Diamonds are the most powerful of all Quartz crystals. Being doubly terminated, they have the ability to not only transmit their own energies, but to receive spiritual energy and to amplify and focus it intently.