Naturally occurring Ruby is prohibitively expensive; sterling silver synthetic ruby jewelry is all the glamour less the headache Sterling silver rings made with the Celtic Triquetra knot are heirlooms of history; carrying a sacred symbolism precious to many cultures We ship Silvershake Simulated Red Ruby White Gold Plated 925 Sterling Silver Triquetra Celtic Knot Ring July Gemstone Birthstone in anti-tarnish protection, reinforced gift boxes with satin-style pouch with a guarantee period far-exceeding our competitors July’s birthstone, Ruby, exhibits ‘Pleochroicism’ whereby the gem changes color in relation to a light source Silvershake Simulated Red Ruby White Gold Plated 925 Sterling Silver Triquetra Celtic Knot Ring July Gemstone Birthstone Size 7