January — Garnet
Primary: Garnet. Deep red pyrope or almandine garnet is the classic January stone. Red garnet tumbles run $5 to $20. Set garnet rings start at $50. Alternative: Rose quartz for a gentler, more affordable option.
February — Amethyst
Primary: Amethyst. The most widely available birthstone. Purple quartz tumbles from $3, clusters from $12, set jewelry from $30. Alternative: Fluorite for budget buys, or ametrine for something unusual.
March — Aquamarine
Primary: Aquamarine. Pale blue beryl associated with calm and clarity. Tumbles $8 to $25, faceted stones from $40 per carat. Alternative: Bloodstone (traditional March stone) for a dramatic green-red contrast.
April — Diamond
Primary: Diamond. The most recognized birthstone. Lab-grown diamonds offer identical optics at 60 to 80% lower cost. Alternative: Clear quartz or white topaz for budget gifts; moissanite for near-diamond brilliance.
May — Emerald
Primary: Emerald. Deep green beryl, often with natural inclusions (called jardin). Commercial emerald with minor oiling is the norm. Tumbles $10 to $30, faceted stones from $50 per carat. Alternative: Green aventurine or chrome diopside for budget.
June — Pearl, Alexandrite, or Moonstone
June has 3 modern birthstones. Pearl for traditional elegance ($30 to $500+ per strand). Alexandrite for dramatic color-change (lab-grown from $30 set). Moonstone for ethereal glow ($10 to $60 per cabochon). All 3 make excellent June gifts.
July — Ruby
Primary: Ruby. Red corundum, the most classically romantic gemstone. Heated commercial ruby in silver from $40. Unheated fine ruby is investment-grade. Alternative: Red garnet or red spinel for the color at lower cost.
August — Peridot, Spinel, or Sardonyx
Primary: Peridot. Bright lime-green olivine, one of the most distinctive gem colors. Tumbles $5 to $15, faceted from $20. Also official: Spinel (all colors) and sardonyx. Spinel makes an excellent alternative for anyone who loves rich color.
September — Sapphire
Primary: Sapphire. Blue corundum, one of the most gifted gemstones globally. Heated commercial blue sapphire in silver from $50. Lab-grown sapphire from $15. Alternative: Iolite for a blue-violet effect at lower cost.
October — Opal or Tourmaline
Primary: Opal. Play-of-color in white, black, or fire varieties. Lab-created opal is safe for daily wear and much more affordable. Also official: Tourmaline — available in pink, green, bi-color, and watermelon varieties. Tourmaline is a versatile pick for anyone who finds opal too delicate.
November — Topaz or Citrine
Primary: Topaz. Imperial topaz (golden orange) is the prestige option. Blue topaz is widely available and affordable from $20 set. Alternative: Citrine (the official alternative) — golden yellow quartz, widely available, $5 to $40.
December — Turquoise, Tanzanite, or Zircon
December has 3 official stones. Turquoise for classic Southwest American style ($15 to $100 per cabochon, natural untreated). Tanzanite for a modern blue-violet gem from Tanzania ($50+ per carat). Zircon (natural, not cubic zirconia) for high dispersion at moderate cost.