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Birthstones by month: the lab-created and affordable option for each

Every month has a birthstone, and most can be bought affordably: sapphire (September), ruby (July), emerald (May) and alexandrite (June) are available lab-created, with the same mineral as the mined stone; garnet, amethyst, peridot, citrine and topaz are inexpensive even natural; and April's diamond can be swapped for moissanite. The table lists the modern US birthstones and the listing words to look for.

Where the list comes from

The modern US birthstone list was set by jewelers in 1912 and updated since: spinel was added for August in 2016. Several months have more than one stone, so there is usually an affordable choice.

Lab-created vs simulated

"Created", "lab-created" or "lab-grown" means the real mineral, grown in a lab. "Simulated" means a look-alike, often glass or cubic zirconia. Cheap "alexandrite" and "tanzanite" are usually simulants, so the listing wording matters most for those.

Modern birthstones and the affordable way to buy them
MonthBirthstoneAffordable optionShop
JanuaryGarnetNatural garnet is inexpensiveGarnet
FebruaryAmethystNatural amethyst is inexpensiveAmethyst
MarchAquamarineNatural aquamarine in small sizes; lab spinel is a look-alikeAquamarine
AprilDiamondMoissanite or lab-grown diamondMoissanite
MayEmeraldLab-created emeraldLab emerald
JunePearl, alexandrite, moonstoneCultured pearl, or lab-created alexandritePearl
JulyRubyLab-created rubyLab ruby
AugustPeridot, spinelNatural peridot is inexpensivePeridot
SeptemberSapphireLab-created sapphireLab sapphire
OctoberOpal, tourmalineLab-created opal, or natural pink tourmalineOpal
NovemberTopaz, citrineNatural citrine and topaz are inexpensiveCitrine
DecemberTurquoise, tanzanite, zirconBlue topaz or natural zircon; cheap "tanzanite" is usually simulatedBlue topaz

Frequently Asked Questions

Is a lab-created birthstone a real birthstone?

Yes. A lab-created sapphire, ruby, emerald or alexandrite is the same mineral as the mined stone, with the same hardness and colour cause. Only "simulated" stones are imitations.

What is the April birthstone alternative to diamond?

Moissanite is the most popular: it looks like diamond, is nearly as hard and costs a fraction as much. Lab-grown diamond is the other option.

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