Jewelry marketing treats “your birthstone month” as a natural seasonal moment — the one time of year a stone is supposedly “yours.” We tested whether that is actually true, using five years of real Wikipedia traffic data for all twelve birthstones. Seven of the twelve stones do get measurably more attention in their own month. Two of them — Pearl and Ruby — get noticeably less.
Personalized jewelry brands lean on this idea constantly — “shop her birthstone,” “give the gift of her month” — without ever citing a number behind it. We wanted an actual measurement, not another retailer repeating the line, so we built one from a public data source instead of assuming the marketing copy was right.
How We Measured “Interest”
We pulled monthly page-view counts from the Wikipedia Pageviews API, a free, no-authentication public dataset that Wikimedia itself publishes for every article, with bot traffic already filtered out. For each of the twelve modern birthstones (the one-stone-per-month list used by Jewelers of America), we pulled every monthly view count from January 2022 through July 2026 — 55 full months, 660 data points in total.
For each stone we calculated a spike ratio: the average views in that stone’s own birth month, divided by the average views in every other month of the year, using the same Wikipedia article both times. A ratio above 1.00 means the stone gets more attention in its own month than the rest of the year; a ratio below 1.00 means it gets less. Two article titles needed correcting before the numbers meant anything — “Ruby (gemstone)” and “Aquamarine (gemstone)” turned out to be near-dead redirect stubs collecting almost no direct traffic, while the real articles (“Ruby” and “Aquamarine (gem)”) carry the actual view counts — so we checked every title against Wikipedia’s own redirect resolution before trusting a single number.
Five occurrences of a given month (January through July, which repeat five times in this window) versus four (August through December) is a modest sample, so we treat any ratio within a few points of 1.00 as noise rather than a real effect — which is why the cutoff below is 1.05, not 1.00.
Which Birthstones Actually Spike in Their Own Month
Only seven of the twelve stones show a real own-month lift (a ratio above 1.05). Peridot (August) shows the strongest effect at 1.28 — roughly 28% more Wikipedia attention in August than the rest of the year — followed by Garnet (January, 1.20) and Opal (October, 1.20). Aquamarine (March, 1.16), Topaz (November, 1.14), Sapphire (September, 1.12) and Amethyst (February, 1.07) also spike, more modestly.
The Strongest Case: August and Peridot
Peridot is the clearest example of the effect actually working. Across 2022–2026, the Peridot Wikipedia article averaged 27,750 views in August, compared with an average of 21,677 views across the other eleven months — a real, repeatable gap, not a one-year fluke, since it holds across four separate Augusts in the data. October shows nearly the same size effect for Opal (1.20), and January shows it for Garnet (1.20) — those three months are the strongest evidence for “birthstone month” as a real, measurable moment rather than just a marketing line.
Where the Assumption Breaks Down
The other half of the calendar tells a different story. Turquoise (December, 1.02) and Emerald (May, 0.98) show essentially no seasonal effect — their own-month average is statistically indistinguishable from the rest of the year. Diamond (April, 0.94) runs slightly below its yearly average. And two stones actually reverse the pattern: Pearl (June) and Ruby (July) both get about 16% less attention in their own birth month than in the rest of the year (ratios of 0.84 and 0.84). We do not have a confirmed explanation for the Pearl/Ruby reversal in this dataset — it may be that June and July driving searches for weddings, graduations and summer travel pull general Wikipedia traffic toward other topics broadly, diluting gemstone articles along with everything else, but that is a plausible reading of the pattern, not a tested cause.
What This Means If You're Buying by Birth Month
If you're timing a gift or a personal purchase to someone's birth month expecting it to feel like a special, of-the-moment choice, the data says that instinct is well supported for about half the calendar — August, January, October, March, November, September and February — and weaker or backwards for the rest, especially June and July. Our own monthly birthstone guide covers what each month's stone actually is and how the tradition started; if you already know the month you're shopping for, our birthstone necklace collection is organized the same way, one stone per month.
For June and July specifically — the two months where the data runs backwards — there's no measured penalty to buying or gifting a birthstone piece slightly outside the “home” month; if anything, the stone gets more general attention the rest of the year than it does in its own month, so timing a Pearl or Ruby gift to the birthday itself isn't backed by this data the way it is for an August or January gift.
Limits of This Data
Wikipedia page views measure public curiosity, not purchase intent or Google search volume — someone reading about garnet is not the same as someone shopping for a garnet ring, and we are not claiming this data predicts sales. The dataset is also global English-Wikipedia traffic with no country filter, while FARUZO's audience is mostly U.S.-based, so a country-specific search-demand source could sharpen or contradict these numbers. Overall English-Wikipedia traffic fell by roughly 60% heading into 2026 for reasons unrelated to gemstones, which affects the absolute view counts but not the within-stone ratios this study relies on (recomputing on 2022–2025 only, before that decline, keeps the same seven-of-twelve result). And a spike ratio only describes a pattern — it does not tell us why a given month spikes or doesn't.
This is the latest in FARUZO's data-driven research series — real public datasets, no invented numbers, testing assumptions the jewelry industry usually just repeats.
Frequently Asked Questions
Does your birthstone month actually make your stone more “relevant” that month?
Sometimes. Seven of the twelve modern birthstones — Peridot, Garnet, Opal, Aquamarine, Topaz, Sapphire and Amethyst — get measurably more Wikipedia attention in their own birth month than the rest of the year, based on views from 2022–2026. The other five show little effect or, for Pearl and Ruby, the reverse.
Which birthstone has the strongest seasonal spike in public interest?
Peridot, August's birthstone, has the strongest measured effect: about 28% more Wikipedia views in August than its average across the rest of the year, 2022–2026.
Is Wikipedia page-view data the same thing as search demand?
No. It's a proxy for how much people are reading about a topic, not a Google Trends or Search Console number, and it doesn't measure buying intent. We used it here because it was the only reliable public seasonality data source available; a future study using real search-demand data could test the same question more directly.
Which birthstones show no seasonal boost at all?
Turquoise (December) and Emerald (May) are essentially flat — their own-month average is close to their yearly average. Diamond (April) runs slightly below average, and Pearl (June) and Ruby (July) both run about 16% below their yearly average in their own birth month.
Why do Pearl and Ruby get less attention in their own birth month?
The data doesn't tell us why, only that it happens — both June (Pearl) and July (Ruby) run about 16% below their yearly average. One plausible factor is that June and July are dominated by other search behavior — weddings, graduations, summer travel — that pulls general Wikipedia traffic toward unrelated topics during those months, diluting gemstone articles along with most others, but that's a reasonable explanation, not something this study tested directly.
