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r/LabDiamonds↗

Lab Diamonds

A place to discuss lab grown diamonds

36k subscribers189 posts / mo in Sep 2026166 authors / mosince 2019

r/LabDiamonds has 36k members (+40% over the last 12 months). It gets about 189 posts a month from 166 people. Top topics: Diamonds & Jewelry, Lab Grown Diamonds and Engagement Rings.

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Size and growth

How r/LabDiamonds has grown

r/LabDiamonds

Subscriber growth

Subscribers over time

+40%in 12 months · +5.6% in 3 months · +1.0% in 1 month
Oct 202636k
Growing36k subscribers
Data since Apr 2020Live · through Oct 2026
r/LabDiamonds

Monthly activity

Posts, comments and authors per month

+1.1%vs Sep 2025 · −35% last 3 months vs the 3 before
Sep 2026189
BusierPeaked at 431 in Mar 2026
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/LabDiamonds

Top topics

Share of the subreddit's posts

  1. Diamonds & Jewelry13%
  2. Lab Grown Diamonds7.8%
  3. Engagement Rings4.6%
  4. Stone Size Discussions3.9%
  5. Lab Grown Diamonds2.8%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. etsy
  2. Rare Carat
  3. StoneAlgo
  4. Verifying…
  5. EBTH

The full report

Everything else about r/LabDiamonds

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research