Case Study

Chatham Created Gems

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Chatham lab-grown blue sapphire and diamond pendant
Fine Jewelry · Lab-Grown Gemstones & Diamonds

Chatham Created Gems

Retained partner since 2016  ·  Brand Website · SEO & AI Search · Google Ads · Meta · LinkedIn (B2B) · Email · Social

Chatham is the house that invented an industry. As a boy, Carroll Chatham dreamed of growing diamonds — an early garage experiment famously ended in an explosion — so he turned to emeralds and, in the 1930s, created the first commercially successful lab-grown emerald. The company he founded would later realize his original dream, developing its first lab-grown diamond, and today leads in lab-grown diamonds and fine fashion jewelry — more than 80 years of craft few brands in the world can claim. Marketing a house like this demands a singular discipline: grow reach and revenue across two very different audiences without ever compromising the prestige of the name.

The Challenge

Chatham operates in two worlds at once — a wholesale business supplying loose lab-grown gems and diamonds to jewelers and retail partners (IJO/CJG, the Plumb Club, the JCK show), and a consumer-facing brand that builds desire among affluent shoppers and guides them to Chatham's network of authorized retailers. Every consumer campaign had to protect and feed the retail channel, never bypass it. Reaching both the trade buyer and the affluent consumer — while low-cost lab-grown competitors flood the category — required a partner who understood luxury, understood the gemstone trade, and could deliver across every channel without diluting the brand or competing with its own retailers.

What We Did

Luxury Brand Marketing built and runs Chatham's full digital program: Shopify brand-site management and the migration to the new Edge theme, with a store locator that routes shoppers to authorized jewelers; always-on Google Ads, Meta, and Pinterest paid media; an SEO program extended into AI-search visibility; a dedicated LinkedIn B2B program and trade marketing around JCK Las Vegas; fractional strategy with monthly and annual reporting; and a consistent, image-led social presence on Instagram and Facebook that drew 267,000+ Instagram profile views in a year — now scaling on a dedicated audience-growth budget funded for the first time in 2025.

4.58MB2B LinkedIn impressions in 2025, ~17,700 landing-page clicks — engagement +296%, CPM −47%
+181%Above forecast in paid search — ~1,200 campaign conversions vs. 429 expected
14.5K+Store-locator sessions — qualified shoppers sent straight to authorized retailers
109K+Sessions to the #1 landing page, the Diamond Fashion Collection
On WikipediaHelped get the Carroll Chatham article published — brand authority on the web's most-cited source for Google & AI answers
Since 2016Nearly a decade as Chatham's retained growth partner

We also grew Chatham's consumer following across search and social and routed that demand to its retailers. Chatham captured 243,000+ organic Google sessions and now appears across AI-driven discovery surfaces — including referral traffic from ChatGPT — reinforcing brand authority before a shopper ever reaches a jeweler. As part of Chatham's PR and content-authority program, Luxury Brand Marketing also helped get the brand published on Wikipedia — securing a dedicated article on founder Carroll Chatham, the original pioneer of lab-grown gemstones, on the web's most-cited source for both Google and AI answer engines.

Gwho invented lab-grown gemstones+google.com/search?q=who+invented+lab-grown+gemstonesSGooglewho invented lab-grown gemstonesAllImagesNewsVideosShoppingMoreAI OverviewFrom sources across the webAmerican chemist Carroll Chatham created the first lab-grown emerald in the 1930s— the first commercially successful synthesis of the gem — founding the company thatstill bears his name and, with it, the entire lab-grown gemstone industry.His boyhood dream, though, was the diamond: an early garage experiment caused anexplosion that steered him toward emeralds instead. Decades later, the Chatham companyrealized that dream — developing its first lab-grown diamond — and today grows a fullrange of created gems and lab-grown colored diamonds, each identical to its mined form.Show more Cchatham.comThe Original Architects of theGem-Growing IndustryGgia.eduChatham Created Gems &Lab-Grown DiamondsWen.wikipedia.orgCarroll Chatham — Wikipedia(pioneer of created gems)
AI search — Chatham surfaced as the pioneer of lab-grown gemstones
WCarroll Chatham - Wikipedia+en.wikipedia.org/wiki/Carroll_ChathamSWWIKIPEDIAThe Free EncyclopediaSearch WikipediaDonateCreate accountLog inArticleTalkReadEditView historyToolsCarroll ChathamFrom Wikipedia, the free encyclopediaCarroll Chatham (1914–1983) was an American chemist who developed theflux method for synthesizing emeralds. He was the first person to create acommercially successful synthetic emerald, and founded the jewelry companyChatham, which still sells Chatham emeralds to this day.[1]As a boy, Chatham dreamed of synthesizing diamonds; an early garage experimentended in an explosion, leading him to grow emeralds instead. After his death, thecompany he founded developed its first lab-grown diamond — finally fulfilling thatboyhood dream.[1]He attended the California Institute of Technology, earning a chemistry degreein 1938. His carefully guarded flux recipe produced emeralds without the inclusionsand fractures common to natural stones.[3]Carroll ChathamChemist & gem-growing pioneerBorn1914Died1983Alma materCaltech (1938)Known forFlux-grown emeraldsCompanyChatham Created GemsChildrenTom & John Chatham
The Carroll Chatham article, live on Wikipedia
WEmerald - Wikipedia+en.wikipedia.org/wiki/EmeraldSWWIKIPEDIAThe Free EncyclopediaSearch WikipediaDonateCreate accountLog inArticleTalkReadEditView historyToolsEmeraldSynthetic emeraldBoth hydrothermal and flux-growth synthetic emeralds have beenproduced, and a method has been developed for producing an emeraldovergrowth on colorless beryl.The first commercially successful emerald synthesisprocess was that of Carroll Chatham,likely involving a lithium-vanadate flux process, as Chatham's emeralds do not have any water andcontain traces of vanadate, molybdenum and vanadium.[36]The other large producer of flux emeralds was Pierre Gilson Sr., whoseproducts have been on the market since 1964 — nearly three decades afterChatham's pioneering process.Lab-grown emerald
Wikipedia’s Emerald article also credits Chatham as the first commercially successful synthesis
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Results reflect Chatham program performance as reported through Luxury Brand Marketing analytics (Google Ads, Google Analytics, Google Search Console, and LinkedIn), 2025–2026.