The Gemstone Journal

TOUS LES NOUVEAUX ARTICLES LE 23 MARS !!! Saphir, Quartz Rutile et Topaze Bleue ! Nous vous invitons à explorer notre site et à trouver une pièce qui vous parle !

Untreated vs. Treated Gemstones: What Buyers Should Know

gemstone authenticityMark Oliver Gems02/octobre/2026

Untreated vs. Treated Gemstones: What Buyers Should Know

gemstone authenticityMark Oliver Gems02/octobre/2026

Order Processing Times

Gemstones, Earrings and Pendants will ship between 5-7 business days.

Rings will ship within 1-3 weeks as we make all rings ordered to size.

Mark Oliver Gems

76 Broadway

Suite 102A, Room 1

Denville, NJ 07834

Mon, Tue, Wed, Fri: 10:30AM - 3:00PM
Thursday: 12:00PM - 7:00PM
Saturday and Sunday: By Appointment

Get directions

#shopify-section-sections--21205249917099__map_9y4rfi .map__map-container { background-image: url(//markolivergems.com/cdn/shop/files/Screenshot_2026-08-25_184729_1200x.png?v=1787698093); }

Untreated vs. Treated Gemstones: What Buyers Should Know

Untreated vs. Treated Gemstones: What Buyers Should Know

Join Us

Order Processing Times