Moissanite Jewelry in Every US State: The Complete Buying Guide Directory

September 17, 2026

This is the most comprehensive moissanite buying guide directory in the United States — a state-by-state resource covering every US market, from the largest metropolitan areas to the most remote communities. Whether you're shopping in New York City or rural Montana, this directory connects you to the specific buying guide for your state: local jewelry market context, sales tax information, regional buyer culture, popular moissanite shapes, and price comparisons with local diamond retailers.

Moissanite is a lab-created gemstone (silicon carbide) with a refractive index of 2.65–2.69 — higher than diamond's 2.42 — and a dispersion (fire) of 0.104, more than twice diamond's 0.044. At DEF colorless and 9.25 Mohs hardness, it is optically superior to diamond in brilliance and fire, equivalent in color, and nearly equivalent in durability — at approximately 5–10% of the diamond price. No other gemstone offers this combination of properties and value.

Use the directory below to find your state's complete buying guide.

Northeast

Mid-Atlantic & Southeast

Midwest

South & Gulf Coast

Mountain West & Southwest

Pacific West

Why Buy Moissanite? The Core Case

Every state guide in this directory makes the same fundamental case — because the case is universal:

Optical performance: Moissanite has a higher refractive index (2.65–2.69 vs. 2.42) and more than twice diamond's fire (dispersion 0.104 vs. 0.044). It is not a diamond substitute — it is a superior optical performer in a different gem family.
Durability: 9.25 Mohs hardness — second only to diamond. Scratch-resistant for everyday fine jewelry wear in any US climate or lifestyle.
Price: Approximately 5–10% of equivalent diamond retail price. A $5,000 diamond engagement ring has a moissanite equivalent at $300–600.
Ethics: Lab-created — zero mining impact, complete provenance transparency, no conflict sourcing.
Sales tax: Online moissanite purchases from out-of-state retailers may avoid state sales tax — a saving of 5–10% on top of moissanite's already dramatic price advantage. Five states have no sales tax at all: Oregon, Montana, New Hampshire, Delaware, and Alaska.