According to The Knot's 2025 data, the average couple spends $6,500 on an engagement ring. That number sounds like a reflection of quality. It isn't. It's a reflection of retail markup, wholesale layers, brand overhead, and the cost of keeping a glass case lit on Fifth Avenue. The stone itself — the part that actually matters — represents a fraction of what you're paying.

Here's what the traditional jewelry industry doesn't want you to know: a lab-grown diamond or moissanite set in real gold, purchased directly from the maker, delivers the same beauty, the same durability, and a far cleaner ethical story — at a price that reflects craftsmanship, not overhead.

This engagement ring buying guide is for the buyer who does their research. Whether you're comparing a moissanite engagement ring to a lab diamond engagement ring, trying to decode setting styles, or wondering how to choose an engagement ring that actually reflects your values — this guide covers it all. You're not looking for a logo. You're looking for a ring that means something — one that's ethically sourced, expertly made, and priced with honesty.

Start With Your Values, Not Your Budget

The conversation around engagement rings has shifted. A growing number of couples aren't choosing lab-grown diamonds and moissanite simply because of price — they're choosing them because of what they stand for.

Traditional diamond mining carries a well-documented environmental cost: land disruption, water usage, carbon emissions, and in some regions, ongoing human rights concerns. Lab-grown stones sidestep all of it. They are created in controlled environments using advanced technology, with no mining, no conflict, and no ecological destruction. For buyers who care about where their money goes, this matters.

Lab-grown diamonds are physically, chemically, and optically identical to mined diamonds. They're graded using the same 4Cs — cut, color, clarity, and carat — and certified by the same institutions, including GIA and IGI. If you put a lab diamond and a mined diamond in front of a gemologist without documentation, they cannot tell them apart.

Moissanite is a different stone entirely — silicon carbide rather than carbon — with its own remarkable properties. It actually outperforms diamond in fire and brilliance, meaning it throws more rainbow light under direct illumination. It has been a beloved choice for decades among buyers who want maximum sparkle.

At Luxe Gemmes, both options are available. No pressure toward one or the other — the right choice depends on what you value most in a stone.

Understanding the Stone: Moissanite vs. Lab Diamond

Choosing between moissanite and a lab diamond comes down to a few key differences. Neither is the wrong choice — they're just different stones with different characters.

Moissanite:

• Higher refractive index than diamond (2.65–2.69 vs. 2.42), producing more fire — the rainbow dispersion of light
• Extremely hard: 9.25 on the Mohs scale, second only to diamond
• Conflict-free, lab-created, no mining required
• Graded by the 4Cs (cut, color, clarity, carat)
• Typically the more accessible price point within the Luxe Gemmes range

Lab Diamond:

• Chemically and physically identical to a mined diamond (pure carbon, same crystal structure)
• Graded by the 4Cs (cut, color, clarity, carat) — certified by GIA or IGI
• The choice for buyers who specifically want a diamond — same look, same grading, no compromise on identity
• Slightly higher price point, still dramatically less than mined diamond retail

Both are conflict-free. Both are real, durable, beautiful stones. Both are the intelligent choice for a buyer who wants quality without supporting an extractive supply chain.

For a deeper side-by-side breakdown, explore the Ultimate Stone Guide — it covers brilliance, hardness, grading, and how to decide which stone is right for you.

Choose Your Shape

Shape is one of the most personal decisions in this process, and it has more impact than most buyers realize — not just aesthetically, but on how large the stone appears and how it looks on the hand.

• Round: The classic. Maximum brilliance due to its symmetrical faceting. A universally flattering choice.
• Cushion: Soft corners, rounded edges, a vintage romanticism. Pairs beautifully with a hidden halo setting. Browse the cushion cut collection.
• Oval: Elongates the finger, appears larger per carat than a round stone. Currently one of the most popular shapes in modern bridal.
• Radiant: A rectangular shape with cropped corners and a brilliant-cut faceting pattern — meaning it throws light like a round, but with a bold, modern silhouette. The radiant is Luxe Gemmes' top-selling shape. Explore the radiant cut collection.
• Emerald: Step-cut faceting creates long, hall-of-mirrors reflections. Sophisticated and architectural.
• Pear: A teardrop hybrid of round and marquise. Worn with the point toward the fingertip, it creates significant elongation.
• Princess: A square brilliant cut — modern, geometric, high brilliance.

One practical note: elongated shapes (oval, pear, radiant) tend to look larger per carat than compact shapes like round or princess. If visual size is a priority, this is worth factoring in.

Choose Your Setting

Solitaire: The stone stands alone, elevated on a simple band. Nothing competes with it. The solitaire collection is the choice for buyers who want the stone to be the entire story — clean, timeless, enduring.

Halo: A border of smaller accent stones surrounds the center stone, amplifying its perceived size and adding a vintage-leaning glamour. The halo collection dramatically increases the visual presence of any center stone.

Hidden Halo: Luxe Gemmes' signature setting. From above, it reads like a solitaire — clean, modern, uncluttered. From the side, a band of pavé stones is revealed beneath the center stone's girdle. It's a design that rewards the people closest to you: the surprise is only visible up close. The Radiant Hidden Halo and the Cushion Hidden Halo are the brand's two bestselling rings, and for good reason — they deliver the elegance of a solitaire and the presence of a halo in one design.