Description

3 Carat Marquise Lab Diamond Engagement Ring – 6-Prong, Pave Band, 18K Yellow Gold

This ring is built around a 3.0 carat marquise cut lab diamond held in a 6-prong setting, with a pave band running along the shank. The marquise is the most face-up-large shape in diamond cutting — its elongated navette outline gives it more visible surface area per carat than any other shape, and when worn, the length runs along the finger to make both the stone and the hand appear larger and longer. The 6-prong mount uses V-prongs at the pointed tips to protect the most vulnerable part of the marquise while keeping the stone open and visible from above. The pave band adds 0.50 carats of side diamonds, bringing total diamond weight to 3.50 carats and keeping the ring bright from every angle.

Diamond Specifications

• Center Stone: 3.0 carat marquise cut lab-grown diamond
• Color: E — colorless, second grade on the GIA scale
• Clarity: VVS2 — inclusions invisible to the naked eye, extremely small under magnification
• Certification: IGI certified
• Side Diamonds: Pave band, 0.50 carat total
• Total Carat Weight: 3.50 carats

Ring Specifications

• Setting Style: 6-prong solitaire with pave band
• Prongs: 6 prongs — V-prongs at the tips, standard prongs at the sides
• Shank Width: 2mm
• Metal: 18K Yellow Gold
• Finish: High-polish
• Sizing: Made to order in your size

What’s Included

• ✔ IGI gemological certificate
• ✔ Professional appraisal certificate
• ✔ Luxury ring box
• ✔ Free insured FedEx shipping
• ✔ 30-day return policy
• ✔ Lifetime warranty

Why This Design Works

The marquise cut was designed to maximize face-up size. Its elongated pointed shape distributes a diamond’s carat weight across a larger surface than any other cut — a 3 carat marquise will appear visually larger than a 3 carat round or cushion of identical weight. On the finger, the tip-to-tip orientation follows the length of the finger, creating a continuous visual line that makes the hand appear slimmer and the stone appear even bigger. At 3 carats, the effect is immediately striking.

The 6-prong mount is the correct setting for this shape. The two V-prongs at each pointed tip cradle and protect the ends without enclosing them the way a bezel would — the stone stays fully open and visible from above. The four prongs along the sides hold the stone securely while minimizing the metal visible against the diamond’s face. The pave band ensures the ring is active and light-catching from the side as well as face-up, so it looks brilliant regardless of viewing angle.

Frequently Asked Questions

What is a marquise cut diamond?

A marquise (also called navette, French for “little boat”) is an elongated diamond shape pointed at both ends. It is a modified brilliant cut — the same facet structure as a round brilliant — which means it produces maximum light performance: brightness, fire, and scintillation. The shape’s primary advantage is face-up size: the elongated outline gives it more visible surface area per carat than round, oval, or cushion cuts. The pointed ends require either V-prongs or a bezel to protect them from chipping with daily wear.

What are V-prongs and why does a marquise need them?

V-prongs are prongs shaped like the letter V that cradle the pointed tip of a marquise, pear, or heart-shaped diamond. The tip of a marquise is the thinnest, most structurally fragile point of the stone — a standard prong sitting on top of the tip can cause stress fractures over time. A V-prong wraps around the tip from both sides, distributing pressure evenly and protecting the point while keeping the stone visible and open from above. All properly set marquise rings use V-prongs or a full bezel at the tips.

What does E color VVS2 clarity mean?

E is the second-highest grade on the GIA color scale (D is first). Both D and E are in the colorless range — no warmth or yellow tint is detectable even under laboratory conditions. E is visually identical to D and costs meaningfully less. VVS2 (Very Very Slightly Included, second degree) is the fourth grade from the top of the clarity scale. Inclusions are microscopic and require high magnification and a trained grader to locate. The stone is completely eye-clean. E/VVS2 is the specification for a diamond that is objectively exceptional.

What is the difference between 18K and 14K gold?

18K gold is 75% pure gold; 14K is 58.5%. 18K has a richer, more saturated yellow color and is considered more prestigious for fine jewelry. The higher gold content makes it marginally softer than 14K, but both are durable for everyday wear. The practical difference most people notice is color: 18K yellow gold has a deeper warmth that complements colorless diamonds by contrast, making the stone appear brighter white.

What is a pave band?

Pave (pronounced “pah-vay”) means the band is set with small diamonds packed closely together, held by tiny prongs or beads so that the metal beneath is barely visible. The effect is a band that appears continuously paved in diamonds. On this ring, the pave side diamonds add 0.50 carats along the shank, making the ring brilliant from the side as well as face-up and bringing total diamond weight to 3.50 carats.

How does the marquise shape affect how the ring looks on the hand?

The tip-to-tip length of a marquise runs along the finger when worn, which does two things: it makes the stone appear larger than its carat weight and it creates a visual lengthening effect on the finger. A 3 carat marquise has a longer face-up measurement than a 3 carat round or cushion, making it one of the most visually impressive shapes available at any given carat weight.

Can I change the metal?

Yes. This ring can be made in 14K or 18K gold in yellow, white, or rose, or in platinum. Contact us before ordering — call 917-477-8663 or message through the site. 18K yellow gold is shown in the photos.

Can I choose a different center stone size?

Yes. We can build this design with a marquise cut center from 1 to 5 carats. Call 917-477-8663 with your budget and we will price it out. Different colour and clarity grades are also available.

Is a lab-grown diamond a real diamond?

Yes — chemically and physically identical to a mined diamond. Same carbon crystal structure, same hardness of 10, same refractive index and light performance. The only difference is origin. This diamond comes with an IGI certificate confirming its cut, colour, clarity, and carat weight.

How long until I receive my ring?

Each ring is handcrafted to order. Standard production is 10–14 business days, then ships via free insured FedEx. If you need it by a specific date, contact us before ordering and we will confirm the timeline honestly.