4.0Ct round cut moissanite promise ring in sterling silver

Round cut moissanite promise ring worn on hand

Side view of a 6-prong round moissanite promise ring

GRA certificate for the round cut moissanite ring

Certification card for the round cut moissanite ring

Moissanite 4.0Ct Round Cut 6 Prong White Gold Promise Ring

Moissanite 4.0Ct Round Cut 6 Prong White Gold Promise Ring

$169.00

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Moissanite 4.0Ct Round Cut 6 Prong White Gold Promise Ring

$169.00

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GRA Certified Moissanite

Free Standard Shipping

Lifetime Warranty

30-Day Returns & Exchanges

Free Gift Package

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Design Inspiration
Timeless in its beauty, the round cut has always been the ultimate symbol of everlasting love. This Moissanite 4.0 Ct Round Cut 6 Prong Promise Ring captures that eternity in its purest form. The brilliant 4.0 Ct center stone, secured by six elegant prongs, shines like a radiant sun—strong, steady, and eternal. Its flawless sparkle represents the clarity and depth of true devotion, while the 18K white gold finish reflects a modern yet classic elegance. More than a promise, this ring is a vow carved in light: a circle without end, a love without limits.

✧ Gemstone: Moissanite
✧ Setting Type: Prong Setting
✧ Stone Shape: Round Cut
✧ Stone Dimensions: 10.0 mm
✧ Center Stone Weight: 4.0 Ct
✧ Stone Color: White
✧ Color Grade: D
✧ Clarity: VVS1
✧ Cut: Excellent
✧ Metal: 925 Sterling Silver
✧ Plating: 18K White Gold

Size Guide

If You Have An Existing Ring

Measure the diameter (mm) of a ring that fits the desired finger
Use the Ring Sizing Chart to locate your size

If Not, Measure Your Finger

Wrap a strip of paper around your finger, just above the knuckle, and mark the point at which the two ends meet
Measure the paper from mark to mark to find your ring circumference (mm)
Check international ring sizing chart

Shipping & Returns

Delivery & Shipping

USA

Free Standard Shipping - (7-10 Business Days)
Express Shipping- (4-6 Business Days)
Express Shipping- (3-4 Business Days)

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30-Day Returns & Exchanges Policy

Enjoy Peace of Mind with Our 30-Day Hassle-Free Return Policy
You have 30 days from the date you receive your order to return or exchange your item—no stress, no hassle. Whether it’s a sizing issue or you’ve simply changed your mind, we’re here to help. Just reach out to our customer service team at service@rodiffymoissanite.com and we’ll be happy to assist you.

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Moissanite Jewelry Care

Daily Care

Fill Up A Bowl With Warm Water
Add Gentle Dish Soap
Let The Ring Soak For 10 Min
Gently Scrub With A Soft Toothbrush
Rinse Off
Pat It Down Gently

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Home Cleaning

Bring it back to the basics. You should complete a weekly home cleaning routine to keep your moissanite jewelry sparkling at its finest. Soak your moissanite jewelry in warm water for 10 minutes with gentle dish soap. Grab a soft toothbrush and gently scrub those hard-to-reach areas (while being cautious around the prongs). Once your jewelry is looking its best, you can rinse it off and leave it to dry.

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Jewelry Cleaner Recommendations

Apply the product to the surface of your moissanite stone using a clean cloth and rub gently. You may need to leave it on for a bit and scrub with a soft toothbrush until the build-up is gone (this may require some elbow grease depending on how much is stuck on there).

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Design Your Dream Ring

Rodiffymoissanite Jewelry offers a fully bespoke service where you can create a piece that reflects your personal story. You may choose from moissanite, natural diamonds in various shapes and colors, along with metals such as sterling silver, 10K–24K gold, or platinum, with optional rose, yellow, white, or black gold plating.

Simply share your preferred design or an inspirational photo, and our designer will craft a custom piece tailored to your vision. Custom orders take around 10–15 business days. For inquiries or to begin your design, please contact us at service@rodiffymoissanite.com

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FAQs

Will this ring look fake or overly flashy in real life?

No. Moissanite is known for its bright, clean sparkle that closely resembles a diamond in real life.

Unlike lower-quality stones, our D color moissanite appears clear and elegant, not cloudy or “rainbow-like.” In natural light, most people cannot tell the difference without special tools.

Many customers choose moissanite specifically because it looks luxurious without feeling flashy.

How does moissanite compare to a real diamond?

Moissanite and diamonds are both premium gemstones, but they shine in different ways.

Moissanite has more fire (sparkle) than a diamond
It is nearly as hard (9.25 on the Mohs scale vs. diamond’s 10)
Visually, they are extremely similar to the naked eye
Moissanite offers exceptional value, often costing a fraction of the price

It’s a popular choice for modern brides who want beauty, durability, and smart value.

Is moissanite durable for daily wear?

Yes. Moissanite is one of the hardest gemstones available and is highly resistant to scratches and chips.

It’s suitable for daily wear, including engagement rings and wedding bands, and holds up well with normal activities.

With proper care, your ring will maintain its brilliance for years.

Will the metal plating fade or wear off over time?

Our rings are crafted with high-quality plating designed for long-lasting wear.

Like all plated jewelry, the lifespan depends on wear habits, but with normal use and proper care, the finish remains beautiful.

To extend longevity, we recommend:

Removing the ring before heavy physical activity
Avoiding contact with harsh chemicals
Storing it in a dry place when not worn

What if I order the wrong ring size?

No worries at all. We offer a 30-day easy return and exchange policy.

If the size isn’t right, simply contact our support team and we’ll help you exchange it quickly and smoothly.

We also provide a detailed ring size guide to help you choose confidently.

Rodiffy Moissanite Stone

Moissanite, a gem-quality silicon carbide, resembles diamond but is a superior alternative. It offers exceptional fire and brilliance, and its hardness makes it ideal for heirloom-quality jewelry. Our Moissanites are expertly cut and polished to a higher standard than many diamonds found in engagement rings.

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Customers highly praised this 4.0 Ct round cut moissanite promise ring with 6 prong white gold setting. Shoppers loved the "beautiful sparkle" and elegant design. The 6 prong setting was highlighted for making the stone "stand out" and look secure. Customers described it as "perfect," "stunning," and "luxurious" with excellent light reflection. All reviews were 5-star.

The 6 prong setting really makes the stone stand out. I'm obsessed with the sparkle!
The round cut moissanite shines beautifully in the white gold setting.
The 4.0 Ct stone looks stunning, and the 6 prong design is so classic and elegant.

5 stars: 953 (99%)
4 stars: 9 (1%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Some of the reviews shown are from related products the merchant grouped with this one.

The six-prong setting gives me extra peace of mind, and the ring still looks light and open.

The six-prong setting gives the round center a secure and beautifully defined outline.

I usually wear silver, but this warm gold color changed my mind. It looks lovely against my skin.

This ring is beautiful and so comfortable! I wear it every day and it still shines.

Excelente

She was very pleased. I hadn't seen her smile like that in a long while. Thank you, Rodiffy.

Really happy with this ring. It showed up fast and fits comfortably every day.

I’m in love with it!
Looks real, feels great and absolutely beautiful!

I am in love with this ring. I just can't get enough of it. I am so coming back for new stuff, absolutely fantastic work guys!

Love it. The way the lighting reflects off the ring is amazing.

The 3.0 ct stone gives it presence without being too flashy.

This promise ring feels very thoughtful and meaningful.

Beautiful promise ring—classic design with amazing sparkle. Shipping was fast too!

Absolutely in love with this ring! The 6 prongs give it such a strong, elegant look, and the stone is just the right size.

The 3.0Ct stone is breathtaking! The sparkle is unreal and the 6 prong setting feels very secure.

My boyfriend surprised me with this promise ring and I cried happy tears. It’s perfect.

This yellow gold band is so elegant and complements the moissanite perfectly. Love it!

I was amazed at the brilliance of the stone. It looks just like a high-end diamond.

The sparkle is unreal—better than I imagined!

Absolutely beautiful ring. Highly recommend.

Absolutely beautiful ring

Fits perfectly and stacks well with my wedding band.

The round cut is just dazzling in natural light.

Love the round shape—it feels unique and modern.

Band feels solid and durable.

Moissanite 4.0Ct Round Cut 6 Prong White Gold Promise Ring

✨ Build Your Perfect Stack

Size Guide

If You Have An Existing Ring

If Not, Measure Your Finger

Shipping & Returns

Delivery & Shipping

USA

30-Day Returns & Exchanges Policy

Moissanite Jewelry Care

Daily Care

Home Cleaning

Jewelry Cleaner Recommendations

Design Your Dream Ring

FAQs

Rodiffy Moissanite Stone

Every order comes beautifully packaged, with each piece handcrafted to capture the joy, love, and memories you cherish.

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