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Onyx Oslo

Engagement Exo Diamond Ring in Radiant Cut

Engagement Exo Diamond Ring in Radiant Cut

Jewelry material
Ring size
Regular price kr7,999.00 NOK
Regular price Sale price kr7,999.00 NOK
Sale Sold out
Taxes included. Shipping calculated at checkout.

SKU:1733782441037

Low stock

4 total reviews

  • Certificate

We provide GIA or IGI certificate with lab grown diamonds and GRA or Diamond certificate with Exo diamond jewelry.

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Radiant-Cut Exo diamond Engagement Ring 

Unleash your love with the Engagement Exo Diamond Ring. Featuring a radiant cut exo diamond in silver, white gold, 18K or 22K gold, this luxurious ring comes with a lifetime guarantee. Plus, our ethical and sustainable diamonds give you a guilt-free way to shine!

Engagement Ring specification:

  • Weight: Silver has 3.5 grams 925 silver and Gold in any fineness grade can be 3.5-4.5 grams.
  • Material:
  1. Sterling Silver (S925) 
  2. Gold 18K
  3. White gold
  4. Gold 22K 
  5. Gold 22K with lifetime guarantee.
  • Stone: 1 carat radiant cut exo diamond stone.
  • Exquisite Radiance: Showcasing a radiant-cut exo-diamond gemstone with brilliance that rivals the finest diamonds, it shimmers with every glance.
  • Immaculate Clarity & Color: Graded VVS1 for clarity and D-Colorless, ensuring unmatched purity and exceptional luminosity.
  • Luxurious Composition: Crafted from sustainable materials with choice of silver with gold palting, 18 carat gold, 22 carat gold or 22 carat with lifetime guarantee.
  • Precision Setting: Meticulously positioned stones maximize brilliance, creating a dazzling effect for life’s most cherished moments.

This engagement ring is more than jewelry. It’s a symbol of love and legacy. Perfect for special occasions and daily elegance, it guarantees lasting brilliance and a style that transcends trends.

Make Your Moment Shine: Choose the Radiant-Cut Exo Diamond Engagement Ring to celebrate your commitment with a ring that reflects your love and sophistication. 

Custom jewelry with lifetime guarantee

Custom jewelry service

Welcome to our exclusive jewelry design service. This guide will walk you through our customization options, materials, and design possibilities. Whether you're looking for a timeless engagement ring or a unique piece of jewelry that tells your story, we're here to bring your vision to life.

Jewelry customization service picture showcasing a ring in a box over trees with snow. Get your fine jewelry custom made with us.

About us

Who we are

A jewelry brand specialized in Exo-Diamond, Exo-diamonds are sustainable and perfect alternative to natural diamonds.

Our mission

Two Most prominent missions for us are:

1. Supporting girls’ education by donating 1% of our annual profits to educational initiatives for women.

2. Working toward carbon neutrality by incorporating carbon credits into our operations.

How we are described by a New York magazine

"When you wear Onyx Oslo you are fitted with splendid art – and love for art. Oh, the smiles you will get when asked where you got such a wonderful piece." Times Squares Chronicles

 

Jewelry Materials

14K White Gold - 585 Gold

Perfect for contemporary designs, our white gold pieces offer a modern, sophisticated look.

Contains 58.3 % pure gold mixed with white metals a visual description is shown in figure below.

Infographic explaining gold content in 14 carat or 585 gold and the other metal ratio in a ring

18K Gold - 750 Gold

Ideal balance of durability and luxury, containing 75% pure gold.

Gold and other metal ration shown in a ring infographic, depicted in ring filling for 18 carat gold or 750 Gold.

21K gold - 875 Gold

Higher gold content (87.5%) offering a richer yellow color. It is a perfect balance between gold content and other materials to increase it's strength.

21 carat or 875 gold ratio of other metals and pure gold shown in a ring filling infographic.

23K Gold - 958 Gold

Our premium option with 95.8% pure gold, perfect for traditional designs and long lasting masterpieces. This is the type of material which is a family heirloom!

23 carat gold or 958 gold fineness ratio of gold and other metals shown in a ring infographic.

Gemstones

Lab Grown Diamond

Composition: Carbon crystal lattice

Manufacturing Conditions: Temperature: 900 °C to 1400 °C Pressure: 5-6 Giga pascal.

Fire and brilliance: With refractive index of 2.42 These diamonds exhibit dazzling fire and brilliance, dispersing light and sparkling with the same optical quality as natural diamonds.

The pictures below show fire and brilliance of lab grown diamonds, further down the webpage you'll find them compared to Exo Diamond. Ask us the question if this is difficult to understand and you would like to see the difference by your own eyes in our showroom in Oslo.

Brilliance of lab grown diamond: 

Diamond brilliance shown for lab grown diamond

Fire (Dispersion) of lab grown diamonds: 

Diamond fire and dispersion shown under blue light for lab grown diamond

Exo Diamond

Composition: Carbon crystal lattice

Manufacturing Conditions: Temperature: 2000 °C to 2400 °C Pressure: 1.5 - 13 kilo pascal.

Fire and brilliance: Due to it’s high refractive index (2.65- 2.69) It has more fire and brilliance than lab grown diamonds. Excellent diamond cuts further enhance the brilliance.

Brilliance of Exo diamond: 

Round cut exo diamond brilliance is shown from the top of gem

Fire (Dispersion) of Exo diamonds: 

Exo diamond fire and dispersion shown with rainbow colors for round cut exo diamond

Lab Emerald

Composition: Both lab-grown and natural emeralds are chemically identical. composed of beryl with the same crystal structure.

Impurities: Lab emerald have much less impurities than natural emeralds.

Lab emerald stone shown with it's green color

Lab Sapphire

Composition: Both natural and lab-grown sapphires share an identical chemical makeup of aluminum oxide.

Lab sapphire stone shown with its blue color

Diamond 4C's The essential information

Color Grade

Color evaluates how colorless, near-colorless or yellow-brown tinted it is on a scale of D-Z.

Diamant 4c color farge grad

Clarity Grade

Clarity evaluates a diamond’s freedom from internal and external clarity characteristics which occurred during formation, polishing, or wear and tear.

Diamant clarity grad 4cs

Cut Grade

The cut of a diamond includes everything humans did to convert it from a rough crystal to a polished gemstone capable of brightness, fire, contrast and scintillation.

Diamant 4c cut grade
Diamant reflections 4c cut grade

Carat Weight

The weight of a diamond is expressed in carats. One carat is roughly equal to 200 milligrams.

Diamant carat vekt 4cs
Diamant carat vekt sammenligning 0.5 ct 0.75 ct, 1ct, 2 ct, 5ct in 1 picture bild

Diamond cuts

Most common diamond cuts

Diamonds are cut by humans and we have been experimenting with what looks beautiful and what is good for shine and brilliance of diamonds. Most common diamond cuts are Round cut diamond, Emerald cut diamond, Baguette cut diamond and Radiant cut diamonds. 

Selection of this cut influences how it looks in certain diamond engagement ring or diamond wedding ring. What works and looks beautiful in certain ring, necklace or earring does not necessarily look as amazing in a bracelet design. It is all about the complete look and feel and not just diamond cuts. Most common diamond cuts are shown in the picture below.

Diamond cuts Round, radiant, baguette, emerald Diamond 4c cut shapes

Common ring settings

Remember we discussed it is all about the complete look? Rings especially engagement rings and wedding rings with diamonds are traditionally placed in certain settings which ensures that the stone whether it is a diamond or any other gemstone does not fall but also radiates the feel and looks as amazing as possible. 

The selection of ring setting also applied to earrings, necklaces and bracelets and should be decided on what you think will be perfect for your jewelry.

Diamond engagement ring and diamond wedding ring settings

The following video shows how a goldsmith is polishing a diamond wedding ring.

Versatility in Design

Our diamonds and gemstones can be incorporated into any customized jewelry piece:

  • Engagement rings
  • Wedding rings or wedding bands
  • Pendants
  • Earrings
  • Bracelets
  • Studs
  • Custom pieces

    Start your journey of personal unique jewelry

    Your journey to the perfect piece of jewelry begins here. Each creation is crafted with precision, passion, and attention to detail. Fill the form below to schedule a consultation or visit us at our showroom and bring your vision to life.

    Contact us or Visit us at our showroom in Frogner, Oslo to meet and discuss your requirements.



    Book your jewelry customization meeting:

    Select a Meeting Type

     

    Customer Reviews

    Based on 4 reviews
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    L
    Linnea Hansen
    Refined Mastery

    An exceptional piece that speaks of incredible attention to detail. Just shy of absolute perfection, but absolutely stunning nonetheless.

    H
    Hanna Pettersen
    Practical Design

    Offers good value with a straightforward and attractive approach. Nothing spectacular, but certainly reliable and pleasing.

    M
    Martin Andersen
    Valentine’s Day Bliss

    The perfect way to say “I love you.”

    J
    Jonas Andersen
    A Dream Engagement Ring

    I couldn’t have found anything better.