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.
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.
18K Gold - 750 Gold
Ideal balance of durability and luxury, containing 75% pure 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.
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!
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:
Fire (Dispersion) of lab grown diamonds:
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:
Fire (Dispersion) of Exo diamonds:
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 Sapphire
Composition: Both natural and lab-grown sapphires share an identical chemical makeup of aluminum oxide.
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.
Clarity Grade
Clarity evaluates a diamond’s freedom from internal and external clarity characteristics which occurred during formation, polishing, or wear and tear.
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.
Carat Weight
The weight of a diamond is expressed in carats. One carat is roughly equal to 200 milligrams.
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.
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.
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.