1.20 CT Marquise Lab Grown Diamond Gold Solitaire Ring
1.20 CT Marquise Lab Grown Diamond Gold Solitaire Ring
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● Description
Elegant Engagement Ring
Indulge in the epitome of elegance with our exquisite engagement ring, a testament to timeless beauty and unparalleled craftsmanship.
Center Stone
At its heart lies a breathtaking lab-grown diamond, celebrated for its ethical origins and best-in-class quality. This stunning marquise-shaped gem can be customized to your desired stone weight, ensuring a personal touch and perfect fit for your love story. Choose between the pure, crystalline brilliance of D, VVS1 or E, VVS1 or the luminous glow of EF, VS1 color grades, each meticulously selected to captivate and enchant.
Metal & Craftsmanship
Crafted in solid gold, available in the luxurious shades of white, yellow, or rose, its purity ranges from 10KT to the sumptuous 18KT, allowing you to select the metal that best embodies your cherished bond. Each ring bears the hallmark of authenticity and precision, offering peace of mind with our authenticity stamping.
The Complete Experience
Your purchase is not simply a ring; it is an all-encompassing experience. It arrives in a beautifully crafted jewelry box, accompanied by:
- Certificates affirming its quality and provenance
- A thoughtful jewelry cleaning kit to maintain its sparkle
- A gift card for a future purchase
- A delightful surprise gift
- Lifetime Limited Warranty for your everlasting assurance
Personalization
To further personalize this symbol of commitment, enjoy complimentary engraving in color or black, making it uniquely yours.
Iconic Expression of Love
Let this ring be the iconic expression of your eternal love, beautifully crafted to last a lifetime.
Customization
Customization
Want to change this design or don’t see what you want? We can customize most existing designs or custom make a ring from scratch.
Start designing your custom piece by filling out this form.
Shipping Information
Shipping Information
Each product is made to order and will ship in approximately 3-4 weeks. For special requests please contact us. We try our best to accommodate. All products ship with signature required, tracking, and insurance through FedEx.
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Warranty Repair
Warranty Repair
The Altered Carbon has mastered the craft of fine jewelry, setting the standard in the industry with its unparalleled warranty and service program. Our dedication to excellence ensures that each piece reflects our commitment to quality and customer satisfaction, making us a leader in the jewelry world.
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● Virtual Appointment
See The Altered Carbon up close with a personal appointment. Explore our jewelry in person through your device. Book a Call.

Size Chart
| US | UK / Australian Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3.5 | G | 14.5 | 45.5 |
| 4 | H½ | 14.9 | 46.8 |
| 4.5 | I½ | 15.3 | 48.0 |
| 5 | J½ | 15.7 | 49.3 |
| 5.5 | K½ | 16.1 | 50.6 |
| 6 | L½ | 16.5 | 51.9 |
| 6.5 | M½ | 16.9 | 53.1 |
| 7 | N½ | 17.3 | 54.4 |
| 7.5 | O½ | 17.7 | 55.7 |
| 8 | P½ | 18.1 | 57.0 |
| 8.5 | Q½ | 18.5 | 58.3 |
| 9 | R½ | 19.0 | 59.5 |
| 9.5 | S½ | 19.4 | 60.8 |
| 10 | T½ | 19.8 | 62.1 |
| 10.5 | U½ | 20.2 | 63.4 |
| 11 | V½ | 20.6 | 64.6 |
| 11.5 | W½ | 21.0 | 65.9 |
| 12 | X½ | 21.4 | 67.2 |
| 12.5 | Z | 21.8 | 68.5 |
| 13 | Z+1 | 22.2 | 69.7 |
| KA Size | Wrist Diameter (in) | Wrist Diameter (cm) |
|---|---|---|
| Extra Small | 4.76 – 5.25 | 12.1 – 13.3 |
| Small | 5.26 – 5.75 | 13.4 – 14.6 |
| Medium | 5.76 – 6.25 | 14.6 – 15.9 |
| Large | 6.26 – 6.75 | 15.9 – 17.1 |
| Extra Large | 6.76 – 7.25 | 17.2 – 18.4 |
| Extra Extra Large | 7.26 – 7.75 | 18.4 – 19.7 |
| Extra Extra Extra Large | 7.76 – 8.25 | 19.7 – 21.0 |
| Length (in) | Length (cm) |
|---|---|
| 16 | 40.50 |
| 18 | 45.75 |
| 20 | 50.75 |
| 24 | 61.00 |
| 30 | 76.25 |
| 36 | 91.50 |
Lab Grown Diamonds
Make Style Effortless — Lab grown diamonds offer an affordable alternative for sparkle making brilliant style effortless.
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What’s Included?
Our extensive collections span every generation and price point, allowing us to connect with our customers' celebrations at each stage of their lives.
Shop Confidently
Experience peace of mind with our 1 year exchange policy on all engagement rings for an equal or greater value.
Unique Serial Number
The Altered carbon jewelry piece bears a unique serial number, reflecting its distinct design and connecting you to its origins.
Certificate of Authenticity
The serial number allows you to access a digital Certificate of Authenticity showcasing the GIA verified diamonds, ensuring the authenticity and craftsmanship of your piece.
Sustainability
Ethically sourced fine jewelry crafted from recycled gold materials.
Let customers speak for us
Virtual Appointment
Discover your perfect engagement ring at a virtual showroom appointment. Explore our most sought-after designs





