1.50 CT Marquise Lab-Grown Diamond Triad Engagement Ring
1.50 CT Marquise Lab-Grown Diamond Triad Engagement Ring
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● Description
Discover Elegance
Experience the pinnacle of sophistication with our exquisite lab-grown diamond engagement ring, crafted with the highest ethical standards and supreme quality.
Stunning Marquise Diamond
This stunning piece features a magnificent marquise-shaped diamond, offering brilliance that captures every gaze. Choose from a selection of stone weights, ensuring you find the perfect match for your desires.
Exceptional Quality: Our diamonds boast exceptional color gradations, available in D-VVS1, E-VVS1, or EF-VS1, promising purity and an exquisite sparkle that is truly captivating.
Complementary Side Stones
The ring is enhanced with side stones, also crafted from lab-grown diamonds, which complement the centerpiece with their DEF color and VS clarity. These additional marquise stones provide a total carat weight of 0.75, ensuring a harmonious and breathtaking design.
Customization Options
Set in your choice of lustrous white, yellow, or rose gold, this ring is available in various purities of 10KT, 14KT, and 18KT, allowing you to tailor the piece to your personal preferences. Every detail has been meticulously considered to offer an exquisite and timeless addition to your jewelry collection.
Exclusive Benefits
- An elegant jewelry box
- Certificates of authenticity
- A comprehensive jewelry cleaning kit to maintain the ring’s brilliance
- A gift card for future purchases
- A surprise gift
- A lifetime limited warranty, ensuring peace of mind for years to come
- Complimentary engraving service available in either color or black
A Symbol of Ethical Luxury
This engagement ring is not just a symbol of love but a testament to craftsmanship, sustainability, and beauty, making it a perfect choice for those who cherish ethical luxury.
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





