Round Brilliant Cut Loose Diamond

The absolute gold standard of ultimate sparkle and timeless elegance. This loose, round brilliant cut lab-grown diamond (Round Brilliant Cut) is the absolute masterpiece among diamond shapes. The round brilliant has been designed through decades of mathematical and optical perfection to reflect more light than any other cut.

As a loose diamond, this stone offers the ultimate creative freedom and flexibility. Whether you are looking for the perfect center stone for an iconic solitaire engagement ring, a timeless pendant for a necklace, or want to purchase the diamond as a valuable, ethical investment; the round brilliant is a universal style icon that never goes out of fashion and is guaranteed to steal the show.

Details

Type: Loose certified diamond (Lab-Grown)
Cut: Round Brilliant Cut (Round brilliant cut)
Available carat sizes: Standard directly selectable in 1 ct, 2 ct, 3 ct and 4 ct (other specific carat weights and millimeter dimensions are available upon request at all times)
Diamond quality: Absolute top class D color grade with VS/VVS clarity – the highest achievable degree of perfect colorlessness for an ice-white base, combined with exceptional microscopic purity.
Cut quality, Symmetry & Polish: Excellent (the highly coveted Triple Excellent standard for the ultimate light reflection)
Suitable for: Classic engagement rings, solitaire pendants, luxury stud earrings, custom-made jewelry or as a loose investment.

Why choose this Round Brilliant Cut diamond

Maximum Sparkle (Fire & Brilliance): No other diamond shape matches the light output of the round brilliant. Due to the perfectly calculated angles, virtually all incident light is reflected directly back to the eye through the top.
The Absolute Top in Color & Purity: By exclusively choosing the highly coveted D-color, you are assured of a diamond without any yellow or warm undertones. Combined with the high VS/VVS purity, the stone is completely free of imperfections visible to the naked eye.
Maximum Creative Freedom: Buy the diamond loose to design your ultimate dream jewelry together with our goldsmiths, or take the stone to your own trusted jeweler.
Ethical & Sustainable Luxury: 100% conflict-free and ecologically responsibly produced, with exactly the same physical, chemical and optical properties as a mined diamond.

Why Cha Diamonds

At Cha Diamonds, we believe that luxury should be conscious, transparent and accessible. Every loose diamond is selected and inspected with the utmost care to offer you a high-quality and worry-free experience.

Certified Top Quality: Every diamond from 0.50 carats is delivered with an official and globally recognized certificate (such as IGI or GIA). This is your independent guarantee of the exact color, clarity and cut quality.
Free & Fully Insured Shipping: Precious stones require the best care. We always ship our loose diamonds completely free of charge and fully insured via specialized transport.
Conflict-Free & Traceable: Our lab-grown diamonds are 100% traceable and produced with respect for people and the environment.
Luxury & Secure Packaging: Your loose diamond is delivered in a special, high-quality presentation box in which the stone can be safely admired and stored.
Quality Guarantee: Cha Diamonds unconditionally stands behind the authenticity, purity and the exceptional cut standards of every diamond that leaves our atelier.

Lab-grown diamonds are 100% real diamonds with the same chemical, physical and optical properties as natural diamonds. They have the same brilliance, hardness and durability; only their origin is different.

✔ 100% real diamond

✔ Conflict-free production

✔ A more sustainable choice

✔ The same brilliance as natural diamonds

✔ Excellent value for money

Want to know more? Read our comprehensive guide to lab-grown diamonds.

We exclusively select high-quality lab-grown diamonds.

• D–F Color
• VS–VVS Clarity
• Excellent Cut (where applicable)
• Maximum brilliance

Each diamond is carefully selected for color, clarity, and cut.

Our lab-grown diamonds are graded according to internationally recognized diamond standards.

• Diamonds of 1.00 ct or more are supplied with an independent IGI or GIA certificate for the center diamond.

• Jewelry with diamonds smaller than 1.00 ct is supplied with an IGI or GIA certificate for the entire piece of jewelry, confirming the quality and specifications of the lab-grown diamonds used.

This ensures transparency, quality, and craftsmanship with every purchase.

We stand behind the quality of every piece of jewelry.

✓ Solid 14K or 18K gold
✓ High-quality lab-grown diamonds
✓ Lifetime guarantee on the intrinsic properties of the diamond
✓ Expert service and support

Our jewelry is designed to last a lifetime.

Regular Maintenance

Rinse your jewelry briefly with lukewarm water and mild soap. Use a soft brush to clean corners and settings. Afterwards, carefully pat them dry with a lint-free cloth.

Annual Check-up

Have your most important gemstones checked by a jeweler at least once a year. Check if clasps, pins, and settings are still secure. Professional polishing keeps diamonds and other gemstones sparkling.

Protection and Storage

Remove jewelry when exercising, sleeping, and doing household chores. Avoid contact with perfume, creams, and cleaning products. Store each piece of jewelry separately, for example, in a soft pouch or jewelry box.

Tip: Diamonds are the hardest material, but they can scratch each other. Make sure they never lie directly against each other.

With this simple care, your jewelry collection will remain radiant and undamaged for a long time.

The warranty does not apply to wear and tear, improper use, or failure to follow care instructions.

Sustainable Diamonds

Our lab-grown diamonds are real diamonds, with the exact same chemical, physical, and optical properties as natural specimens. The difference lies in their origin: carefully controlled and completely sustainably produced.

This method yields diamonds of exceptional clarity, without the inclusions or imperfections that can occur in natural diamonds. The result is brilliant, radiant stones that reflect light optimally.

In addition, all our diamonds are 100% conflict-free, fully traceable, and environmentally friendly manufactured.