0.25 Carat Round Brilliant Lab-Grown Diamond – 4mm

Discover the brilliance of a 0.25 carat lab-grown diamond that is optically, chemically, and physically identical to a natural diamond. Measuring approximately 4mm, this ethically sourced round brilliant lab diamond is hand-selected for exceptional cut, clarity, and color—perfect for fine jewelry, engagement settings, or custom designs.

Why Choose a Lab-Grown Diamond?

• 100% Real Diamond: Tests as a diamond on all professional testers
• Identical to Mined Diamonds: Same brilliance, hardness, and chemical structure
• Ethically & Sustainably Created: Grown in a controlled lab environment
• Superior Quality: Carefully hand-selected for cut, clarity, and color
• Affordable Luxury: Same beauty as natural diamonds at a fraction of the cost

How It’s Made

Our lab-grown diamonds are created from rough crystals using HPHT (High Pressure High Temperature) or CVD (Chemical Vapor Deposition)—sometimes both methods. These advanced technologies replicate the natural diamond growth process, producing a real diamond that matches mined diamonds in every way.

Diamond Specifications

• Carat Weight: 0.25 carat (approx. 4mm)
• Shape: Round Brilliant – Full Precision Cut
• Clarity: VVS-VS (eye-clean brilliance)
• Color: D/F (near colorless for maximum sparkle)
• Hardness: 10 on the Mohs scale
• Treatment: HPHT
• Origin: Grown in the USA

Diamond Report

• Species: Diamond
• Quantity: Choose from the dropdown menu
• Guaranteed to test as a diamond on all professional testers

Why MM Size Matters

Millimeter size is the most accurate way to determine how a diamond will appear when set. Carat weight may vary slightly depending on the proportions and cut of the stone.

Ethical. Sustainable. Brilliant.

Our lab-grown diamonds are an eco-friendly and conflict-free alternative to mined diamonds, offering the same beauty and durability without ethical concerns. Backed by a 100% Satisfaction Guarantee and Free Matching Service, they are perfect for engagement rings, earrings, or fine jewelry designs.