Lab grown coloured diamonds are a popular choice for designers seeking sustainable, high-brilliance stones with consistent quality. This guide highlights five top options, detailing who they’re best for, what makes them stand out, and practical considerations for selection and use. Ideal buyers include designers crafting custom pieces, small-batch producers, and buyers seeking vivid colour without the environmental impact of mined diamonds.
| Product | Best For | Key Benefit |
|---|---|---|
| Kiokori Lab Grown Radiant Cut Diamonds | Designers requiring calibrations in radiant cuts | Excellent precision cuts and consistency |
| IGI Certified Round Cut 1 Ct (D-E) VVS-VS | Engagement rings and fine jewelry | High color and clarity for standout brilliance |
| Natural Lab Grown Diamond, 2 Ct Round (D) VVS1 | Classic, high-end pieces | Top color grade paired with near-flawless clarity |
| Lab-Grown Blue Diamond 1.31 Ct Fancy Intense | Statement pieces with unique colour | Distinct blue hue with IGI certification |
| 2×2 mm 1.0 Ct Loose Diamonds (D, VVS1) | Small stones for melee accents | Excellent color and clarity in tiny calibrations |
Kiokori Lab Grown Radiant Cut Diamonds

Product overview: Lab Grown Radiant Cut Diamonds in multiple sizes, designed for precision cuts and consistent quality. These stones are ideal for custom creations, statement pieces, and smaller production runs where uniform brilliance matters.
- Best for precise fit and symmetry in calibrated settings.
- Radiant cut combines round brilliance with emerald-cut silhouette for sharp facet definition.
- Calibrated diamonds help avoid gaps in settings and ensure a snug mount.
Caution: Data notes a focus on quality and precision; verify the exact carat total and cut grade for your design needs before ordering in bulk.
IGI Certified Lab Grown Round Cut 1 Ct

Product overview: Round cut, 1 carat lab grown diamond with D-E color and VVS-VS clarity. Designed for fine jewelry making, including rings, earrings, and pendants, with a focus on achieving flawless appearance and minimal visible inclusions.
- Best for wedding and anniversary pieces seeking near-colorless brilliance.
- IGI certification provides assurance of cut and clarity characteristics.
- Edgy: Data notes a typical color-clarity range; confirm exact values for inventory batches.
Limitation: The description mentions a range in lab grown color and clarity; check current stock for precise grading before production.
Natural Lab Grown Diamond – 2 Ct Round

Product overview: Certified round cut, D color, VVS1 clarity, 2 carats. Marketed as an eco-friendly, ethical alternative to mined diamonds with identical physical properties and brilliance.
- Best for classic, high-end jewelry designs seeking top color and near-perfect clarity.
- D color provides a near-colorless appearance that enhances fire and sparkle.
- Consider availability in matching pairs if designing matched earrings or set pieces.
Limitation: This stone is marketed as a “natural lab-grown” diamond; verify the lab and certification details to align with your project’s provenance needs.
Lab-Grown Blue Diamond 1.31 Ct Fancy Intense

Product overview: 1.31 carat lab-grown blue diamond with a fancy intense blue-green hue and VVS2 clarity. IGI certified and described with a flower modified brilliant cut that enhances sparkle and glow.
- Best for statement pieces or highlight stones in three-stone designs.
- Blue hues can be striking focal points in modern jewelry concepts.
- Limitation: Colour perception can shift under different lighting; plan lighting considerations in design sketches.
IGI Certified Round Cut 1 Ct Lab Grown

Product overview: IGI certified 1 carat lab grown round diamond, with F-G color and VVS-VS clarity. Suitable for crafting refined jewelry including engagement rings and classic pendants.
- Best for classic designs that require a balance of color and clarity.
- IGI certification adds a layer of confidence in cut and clarity claims.
- Limitation: As with many loose diamonds, ensure precise table size and pavilion depth for your setting’s fit.
Buying Guide: Key Considerations For Lab Grown Coloured Diamonds
- Certification matters: Look for IGI or other reputable labs to validate color, clarity, and cut.
- Color grading: D-F colors are near-colorless; blue and other vivid colours may appear differently in different lighting.
- Clarity and inclusion visibility: VVS and VS ranges offer clean appearances with minimal inclusions; consider setting and mounting to minimize visibility.
- Cut style: Radiant, round, and fancy shapes affect brilliance and fire; choose shapes to maximize the stone’s colour and facet pattern in the final piece.
- Provenance and ethics: Lab-grown stones offer ethical benefits and lower environmental impact; confirm sustainability claims when possible.
- Setting compatibility: Calibrated stones help achieve precise, snug settings; verify table width and pavilion depth for each piece.
- Budget and production: For designers, batch consistency reduces production risk; ensure supply aligns with design timelines.
Frequently Asked Questions
- What makes lab grown coloured diamonds different from mined stones?
– Lab grown stones are created in controlled environments using HPHT or CVD methods, offering identical chemical and physical properties with typically lower environmental impact. - Are IGI and GIA certifications necessary for lab grown diamonds?
– Certification provides independent verification of color, clarity, and cut; many buyers prefer IGI for lab grown stones, though GIA-approved labs are also common. - Is color stability an issue with colored lab grown diamonds?
– Colour perception can be influenced by lighting; consistent calibration and higher colour-grade ranges help maintain appearance in various settings. - Can lab grown diamonds be used in engagement rings?
– Yes, especially when paired with high-cut precision and near-colorless tones; many designs emphasize colour for a modern aesthetic. - What should I consider when designing with small lab grown stones?
– Calibrated melee or small round stones ensure precise setting and unified sparkle along the piece’s surface. - Do lab grown blue diamonds have different care needs?
– Care is similar to other diamonds, but blue stones may show colour shifts under certain lighting; use appropriate cleaning and display considerations.