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Complete Guide on Fancy Color Diamond Grading for Lab Diamonds Importers

Color is king in the realm of colored lab grown diamonds. Different from white or colorless lab grown diamonds, fancy lab diamonds display stunning vibrant hues from pink and blue to yellow and even rare reds. Extraordinary lab grown diamonds are evaluated as fancy color lab diamonds. A full grasp of knowledge that how color is evaluated helps boutique stores, custom ateliers and independent designers a lot in fancy colored diamonds wholesale.

fancy color wheel

What Is a Fancy Color Lab Grown Diamond?

Fancy color lab grown diamonds display stable hues with identical physical, optical and chemical properties to natural diamonds. They are grown in controlled environment through HPHT (High Pressure High Temperature) and CVD (Chemical Vapor Deposition) technology. For wholesalers, importers and distributors, fancy color lab diamonds are gaining popularity for high margins and stable supply, affordable pricing and complete color variety.

What Defines a Fancy Color Lab Grown Diamond?

Fancy colored lab grown diamonds exhibit different hues with colorlessness like pink, blue, green, red, yellow, etc. They present distinct and noticeable color saturation that exceeds faint incident tint, complying with the official color classification criteria. At the same time, they maintain maintains the same crystal structure, refractive index and hardness as natural diamonds, without fake color coating.

Fancy lab diamond colors are formed by elemental doping during growth in general. Treated colors derive from post-growth irradiation and annealing. Fancy colors obtained by post-growth irradiation and annealing are permanently stable under normal wearing conditions and will not fade over time. All graded fancy lab diamonds certified by GIA, IGI or other authoritative labs are marked as Lab Grown following the same color grading system.

Three Dimensions of Color

Color evaluation for all fancy diamonds, both natural and lab-grown, relies on three core professional dimensions: Hue, Tone, and Saturation.

Diamond hue refers to the basic primary color of the diamond, including classic main colors like pink, yellow, blue and green. It also covers mixed modifier colors with ish suffixes, such as yellowish pink, purplish pink and greenish blue secondary hues.

Tone describes the lightness and darkness of the color, ranging from very light pale tones to medium, dark and deep tones. Tone directly affects visual perception and consumer preference, directly influencing wholesale pricing.

Saturation represents the purity and intensity of the color. It is the most critical factor determining the value and grade of a fancy diamond. High saturation means vivid, pure and intense color; low saturation presents weak, pale and grayish color. All fancy color grading standards are built on these three dimensions.

How Are Fancy Colored Diamonds Graded?

Fancy color wheel classifies the full spectrum of diamond colors into 27 unique categories, ranging from pure primary colors to blended hues. Primary hues include red, pink, purple, blue, green, yellow, orange and brown. Many exhibit secondary colors or modifiers, which appears in the hue name before primary colors. Gemologists evaluate tone and saturation together to assign colored diamond intensity. There are 9 official color intensity grades in ascending order:

Faint → Very Light → Light → Fancy Light → Fancy → Fancy Intense → Fancy Vivid → Fancy Dark → Fancy Deep.

Faintbarely noticeable color
Very Lighta soft wash of color
Lightmore obvious but still subtle
Fancy Lightclearly visible color
Fancybalanced, moderate color presence
Fancy Intensestrong, vivid color with noticeable depth
Fancy Vividexceptionally saturated and highly vibrant
Fancy Darkrich, dark color with strong saturation but reduced brightness
Fancy Deepvery dark color similar to deep but even lower lightness

Fancy Color Diamond Grading Chart – Color Intensity and Corresponding Meaning

Among them, Fancy Vivid and Fancy Intense are the most popular and high-value grades for wholesale and retail. Fancy Deep and Fancy Dark are favored for luxury custom jewelry, while Fancy Light and Fancy are cost-effective entry-level mainstream stock for distributors.

How to Start Procuring Fancy Color Lab Diamonds

For wholesalers, importers and distributors sourcing fancy color lab diamonds, follow these practical professional principles:

  1. Prioritize certified stones

Always select diamonds with GIA or IGI official fancy color grading reports. Avoid ungraded self-rated stones to prevent grade mismatch and customer complaints.

  1. Categorize inventory by color and grade

Keep stable stock of hot-selling series: yellow and pink fancy diamonds for bulk wholesale; blue, green and purple for high-end customized orders. Focus on stocking Fancy Intense and Fancy Vivid as core profit items.

  1. Distinguish inherent color vs treated color

Clarify color formation with suppliers. Inherent untreated fancy lab diamonds have higher stability and premium value, while irradiated treated ones are more cost-effective for mass market.

  1. Check color uniformity

HPHT fancy lab diamonds usually have more uniform color distribution, suitable for wholesale parcel trading. CVD stones may have slight color zoning, better for single piece customized sales.

  1. Build fixed grading procurement standards

Set your own purchasing threshold based on tone, saturation and cut, to stabilize quality and form consistent pricing system for long-term business.

The WholesaleLabGrownDiamonds website offer premium quality fancy color lab diamonds to collectors, investors, retailers or custom ateliers at competitive wholesale pricing.

FAQs

1. Is the color grading of lab grown fancy diamonds the same as natural ones?

Yes. GIA and IGI use exactly the same hue, tone, saturation and 9-level intensity grading standard for both lab grown and natural fancy diamonds. Only the origin marking is different.

2. Which color grade is most marketable for wholesale?

Fancy Intense and Fancy Vivid are the best sellers for premium markets; Fancy Light and Fancy are the most cost-effective for daily bulk wholesale.

3. What is the difference between inherent color and treated fancy lab diamonds?

Inherent color is formed by element doping during diamond growth with permanent stable color. Treated color is adjusted by irradiation and annealing, with stable daily use but lower collectible value.

5. What is the first thing importers should check when sourcing fancy lab diamonds?

Verify the official certificate color grade, confirm whether the color is natural inherent or post-treated, and check color uniformity to match your market positioning and customer demand.

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