Selection and Handling Standards for Natural, Untreated Diamonds
At our store, we primarily offer natural, not lab-grown diamonds with no artificial treatment, selected through in-person inspection, rather than relying solely on the information stated in grading reports.
RECEPTION’s Diamond Selection Standards
※Examples of treatment: heating, irradiation impregnation, coating, etc.
・ We handle only natural diamonds.
・ All diamonds we offer are untreated.
・ We handle both natural color diamonds and colorless diamonds.
For more information on colorless diamond clarity, please see “Flawless Diamonds and Clarity.”
・ Sorting reports and grading reports are used as one part of our selection process. Each diamond is selected based on physical inspection, with attention to its individual color, shape, and character.
Our Selection Points
・ Color：color intensity, areas where the color appears weaker, and the first impression when viewed in person
・ Shape：the beauty of the outline and how the shape affects the appearance of the color
・ Clarity Characteristics：cloudiness and any visual impact on the overall appearance
Additional Notes on Selection
Color Grade Basics
Natural color diamonds are diamonds with visible body colors, such as pink, yellow, and blue.
While colorless diamonds are evaluated by the 4Cs, color is especially important when evaluating natural color diamonds.
Color grades indicate the depth and vividness of the color, using nine levels such as Fancy Light, Fancy, Fancy Intense, Fancy Vivid, and Fancy Deep.
Report Information and Actual Appearance
Even with the same color grade, the visual impression can vary depending on how the color appears within the stone and its shape.
Likewise, even stones with the same shape can look different depending on their lines and curves, affecting how the color appears.
For this reason, we do not judge diamonds by the report alone. We review the color origin (Natural), color grade, and shape, then select each stone by looking at its actual color, shape, and brilliance as a whole.
Fancy Vivid Purplish Pink
Pink Diamonds in the Same Color Grade
Differences that are difficult to notice in a single stone become clearer when placed side by side, especially in how the color appears.
Fancy Vivid Yellow
Ywllow Diamonds in the Same Color Grade
Even within Fancy Vivid Yellow, each stone has its own character—from bright, vivid tones to lighter colors closer to Fancy Intense Yellow, and deeper tones closer to Fancy Deep Yellow.
Pear-Shaped Diamonds
Same Shape Comparison
Even within the same pear shape, the impression can vary depending on the curve and overall proportions.
Once set into jewelry, these differences in outline are reflected in the finished piece.
Rarity — The Same Stone May Not Come Along Again
Natural color diamonds are one-of-a-kind, and no two stones are exactly the same.
When a stone strongly catches your eye, it may be difficult to find another with the same color, shape, and overall impression.
Even when stones are cut from rough material with a similar color, the way the color appears can vary depending on the shape.
We consider stones that show strong color beyond the characteristics of their shape to be especially rare.
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A Remarkable Trio
Three natural pink diamonds, each around 0.1 ct, with closely matched sizes, pear shapes and color tones, all displaying strong Vivid-grade color. Even one diamond meeting these conditions is rarely available; finding three together is exceptional.
About Images and Videos on This Website
Please note that photographs and videos may not always fully reproduce the actual color, brilliance, and overall appearance of a diamond.
We make every effort to present each stone as accurately as possible, but its appearance may vary slightly when viewed in person.