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Yellow diamonds are natural fancy colour diamonds that get their distinctive hue from nitrogen atoms trapped within the crystal structure during formation. The intensity of the colour ranges from Faint Yellow all the way up to Fancy Vivid Yellow — the most prized grade. The most vibrant stones are often referred to as canary diamonds and are highly sought after for engagement rings and statement jewellery worldwide.

Yellow diamonds are graded by the GIA (Gemological Institute of America) on a scale that runs from Faint → Very Light → Light → Fancy Light → Fancy → Fancy Intense → Fancy Vivid / Fancy Deep / Fancy Dark. The deeper and more saturated the colour, the rarer and more valuable the stone. At Japan Diamond, we offer a curated selection spanning Fancy Light to Fancy Vivid Yellow to suit a range of budgets and preferences.

Yes. Fancy colour diamonds as a whole are found in only about 1 in every 10,000 carats of diamonds mined. Within that group, stones graded Fancy Intense or Fancy Vivid Yellow are rarer still. While yellow diamonds are more accessible than pink or red diamonds, high-quality specimens with strong saturation and excellent clarity remain genuinely scarce — making them both a beautiful choice and a sound long-term investment.

Yes. Every yellow diamond we carry is accompanied by a grading report from the GIA (Gemological Institute of America) or CGL (Central Gem Laboratory). The certificate independently verifies the stone's colour grade, clarity, carat weight, cut, and other key characteristics — giving you complete confidence in your purchase.

Yellow diamonds pair beautifully with a variety of metals. 18K yellow gold is the most popular choice as it enhances and complements the warm tones of the stone. Platinum (PT950) and white gold create a striking contrast that allows the colour to stand out even more vividly. Rose gold is also a romantic option. Our specialists can help you select the ideal setting to bring out the best in your chosen stone.

Absolutely. We offer a fully bespoke service where you can select your preferred loose yellow diamond and work with our team to design the perfect setting — choosing everything from the metal type (PT950, 18K yellow gold, rose gold, etc.) to the setting style. Browse our loose yellow diamond collection to get started, or contact us to arrange a private consultation.

Yes. We welcome private viewings at our Tokyo showroom, where one of our specialists will walk you through each stone in person. Appointments are required and can be arranged easily through our contact form. Seeing a yellow diamond in natural light is an experience unlike any other — we highly recommend it.

Yes. Japan Diamond offers a money-back guarantee on our pieces. Please visit our Money-Back Guarantee page for full details and terms. We want every customer to feel completely confident and satisfied with their purchase.