Certified natural diamonds in Japan: read the report
For a GIA-graded loose diamond, compare the report number, measurements, color, clarity and disclosures with the proposed stone. If you require a GIA or CGL report, tell the team before selection. The laboratory, report type and availability are checked for each candidate; a grading report is not a financial appraisal.
Fancy shape diamond jewelry and unusual cuts
Explore preferences for radiant, cushion, Asscher and pear shapes, among other distinctive diamond cuts. For exotic shape diamonds in Tokyo, consider face-up dimensions, proportion and the intended setting. A description such as “cut-cornered rectangular mixed cut diamond” should be checked against the individual grading report rather than treated as an interchangeable shape name.
High-clarity VVS and VS natural diamonds
VVS and VS clarity preferences are considered alongside color, cut, carat weight and the stone’s appearance. Compare the location and visibility of features as well as the grade. The right balance depends on the jewelry design and the qualities that matter to you.
Loose diamond wholesale in Okachimachi
For a wholesale inquiry in Tokyo, send your business type, diamond specifications, quantity, report requirements and intended delivery date. Candidate stones, quotations and trade terms are confirmed for the individual request. Visits to our Okachimachi diamond atelier are by appointment.
Large diamonds and matched pairs
For a large natural diamond, specify weight, millimeter dimensions, shape, color, clarity and budget. Even at the same carat weight, proportions can change the face-up appearance considerably.
For matched pairs such as earrings, dimensions, color, shape and visual balance matter alongside weight. Matching stones can be sourced through the group network.
Information to prepare before enquiring
- Natural white or fancy color diamond
- Preferred shape and size
- Budget and currency
- Loose stone or finished jewelry
- Preferred grading report
- Single stone or matched pair
- Required timing and Tokyo visit dates
- Preferred consultation language
Explore the group inventory on the online search tool (search.middiamonds.com). When enquiring, include a reference or report number so we can guide you more precisely. Availability and Tokyo viewing arrangements require confirmation during your consultation.
Email tokyo@middiamonds.com