Diamond
Hojudo also wholesales gemstones, so we always have over 300 diamonds in stock, including rare, high-quality diamonds such as IF (internally flawless) and FL (flawless) before they hit the market, diamonds with GIA certification, large diamonds over 1 carat, colored diamonds, and fancy cut diamonds such as marquise, cushion cut, and heart shape diamonds.
Diamond quality standard “4C”
The "4Cs" were established by the Gemological Institute of America (GIA) and are the international standards for evaluating the quality of cut diamonds for jewelry. Diamonds are evaluated based on four criteria: color, clarity, weight (carat), and polish (cut), and are abbreviated as "4Cs" from the initials of each. The 4Cs are listed on a diamond's "certificate."
Custom made is also possible
You can choose your own certified diamond and choose from the designs listed (products marked "Customizable/Remodelable Design"), or you can create an original design from scratch.









A classic solitaire ring crafted in premium Platinum 950, centered with a stunning 0.30-carat diamond in a timeless, enduring design.
The center diamond is strictly selected for its exceptional quality, boasting the highest completely colorless "D" grade, superior clarity "VVS2," and the ultimate cut grade "3EX (Triple Excellent)." Accompanied by a grading report from the GIA—the world’s foremost authority in gemology—its supreme quality is assured. The classic six-prong setting directly highlights the diamond’s natural, dazzling brilliance. This piece is destined to be cherished for a lifetime, whether as a luxurious ring for everyday elegance or as an engagement ring symbolizing a special vow.
Product Details
Stones: Center Diamond (D / VVS2 / 3EX) 0.30ct
Material: Platinum 950
Dimensions:
Band Width: approx. 1.5 mm – 5.6 mm
Thickness: approx. 1.4 mm – 4.5 mm
Weight: approx. 4.3 g
Certificate: GIA Diamond Grading Report Included
Delivery: Approx. 1–7 business days
Note: Even if marked as Sold Out, this item is available for backorder/pre-order. Please contact us regarding lead time and pricing.