| Diamond Carat | The weight of the diamond, measured in carats. | Larger carat weights generally increase value, but the quality of the diamond is equally important. |
| Diamond Cut | The quality of the diamond’s cut, affecting its brilliance and sparkle. | Ideal, Excellent, Very Good, Good, Fair, Poor. A higher cut grade enhances value significantly. |
| Diamond Color | The color grade of the diamond, from D (colorless) to Z (light yellow or brown). | D-F (colorless) are the most valuable, followed by near-colorless (G-J). Lower grades decrease value. |
| Diamond Clarity | The presence of internal or external flaws, graded from Flawless (FL) to Included (I). | Flawless and Internally Flawless (IF) diamonds are the most valuable, followed by Very Slightly Included (VS) grades. |
| Platinum Purity | The purity of the platinum, usually measured in parts per thousand (e.g., 950, meaning 95% pure). | Higher purity levels (950 or 900) increase value. |
| Platinum Weight | The weight of the platinum setting, typically measured in grams. | Heavier settings use more platinum, increasing the ring’s intrinsic value. |
| Design and Craftsmanship | The complexity and quality of the ring’s design and craftsmanship. | Intricate designs and high craftsmanship from renowned jewelers add significant value. |
| Brand | The reputation of the brand or designer of the ring. | High-end brands like Tiffany & Co., Cartier, and Harry Winston command higher prices. |
| Provenance | The ring’s history, including previous ownership and origin. | Rings with notable provenance or from specific collections can be more valuable. |
| Market Demand | Current market trends and consumer demand for platinum and diamonds. | Market conditions can affect the value, with higher demand increasing prices. |
| Certification | Certification from reputable gemological laboratories like GIA, AGS, or IGI. | Certified diamonds and platinum from reputable labs are more trusted and valuable. |