Convert carats to troy ounces for jewelry valuation, gemstone grading, and precious metal trading. Accurate calculator with industry-standard conversion factors.
1 carat equals 0.00643014 troy ounce
Formula: oz t = ct × 0.00643015
The carat and troy ounce are critical measurement units in the precious metals and gemstone industries. With 1 troy ounce equaling approximately 31.1035 carats, understanding this conversion is essential for jewelers, gemologists, investors, and collectors worldwide. These units serve different purposes: carats measure gemstone weight and purity, while troy ounces quantify precious metal weight in trading and investment contexts.
Accurate conversion between carats and troy ounces directly impacts pricing in the jewelry and precious metals markets. A single carat difference in a diamond can represent thousands of dollars in value. Professionals must maintain precision to ensure fair pricing, accurate inventory management, and compliance with international trading standards. Errors in conversion can lead to significant financial losses or legal disputes in high-value transactions.
Jewelry manufacturers and retailers use carat measurements for gemstones and troy ounces for precious metal content. When crafting engagement rings or luxury pieces, jewelers must accurately calculate the total weight in both units for pricing, certification, and customer communication. Converting between these units ensures consistency across international markets where different measurement preferences exist.
Commodity traders and precious metal investors work primarily in troy ounces for gold, silver, and platinum pricing. However, when dealing with jewelry-grade metals that contain gemstones, conversion to carats becomes necessary. Investment portfolios mixing bullion (troy ounces) with gemstone-set pieces (carats) require accurate conversion for total asset valuation and portfolio rebalancing.
| carats | troy ounces |
|---|---|
| 10 ct | 0.064301 oz t |
| 50 ct | 0.321507 oz t |
| 100 ct | 0.643014 oz t |
| 500 ct | 3.21507 oz t |
| 1000 ct | 6.43014 oz t |
Formula: oz t = ct × conversion factor
The carat is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The troy ounce is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This carat to troy ounce converter uses high-precision conversion factors to ensure accurate results for professional and academic use.
Our calculator provides results with up to 10 decimal places for maximum accuracy.
Exactly 31.1035 carats equal one troy ounce. This precise conversion factor has been standardized internationally since 1913. To convert any weight in troy ounces to carats, multiply by 31.1035. For example, 2 troy ounces = 62.207 carats. This conversion applies uniformly regardless of the material type—whether measuring gold, silver, platinum, or gemstones.
Carats measure gemstone weight and are tied to gemstone grading systems where small weight differences dramatically affect value. Troy ounces developed for precious metals trading and remain the standard for commodity pricing in international markets. Using carats for metals would create confusion with gemstone pricing, while using troy ounces for gems would be impractical since a 1-carat diamond is a substantial stone, but 1 troy ounce of gold is relatively small. Each unit serves its industry's practical needs.
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