Casting grain Metal color:
White Liquidus temperature:
1,832°F (1,000°C) Cast temperature:
1,886°F (1,030°C) Density:
12.61 Country of origin:
Please choose your quantity below:
(Measurements above are in inches)
The term "conflict diamonds" refers to the diamond rough used to fund violent criminal insurgencies in several African countries.
The Kimberley Accord is a compact that regulates the sale and transfer of diamond rough to prevent the human destruction that conflict
diamonds cause. Rio Grande has long asked our suppliers to provide documentation proving the safe origin of the diamonds we buy.
You can be assured every diamond you buy from Rio Grande is certified “conflict-free” by both our strict standards and the Kimberley Accord.
Our Rio Graduate Gemologists are ready to help you match stones or select a specific quality. Please let them know how they can help you.
This 14-karat nickel-white white gold grain is specially formulated to produce excellent casting results for white gold pieces using a variety of casting methods. Special additives prevent firescale and produce a whiteness comparable to rhodium. Enough deoxidant is added so you can mix 50% casting scrap with new grain and still produce good results. Casting metal, because it comes ready to melt and pour into your mold, is fast and efficient to use and, because it is professionally produced, you can count on consistent, repeatable quality and composition over time. This grain has achieved MJSA’s coveted Grade 1 rating.
Sold by the pennyweight (dwt.).
2017-2018 Gems and Findings & Display and Packaging Catalog p.14
please note: • Customers within the European Union: Please be aware that this item contains nickel and may not be in compliance with EU regulation EN1811:2011.
• Casting temperatures are approximate; adjust for your particular alloy and application.
• For more information regarding the use or composition of this material, please refer to the reference sheet provided below.
How To Determine Metal Weight for Wax Trees
Knowing how to determine the correct metal weight for each wax tree before you cast ensures that you melt the right amount of metal for your cast, making your casting process more cost-effective and more reliable.
First, weigh your wax models along with main and gate sprues. Then add an additional 10% to account for your button.
Multiply that total by the specific gravity of the metal you're casting (see table above for a general guideline).
Example: For a 5-gram wax model, add 0.5 (10% of 5g) to get a total wax weight of 5.5g. For a 14KY gold casting, multiply 5.5g x 13.07 s.g. The amount of 14KY gold needed for this tree is 71.89 grams.
Karating Made Easy
Create the karat value you want using the tables below. For a new alloy, begin with 24-karat (pure gold) and reduce to the karat value you need. If you have a lower-karat alloy already on hand, use the appropriate table to either raise or lower its karat value to meet your needs.
Desired Karat Value
Starting Karat Value
Desired Karat Value
Starting Karat Value
To calculate your karat weights, multiply the pennyweight of the gold you're working with by the factor (from the tables above) for the karat you want to create. See examples below.
To make 14K alloy from 8 dwt. of 24K: 8 × .714 = 5.71 dwt. of alloy.
To make 18K alloy from 15 dwt. of 14K: 15 × .667 = 10 dwt. of 24K.
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