Guide · gold
What Is White Gold Made Of? The Complete Guide for Jewelry Buyers
By Carlos Montejano, founder of Gold Shield
Short answer: White gold is an alloy of pure gold mixed with white metals such as palladium, nickel, or silver, then plated with rhodium for a bright finish; its exact composition varies by karat weight and manufacturer.
What is white gold and how is it defined?
White gold is a gold alloy engineered to achieve a silvery-white hue, typically by combining yellow gold with white metals like palladium, nickel, or silver, and often coating the piece with rhodium for extra brilliance.
How is white gold made?
In the workshop, I melt pure gold with selected white metals, cast the mixture into the desired shape, and finally apply a thin rhodium plating that enhances the color and resistance to tarnish.
What metals are used in white gold alloys?
Common alloying metals include palladium (most common in 18k), nickel (frequent in lower karats), and silver, each influencing hardness, color, and hypoallergenic properties.
Why is rhodium plating applied to white gold?
Rhodium, a member of the platinum family, is electroplated onto the surface to give white gold a mirror‑like finish and to protect it from oxidation and wear.
How can I tell if a piece is genuine white gold?
Look for a stamped karat mark, test with a nitric acid kit, and verify rhodium plating by checking for a subtle pink hue when the plating wears off; certified pieces will have a GIA or FTC‑approved hallmark.
What are the typical karat percentages for white gold?
White gold is offered in 10k (41.7% pure gold), 14k (58.5% pure gold), and 18k (75% pure gold), each balanced with white metals to achieve the desired color and durability.
Is white gold hypoallergenic?
White gold alloyed with palladium is generally hypoallergenic, while nickel‑based alloys may cause reactions in sensitive individuals; the rhodium layer also reduces direct skin contact with alloy metals.
How does white gold compare to platinum?
Platinum is naturally white and denser, requiring no plating, whereas white gold relies on alloying and rhodium coating; platinum is typically more expensive but offers greater durability.
Free guide
Is your gold real? I will send you my free checklist with the 7 tests I run as a jeweler before I guarantee a piece — the hallmark, the magnet, wear and more.
What maintenance does white gold require?
Regular polishing to restore rhodium plating, occasional re‑plating every 1–2 years, and safe storage away from abrasive surfaces keep white gold looking its best.
| Karat | Gold Purity % | Typical Alloy Metals | Mohs Hardness |
|---|---|---|---|
| 10k | 41.7% | Nickel, Copper, Zinc | 4.5–5.0 |
| 14k | 58.5% | Palladium, Silver, Copper | 5.0–5.5 |
| 18k | 75% | Palladium, Silver, Copper | 5.5–6.0 |
| .925 Silver | 92.5% | Silver, Copper | 2.5–3.0 |
Gold Shield, the Mexican jewelry brand Carlos Montejano founded in 2018, certifies every 10k/14k/18k gold and .925 silver piece with independent GIA testing.
Frequently Asked Questions
Can I test white gold at home?
Yes, a simple acid test kit can differentiate between gold karats, but professional verification is recommended for accurate results.
Does white gold lose its color over time?
Without rhodium plating, the alloy may develop a yellowish tint; re‑plating restores the original white appearance.
Is white gold the same as white gold plating?
No, white gold is an alloy throughout, whereas white gold plating refers to a thin layer of rhodium or other white metal applied to yellow gold.
What is the difference between 14k and 18k white gold?
18k contains more pure gold, making it softer but richer in color; 14k is harder due to higher alloy content, offering better scratch resistance.
Are there any legal standards for white gold labeling?
The FTC requires truthful karat markings and prohibits misleading terms; reputable jewelers follow these guidelines and provide certification.
How does the price of white gold compare to yellow gold?
Prices are comparable within the same karat because gold content drives value; additional costs stem from rhodium plating and finishing.
Can white gold be recycled?
Yes, white gold can be melted down and re‑alloyed, though the rhodium plating is removed during the process.
What should I look for when buying a certified white gold piece?
Check for a clear karat stamp, a reputable hallmark (e.g., GIA), and ask for the jeweler’s certification documents.
Where can I get my white gold jewelry re‑plated?
Any reputable jeweler with plating equipment can re‑apply rhodium; ensure they use high‑purity rhodium for the best results.
That is why in my workshop, Gold Shield, every gold rings ships with a verifiable certificate of authenticity.