Platinum Purity Guide: Understanding Pt950, Hallmarking & Pricing
Understand Platinum purity levels and the Pt950 mark. Learn why Platinum is different from White Gold and how to check for authentic PGI hallmarking.
Platinum Purity Scale & Standards
Platinum is naturally white and much denser than gold. In India, the standard for platinum jewelry is Pt950, meaning it is 95% pure platinum.
| Type | Fineness | Platinum Content | Best Used For |
|---|---|---|---|
| Pure Platinum | 999 | 99.9% | Industrial use and Investment bars. |
| Jewelry Grade | 950 | 95.0% | The global standard for rings and chains (Pt950). |
| Budget Grade | 900 | 90.0% | Used in some markets for smaller accessories. |
| White Gold | Variable | N/A | Not Platinum. It is Gold mixed with White alloys. |
Platinum vs. White Gold: What's the Difference?
They look similar, but their composition and value are very different.
- Purity & Color: Platinum is naturally white and stays white forever. White Gold is an alloy of yellow gold that is plated with Rhodium, which eventually wears off and requires re-plating.
- Density & Weight: Platinum is 40% heavier than 14K gold. A ring made of Platinum will feel significantly more substantial and 'premium' on the finger compared to a gold ring of the same size.
- Hypoallergenic Properties: Because Platinum jewelry is 95% pure, it is hypoallergenic. This makes it the ideal choice for people with sensitive skin who might react to the nickel used in gold alloys.
How to Verify Platinum Authenticity
In India, look for certification from the Platinum Guild International (PGI) and the BIS.
Check for these three markings:
- Pt950 Mark: The purity mark indicating 95% pure platinum.
- PGI Logo: The mark of quality from the Platinum Guild International.
- UID Number: A unique identification number provided by the jeweler or lab.
How Platinum is Priced
Platinum pricing is unique because it is harder to work with than gold:
- Higher Making Charges: Platinum has a very high melting point. Crafting it requires specialized tools and expertise, leading to higher labor costs.
- Density Cost: Since Platinum is denser, the same ring design will require more grams of metal in Platinum than in Gold, increasing the total price.
- 3% GST: Like Gold and Silver, a flat 3% GST is applied to Platinum purchases in India.
How to Clean and Care for Platinum Jewelry
Platinum is the most durable precious metal, but basic care keeps it looking its best. The great advantage over white gold: platinum never needs re-plating.
- Routine Cleaning: Soak your platinum jewelry in warm water with a few drops of mild dish soap for 15–20 minutes. Gently scrub with a soft-bristle toothbrush, rinse under clean warm water, and pat dry with a lint-free cloth. This monthly routine removes skin oils and product buildup that dull the surface.
- Understanding Patina vs. Polish: Over years of wear, platinum naturally develops a soft patina — a slightly satin, matte sheen from micro-scratches. Many wearers love this look. If you prefer the original mirror finish, a jeweler can polish it back to new in minutes at minimal cost. White gold, by contrast, requires expensive rhodium re-plating every 12–24 months to maintain its white color.
- Safe Storage to Prevent Scratches: Store platinum pieces separately from other jewelry, particularly diamond-set pieces. Even though platinum is extremely hard, diamonds (the hardest natural substance) can scratch other gemstones in your collection. Use individual soft pouches or a divided jewelry box to prevent contact damage.
Today's Platinum Rate in Top Cities
Now that you understand Platinum purity, check the live rate in your city before you buy.
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Frequently Asked Questions about Platinum
Why is Platinum more expensive than Gold jewelry?
Even if the raw price per gram is lower, Platinum jewelry is 95% pure (vs 75% in 18K gold) and much heavier (denser). Higher purity and weight make the final piece more expensive.
Does Platinum scratch?
Yes, all precious metals scratch. However, when Platinum scratches, the metal is simply displaced, not lost. This develops a 'patina' finish that many people find desirable over time.
Can I wear my Platinum ring every day?
Absolutely. Platinum is the most durable precious metal and is highly resistant to wear and tear, making it the best choice for engagement and wedding rings.
Does Platinum hold its value or increase in price over time?
Platinum's price is driven by industrial demand — particularly automotive catalytic converters and electronics — alongside jewelry demand. This makes it more volatile than gold. For investment, gold tends to be more liquid in India. For jewelry, platinum's extreme durability means minimal physical loss over decades of wear, preserving the metal value.
What is the resale value of Platinum jewelry in India?
Resale value is based on Pt950 purity (95%) and the current market rate. Formula: Resale ≈ Current Platinum Rate × 0.95 × Weight in grams. Note that the Indian platinum resale market is smaller than for gold — approach established jewelers or certified refiners for the best offer. Avoid unregistered buyers for platinum.