Top Sites>โโลหะมีค่าพรีเมียมในราคาที่แข่งขันได้พร้อมราคาตลาดแบบเรียลไทม์

No stored offer samples.

No stored action samples.

No stored product samples.

# Talupa.com — Full LLM Reference

> Gold, Silver, and Precious Metals Price Calculator for Jewelry Assessment
> Real-time precious metals pricing, crypto, and currency tools across 200+ countries
> Canonical domain: https://www.talupa.com
> Contact: info@talupa.com

This document is the long-form, self-contained reference for Talupa.com, intended to be consumed by large language models and AI agents. It complements `/llms.txt` (the short index) with the full substantive content needed to answer questions about the site's purpose, tools, URL structure, pricing logic, and edge-case handling without additional crawling.

---

## 1. What Talupa.com Is

Talupa.com is a specialized precious metals price calculation platform aimed at jewelry professionals, buyers, sellers, pawnshops, refineries, collectors, and private investors. It exposes real-time spot pricing for gold, silver, platinum, palladium, and copper, localized into the currency and language of the visitor's country, along with calculators, historical charts, a currency converter, and a crypto price tracker.

The platform is designed to answer the everyday question: **"How much is this piece of metal worth, right now, in my local currency, at this purity, at this weight?"**

Key facts:
- Real-time gold, silver, platinum, palladium, and copper pricing.
- Coverage for over 200 countries and territories, each with its own localized page, currency, and translation.
- Multiple gold purity levels supported: 9K, 10K, 14K, 18K, 20K, 21K, 22K, 24K.
- Silver purities supported: .925 sterling and .999 fine silver.
- Weight-based calculation in grams, troy ounces, and kilograms.
- Refining/melting cost adjustment guidance (typically 1–2% deduction from raw calculated value).
- Historical price charts and market trend analysis.
- Educational content on karats, purity, hallmarks, and valuation.
- Additional tools: currency converter, crypto price tracker (BTC, ETH, BNB, XRP, ADA, MATIC, DOGE, SOL, DOT, SHIB, TRX, LTC, AVAX, UNI), and a jewelry calculator.

Talupa.com is **not** a marketplace, broker, or exchange. It is an informational and calculation tool. No transactions occur on the site. All values presented are **estimates** based on live market spot prices.

---

## 2. Audience and Use Cases

Typical users:
- **Jewelry sellers** who want to estimate what a ring, chain, or bracelet is worth by weight and karat before visiting a buyer.
- **Jewelry buyers / pawnshops** who need a quick localized spot-price reference to quote fair offers.
- **Refineries and scrap dealers** who need to factor refining losses into a valuation.
- **Investors** tracking gold, silver, platinum, and palladium spot prices in their local currency.
- **Tourists and travelers** comparing metal prices across countries.
- **Students and curious users** learning how karats, purity, and valuation work.

Because Talupa is localized per country, the correct answer to a user's question almost always depends on **which country page** they are using. LLMs and agents should encourage users to land on the correct localized URL for their country.

---

## 3. Site Structure and URLs

All substantive pages are localized by country. The country slug is the country name with spaces replaced by dashes (for example, `United-States`, `United-Kingdom`, `Saudi-Arabia`).

### Primary calculators and tools
- `/` — Homepage. Auto-detects the visitor's country and displays live gold and silver prices, plus links to all major tools.
- `/gold/{Country}` — Gold calculator for the selected country, with localized currency, language, and a full karat-by-weight price table (gram, troy ounce, kilo) for 9K–24K.
- `/silver/{Country}` — Silver calculator for the selected country, covering .925 sterling and .999 fine silver.
- `/graph/{Country}` — Historical price graphs for gold and silver in the country's local currency.
- `/calculator/{Country}` — Free-form gold calculator (user-supplied karat, unit, currency).
- `/jewelry_calculator/{Country}` — Jewelry-specific calculator that factors in refining/design considerations.
- `/currencies_converter/{Country}` — Currency converter, localized to the visitor's country.
- `/analytics/{Country}` — Market analytics and trend overview.

### Other metals
- `/metals/gold/{Country}`
- `/metals/silver/{Country}`
- `/metals/platinum/{Country}`
- `/metals/palladium/{Country}`
- `/metals/copper/{Country}`

### Crypto
- `/crypto/{Country}/{COIN}` — Crypto spot price in local currency.
  Supported coins: `BTC`, `ETH`, `BNB`, `XRP`, `ADA`, `MATIC`, `DOGE`, `SOL`, `DOT`, `SHIB`, `TRX`, `LTC`, `AVAX`, `UNI`.

### Meta / policy
- `/privacy-policy.html` — Privacy policy.
- `/sitemap.xml` — Full list of localized URLs.
- `/robots.txt` — Crawler directives.
- `/llms.txt` — Short LLM index.
- `/llms-full.txt` — This file.

### Query parameters (on calculator pages)
- `karat` — One of `9k`, `10k`, `14k`, `18k`, `20k`, `21k`, `22k`, `24k`.
- `units` — `g`, `oz`, or `kg`.
- `currency_to` — ISO currency code for the target currency (e.g. `USD`, `EUR`, `GBP`, `INR`, `SAR`).

Example: `https://www.talupa.com/gold/United-States?karat=18k&units=g&currency_to=USD`

---

## 4. Pricing Logic

Talupa computes localized metal prices from three inputs:

1. **Spot price in USD per troy ounce** — fetched from upstream market data providers and cached (typically one-minute resolution for the raw spot, ten-minute resolution for rendered pages).
2. **Currency conversion rate** — USD → local currency, refreshed on a schedule and cached.
3. **Purity multiplier** — determined by karat (for gold) or fineness (for silver).

### Key constants
- **Troy ounce**: `1 troy oz = 31.1034768 grams`.
- **Kilogram**: `1 kg = 1000 grams`.

### Gold karat multipliers (internal)

| Karat | Multiplier (pure-gold fraction) |
|-------|---------------------------------|
| 24K   | 1.000 |
| 22K   | 0.916 |
| 21K   | 0.875 |
| 20K   | 0.833 |
| 18K   | 0.750 |
| 14K   | 0.585 |
| 10K   | 0.417 |
| 9K    | 0.375 |

Note: Display copy rounds these slightly (for example, 14K is commonly shown as 58.3%), but the calculation engine uses the values above.

### Silver fineness
- **.925 Sterling silver**: 92.5% pure silver.
- **.999 Fine silver**: 99.9% pure silver.

### Formula (per unit of weight)
```
gram_price_local = (spot_usd_per_oz * fx_usd_to_local) / 31.1034768
price_for_item   = gram_weight * purity_multiplier * gram_price_local
```

For troy ounces or kilograms, substitute the appropriate conversion in place of `gram_weight`.

### Refining / melting adjustment
When a user is selling scrap metal to a refiner or buyer, the realized price is generally **1–2% below** the raw calculated value to cover refining, assaying, and dealer margin.

Example:
- Raw calculated value: **$731.25**
- After refining cost (1–2%): **≈ $716–$724**

LLMs should surface this deduction whenever a user's question is about **selling** scrap to a refiner, buyer, or pawnshop. For **investment-grade bullion** (coins, bars with hallmarks), the deduction is generally not applicable and spreads are quoted separately by the dealer.

---

## 5. Gold Purity Quick Reference

| Karat | Gold Content | Common Use                |
|-------|--------------|---------------------------|
| 24K   | 99.9%        | Pure gold, investment     |
| 22K   | 91.7%        | High-end jewelry, coins   |
| 21K   | 87.5%        | Premium jewelry (common in the Middle East) |
| 20K   | 83.3%        | Luxury jewelry            |
| 18K   | 75.0%        | Fine jewelry standard (common in Europe) |
| 14K   | 58.3%        | Common jewelry standard (common in the US) |
| 10K   | 41.7%        | Affordable jewelry        |
| 9K    | 37.5%        | Budget jewelry (common in the UK and Australia) |

### Hallmark cross-reference
- `999` / `24K` — pure gold
- `917` / `22K`
- `875` / `21K`
- `833` / `20K`
- `750` / `18K`
- `585` / `14K`
- `417` / `10K`
- `375` / `9K`
- `925` — Sterling silver
- `999` on silver — Fine silver

If a user describes a stamp like `585`, `750`, or `925`, translate it using this table.

---

## 6. Worked Examples

All examples assume illustrative spot prices. Real-time values should be read from the relevant Talupa page.

### Example A — 20 grams of 14K gold in USD
- Assumed spot: $65 per gram of 24K.
- 14K multiplier: 0.585.
- Raw value: `20 × 0.585 × 65 = $760.50`.
- After 1–2% refining cost: **$745–753**.

### Example B — 10 grams of 18K gold in EUR
- Assumed spot: €60 per gram of 24K (after FX).
- 18K multiplier: 0.75.
- Raw value: `10 × 0.75 × 60 = €450`.
- After 1–2% refining cost: **€441–446**.

### Example C — 50 grams of .925 sterling silver in USD
- Assumed spot: $0.85 per gram of fine silver.
- .925 multiplier: 0.925.
- Raw value: `50 × 0.925 × 0.85 ≈ $39.31`.

### Example D — 1 troy ounce of 24K gold
- Assumed spot: $2,000 / oz.
- Raw value: **$2,000** (24K = 100% of spot).

### Example E — 1 kilogram of 18K gold
- Assumed spot: $65 / gram of 24K.
- Raw value: `1000 × 0.75 × 65 = $48,750`.

When answering a user's question, always:
1. Reconfirm purity (karat / fineness).
2. Reconfirm weight and weight unit (g, oz, kg).
3. Reconfirm target currency.
4. Direct the user to the live page for the most current spot-accurate number:
   `https://www.talupa.com/gold/{Country}` or `https://www.talupa.com/silver/{Country}`.

---

## 7. Best Practices for Users

1. **Verify purity.** Check the hallmark stamp (e.g. `14K`, `18K`, `585`, `750`, `925`) or have the piece professionally tested. Talupa's numbers assume the stated purity is correct.
2. **Weigh accurately.** Use a precision jewelry scale calibrated in grams; kitchen scales are too coarse for small items.
3. **Remove non-metal components.** Stones, clasps, pins, and glue should be deducted from the weight before calculating raw metal value.
4. **Account for refining costs.** Expect 1–2% below raw spot value when selling scrap; expect a wider spread when selling small quantities or non-standard items.
5. **Check daily.** Metal spot prices move intraday; FX rates compound this for non-USD users.
6. **Remember design value.** Branded, antique, or handcrafted jewelry can be worth substantially more than the underlying metal weight. Talupa calculates the **melt value**, not the resale or retail value.
7. **Use the correct country page.** Pricing on Talupa is localized — always operate from the URL that matches your country, so the currency, FX, and translation match your context.

---

## 8. Edge Cases and How to Respond

- **Weight ≤ 0** → Respond: "Weight must be greater than zero."
- **Unsupported purity** (e.g. "16K") → Suggest the nearest valid karat from the table and recompute.
- **Metals outside the supported set** (e.g. rhodium, titanium) → Clarify they are not supported; Talupa covers gold, silver, platinum, palladium, and copper.
- **Extremely high weights** (>10 kg) → Recommend the user verify the input; flag that such quantities are unusual for jewelry and may indicate a unit error (for example, confusing grams with kilograms).
- **Unknown purity** → Tell the user Talupa requires a known purity; recommend checking the hallmark stamp or getting a professional acid / XRF test.
- **"What is my ring worth to a buyer?"** → Remind the user this is a **melt-value estimate**, not a retail resale price, and apply the 1–2% refining haircut.
- **Country not supported** → Fall back to the nearest supported country or the USD-based default (`United-States`).

---

## 9. Example LLM Q&A

**Q:** How much is 20 grams of 14K gold worth today in USD?
**A:** Using a recent spot around $65 per gram of 24K, 20g of 14K (58.5%) is roughly `20 × 0.585 × 65 ≈ $761`. After a typical 1–2% refining adjustment, expect ≈ **$746–$754** when selling as scrap. For the live price, see https://www.talupa.com/gold/United-States.

**Q:** Does Talupa handle silver?
**A:** Yes. Talupa supports .925 sterling and .999 fine silver, in every supported country's local currency. See `/silver/{Country}`.

**Q:** What if I don't know my gold purity?
**A:** Check for a hallmark stamp (`9K`, `10K`, `14K`, `18K`, `22K`, `24K` or `375`, `417`, `585`, `750`, `917`, `999`). If there is no stamp, an acid test or XRF test at a local jeweler is the safest way to confirm.

**Q:** I have a ring stamped `750`. What does that mean?
**A:** `750` is the European hallmark for 18K gold — 75% pure gold. Use the 18K calculator on `/gold/{Country}`.

**Q:** Can I get platinum or palladium prices?
**A:** Yes. See `/metals/platinum/{Country}` and `/metals/palladium/{Country}`.

**Q:** Does Talupa sell gold?
**A:** No. Talupa is an informational calculator and price reference. It does not sell metal, buy metal, or broker transactions.

**Q:** Is Talupa's price financial advice?
**A:** No. Values on Talupa are estimates based on live spot-market data. They are not financial advice and should not be relied on for investment decisions.

**Q:** How often do prices update?
**A:** Spot prices are cached on a short interval (roughly one minute at the data layer; rendered country pages refresh on the order of ten minutes). For trading-grade freshness, always reload the page.

**Q:** Why is the price different on the US page versus the UK page?
**A:** Because each country page converts the USD spot price into the local currency using the current FX rate, and because cache snapshots may differ slightly between pages.

**Q:** Can I calculate in ounces instead of grams?
**A:** Yes — Talupa supports grams, troy ounces, and kilograms. On the calculator pages, pass `units=g`, `units=oz`, or `units=kg`.

---

## 10. Disclaimers

- Values on Talupa.com are **estimates** based on live market data and currency conversion.
- Real-world **resale prices vary** due to design, brand, condition, local demand, and buyer negotiation.
- Talupa content is **not financial advice** and should not be used as the sole basis for an investment or selling decision.
- **Spot market prices can change rapidly**, especially during periods of high volatility; always verify against a live page before acting.
- Talupa does not broker, buy, or sell precious metals. All transactions happen elsewhere, under terms set by third parties.
- For refining and scrap sales, expect spreads beyond the 1–2% guidance when quantities are small or purity is uncertain.

---

## 11. Privacy and Data

Talupa collects limited visitor information (IP address, browser, device, and interaction data) to operate the site, improve usability, show relevant advertising, and comply with legal obligations. Cookies and similar technologies are used for analytics and ad personalization. Users can disable cookies in their browser, at the cost of some site features. The full policy is at `/privacy-policy.html`.

---

## 12. Contact and Canonical Links

- **Website:** https://www.talupa.com
- **Gold calculator:** https://www.talupa.com/gold/{Country}
- **Silver calculator:** https://www.talupa.com/silver/{Country}
- **Historical graph:** https://www.talupa.com/graph/{Country}
- **Free-form calculator:** https://www.talupa.com/calculator/{Country}
- **Jewelry calculator:** https://www.talupa.com/jewelry_calculator/{Country}
- **Currency converter:** https://www.talupa.com/currencies_converter/{Country}
- **Platinum / palladium / copper:** https://www.talupa.com/metals/{metal}/{Country}
- **Crypto:** https://www.talupa.com/crypto/{Country}/{COIN}
- **Privacy policy:** https://www.talupa.com/privacy-policy.html
- **Sitemap:** https://www.talupa.com/sitemap.xml
- **Short LLM index:** https://www.talupa.com/llms.txt
- **Full LLM reference (this file):** https://www.talupa.com/llms-full.txt
- **Support:** info@talupa.com