三浦査定士総合査定士
査定歴20年以上 ／ AACD協会基準判定士
ブランド品ジュエリー貴金属
18K Gold Buyback Price Today
¥16,363/g+70円 (+0.43%)
Announced Sep 2 9:30 JST・Purity 75.0%Market reference price (based on Tanaka Kikinzoku recycle price, tax incl.)
K18 Price History
07/02/2026 〜 09/03/2026+888円/g（+5.7%）
* K18 recycle price history (tax incl., JPY/g).
K18 Weight Calculator
g
Estimated value—
Calculated at ¥16,363/g (market reference, tax incl.). Actual purchase price depends on item condition.
Today's Prices by Grade
| Grade | Purity | Ref. price/g | Change |
|---|---|---|---|
| K24 特定品（インゴット等） | 99.99% | ¥22,907 | +97 |
| K24（純金） | 99.9% | ¥22,418 | +95 |
| K22 | 91.7% | ¥20,469 | +87 |
| K20 | 83.5% | ¥18,339 | +79 |
| K18 | 75.0% | ¥16,363 | +70 |
| K15 | 62.5% | ¥12,694 | +56 |
| K14 | 58.5% | ¥11,813 | +52 |
| K12 | 50.0% | ¥9,942 | +45 |
| K10 | 41.7% | ¥8,114 | +37 |
| K9 | 37.5% | ¥7,190 | +34 |
| Pt 特定品（インゴット等） | 99.95% | ¥8,248 | +85 |
| Pt1000 | 99.9% | ¥8,054 | +83 |
| Pt950 | 95.0% | ¥7,593 | +78 |
| Pt900 | 90.0% | ¥7,133 | +74 |
| Pt850 | 85.0% | ¥6,590 | +69 |
| Pt800 | 80.0% | ¥6,135 | +66 |
| Pt750 | 75.0% | ¥5,679 | +61 |
| SV1000（純銀） | 99.9% | ¥210 | +0 |
* Market reference prices based on Tanaka Kikinzoku recycle prices (tax incl., JPY/g). Not our store purchase prices.
K18 Reference Price by Weight
See the grade table above for rates, this table for per-weight guides, and the simulator to calculate your own grams.
| Weight | Reference Price（K18） |
|---|---|
| 1g | ¥16,363 |
| 5g | ¥81,815 |
| 10g | ¥163,630 |
| 20g | ¥327,260 |
| 30g | ¥490,890 |
| 50g | ¥818,150 |
| 100g | ¥1,636,300 |
* Market reference price (based on Tanaka Kikinzoku recycle price, tax incl.) × weight. Actual buyback price varies by condition, accessories and market.
K18 Buyback Records
Actual bullion we purchased (with weight and month).
K18 602.6g¥11,248,899
2026年2月
K18 530.1g¥9,079,168
2026年8月
K18 634.5g¥7,416,151
2025年8月
K18 582.4g¥6,845,318
2025年8月
K18 375.6g¥6,322,372
2026年8月
K18 360.3g¥6,064,831
2026年8月
K18 338.8g¥5,802,720
2026年8月
K18 471.3g¥5,489,788
2025年8月
* Actual buyback records. Price varies by market, weight and condition.
Supervising Appraiser
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FAQ
- How is the K18 buyback price calculated?
- Based on the per-gram reference price (today ¥16,363/g) multiplied by weight. Actual purchase prices depend on item condition, design, and accessories.
- When are prices updated?
- Prices announced at 9:30 JST are reflected every morning (except Sundays and year-end holidays).