Price Trends in Australia
Track which diamond categories are rising or falling in price across the market. Pricing shown in AUD.
Last updated 16 September 2026 · Weekly movers across more than one hundred retailers
Showing categories with 100+ active listings. Prices are median per carat. Click any category to browse those diamonds in the Explorer.
This Week's Movers
Top rising and falling categories by 7-day median price change. Click any row to browse in the Explorer.
Market Quadrants
Each dot is a category. Size reflects active listings. The four quadrants tell you where the market is hot, cooling, accumulating, or getting liquidated.
Demand rallyQuiet accumulationCooling offLiquidation
1 extreme-movement categories sit outside the axis range and aren't plotted.
Rising This Week
| Category | Listings | Avg. Price | 7-Day Change | Supply Change |
|---|---|---|---|---|
| Natural Radiant 0.30-0.49 N+ I | 254 | $4,940/ct | +41.0% | +1.9% |
| Natural Round 0.50-0.74 N+ I | 799 | $1,319/ct | +17.7% | +600.9% |
| Natural Round 0.30-0.49 L-M I | 648 | $1,284/ct | +13.7% | -3.9% |
| Lab-Grown Round 0.30-0.49 J-K I | 100 | $1,387/ct | +9.8% | -24.8% |
| Natural Pear 0.20-0.29 N+ I | 344 | $19,469/ct | +8.9% | -44.4% |
| Natural Emerald 0.75-0.99 H-I I | 101 | $2,119/ct | +7.2% | +1.0% |
| Lab-Grown Round 0.75-0.99 J-K I | 228 | $2,654/ct | +6.6% | -24.0% |
| Natural Round 0.75-0.99 L-M I | 416 | $1,511/ct | +6.3% | +7.8% |
| Natural Round 0.50-0.74 L-M I | 997 | $1,297/ct | +6.0% | +4.5% |
Falling This Week
| Category | Listings | Avg. Price | 7-Day Change | Supply Change |
|---|---|---|---|---|
| Natural Pear 0.30-0.49 N+ I | 706 | $2,949/ct | -40.5% | -8.3% |
| Natural Oval 0.30-0.49 N+ I | 908 | $1,523/ct | -38.9% | +34.4% |
| Natural Cushion 0.30-0.49 N+ I | 360 | $11,203/ct | -37.4% | -28.9% |
| Natural Oval 2.50-2.99 D-E I | 136 | $10,529/ct | -36.9% | -59.2% |
| Natural Oval 3.00-3.99 F-G I | 105 | $13,099/ct | -34.8% | -61.0% |
| Lab-Grown Round 0.30-0.49 D-E I | 496 | $856/ct | -33.8% | +25.6% |
| Natural Round 5.00-9.99 H-I I | 111 | $7,299/ct | -33.8% | -54.9% |
| Natural Heart 1.50-1.99 D-E I | 134 | $5,143/ct | -33.2% | -59.1% |
| Natural Marquise 1.50-1.99 D-E I | 252 | $9,201/ct | -32.7% | -39.0% |
| Natural Marquise 1.50-1.99 J-K I | 180 | $6,677/ct | -31.0% | -40.6% |
| Natural Marquise 2.00-2.49 H-I I | 156 | $8,250/ct | -27.3% | -45.8% |
| Natural Round 2.50-2.99 D-E I | 314 | $12,875/ct | -27.0% | -35.0% |
| Natural Princess 2.00-2.49 D-E I | 113 | $7,263/ct | -25.6% | -18.7% |
| Natural Oval 2.50-2.99 F-G I | 161 | $11,013/ct | -24.8% | -46.9% |
| Natural Round 4.00-4.99 F-G I | 141 | $10,634/ct | -23.8% | -25.0% |
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