Price Trends in Australia
Track which diamond categories are rising or falling in price across the market. Pricing shown in AUD.
Last updated 1 August 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 | 167 | $6,881/ct | +41.0% | +1.9% |
| Natural Marquise 0.50-0.74 J-K I | 236 | $1,989/ct | +13.3% | +73.5% |
| Lab-Grown Round 0.50-0.74 N+ I | 288 | $982/ct | +11.3% | +284.0% |
| Natural Pear 1.00-1.24 L-M I | 110 | $2,287/ct | +10.7% | -23.1% |
| Lab-Grown Round 2.00-2.49 D-E I | 102 | $10,879/ct | +10.4% | -11.3% |
| Lab-Grown Round 1.00-1.24 H-I I | 1,132 | $3,565/ct | +9.1% | +3.6% |
| Natural Pear 0.20-0.29 N+ I | 274 | $23,239/ct | +8.9% | -44.4% |
| Natural Round 0.50-0.74 N+ I | 645 | $1,455/ct | +8.7% | +821.4% |
| Lab-Grown Round 0.30-0.49 H-I I | 1,026 | $1,329/ct | +8.2% | -8.4% |
| Natural Round 1.00-1.24 N+ I | 909 | $2,203/ct | +7.5% | +431.6% |
| Lab-Grown Round 0.30-0.49 F-G I | 1,166 | $1,455/ct | +7.3% | -13.3% |
| Natural Marquise 1.00-1.24 J-K I | 128 | $2,834/ct | +7.1% | -9.2% |
| Natural Cushion 1.50-1.99 F-G I | 114 | $5,847/ct | +6.8% | -1.7% |
| Natural Radiant 0.50-0.74 F-G I | 328 | $2,169/ct | +6.5% | +127.8% |
| Natural Round 2.00-2.49 N+ I | 316 | $3,700/ct | +6.3% | +338.9% |
Falling This Week
| Category | Listings | Avg. Price | 7-Day Change | Supply Change |
|---|---|---|---|---|
| Lab-Grown Round 1.00-1.24 N+ I | 113 | $938/ct | -49.4% | +92.9% |
| Natural Pear 0.30-0.49 N+ I | 468 | $3,335/ct | -40.5% | -8.3% |
| Natural Oval 0.30-0.49 N+ I | 692 | $1,662/ct | -38.9% | +34.4% |
| Natural Cushion 0.30-0.49 N+ I | 323 | $11,814/ct | -37.4% | -28.9% |
| Natural Cushion 0.50-0.74 H-I I | 293 | $1,382/ct | -32.0% | +94.0% |
| Natural Cushion 0.50-0.74 F-G I | 332 | $1,621/ct | -30.8% | +84.4% |
| Natural Cushion 0.75-0.99 H-I I | 329 | $1,685/ct | -27.4% | +130.1% |
| Natural Cushion 0.50-0.74 J-K I | 134 | $1,267/ct | -27.2% | +57.6% |
| Natural Cushion 0.50-0.74 D-E I | 320 | $1,967/ct | -24.8% | +96.3% |
| Natural Heart 0.30-0.49 F-G I | 174 | $1,846/ct | -24.5% | -72.8% |
| Natural Princess 0.50-0.74 J-K I | 182 | $1,566/ct | -23.1% | +51.7% |
| Natural Cushion 0.75-0.99 J-K I | 200 | $1,559/ct | -22.1% | +124.7% |
| Natural Round 0.30-0.49 N+ I | 1,293 | $866/ct | -21.9% | +2435.3% |
| Natural Cushion 0.75-0.99 D-E I | 196 | $2,596/ct | -20.7% | +58.1% |
| Natural Heart 0.75-0.99 D-E I | 112 | $2,512/ct | -20.0% | +33.3% |
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