Price Trends in New Zealand
Track which diamond categories are rising or falling in price across the market. Pricing shown in NZD.
Last updated 30 July 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 | 164 | $7,392/ct | +41.0% | +1.9% |
| Natural Princess 2.00-2.49 J-K I | 107 | $5,069/ct | +11.3% | -4.5% |
| Lab-Grown Round 0.50-0.74 N+ I | 287 | $1,064/ct | +11.2% | +282.7% |
| Natural Pear 1.00-1.24 L-M I | 109 | $2,484/ct | +10.9% | -23.8% |
| Lab-Grown Round 1.00-1.24 H-I I | 1,132 | $3,861/ct | +9.1% | +3.5% |
| Natural Pear 0.20-0.29 N+ I | 249 | $25,388/ct | +8.9% | -44.4% |
| Natural Pear 0.75-0.99 H-I I | 226 | $3,490/ct | +8.5% | +0.4% |
| Lab-Grown Round 0.30-0.49 H-I I | 1,026 | $1,440/ct | +8.2% | -8.4% |
| Lab-Grown Round 0.30-0.49 F-G I | 1,167 | $1,576/ct | +7.8% | -13.2% |
| Natural Pear 0.75-0.99 F-G I | 272 | $2,886/ct | +7.7% | +2.6% |
| Natural Round 2.00-2.49 N+ I | 313 | $4,059/ct | +7.6% | +334.7% |
| Natural Marquise 1.00-1.24 J-K I | 129 | $3,068/ct | +7.2% | -9.2% |
| Natural Heart 0.50-0.74 F-G I | 125 | $2,345/ct | +7.0% | -2.3% |
| Natural Cushion 1.50-1.99 F-G I | 114 | $6,334/ct | +6.8% | -1.7% |
| Lab-Grown Round 2.00-2.49 D-E I | 102 | $11,785/ct | +6.5% | -13.6% |
Falling This Week
| Category | Listings | Avg. Price | 7-Day Change | Supply Change |
|---|---|---|---|---|
| Lab-Grown Round 1.00-1.24 N+ I | 113 | $1,016/ct | -49.4% | +92.9% |
| Natural Pear 0.30-0.49 N+ I | 449 | $3,261/ct | -40.5% | -8.3% |
| Natural Oval 0.30-0.49 N+ I | 679 | $1,776/ct | -38.9% | +34.4% |
| Natural Cushion 0.30-0.49 N+ I | 323 | $12,798/ct | -37.4% | -28.9% |
| Natural Round 0.30-0.49 N+ I | 1,274 | $929/ct | -22.7% | +2398.0% |
| Natural Cushion 0.20-0.29 N+ I | 214 | $30,069/ct | -17.8% | -37.5% |
| Lab-Grown Round 0.75-0.99 N+ I | 175 | $980/ct | -14.1% | +220.8% |
| Natural Pear 2.00-2.49 F-G I | 226 | $5,638/ct | -13.5% | +4.6% |
| Natural Heart 1.50-1.99 F-G I | 138 | $5,146/ct | -12.0% | -26.2% |
| Natural Marquise 1.50-1.99 D-E I | 102 | $9,592/ct | -10.9% | -16.4% |
| Natural Radiant 1.50-1.99 H-I I | 100 | $4,745/ct | -10.3% | -20.0% |
| Natural Heart 1.50-1.99 H-I I | 151 | $4,552/ct | -9.4% | -32.3% |
| Natural Marquise 1.50-1.99 H-I I | 179 | $6,171/ct | -8.7% | -6.3% |
| Natural Round 3.00-3.99 H-I I | 521 | $10,571/ct | -7.1% | -5.4% |
| Natural Heart 1.00-1.24 D-E I | 125 | $3,897/ct | -6.4% | -8.8% |
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