Price Trends in New Zealand
Track which diamond categories are rising or falling in price across the market. Pricing shown in NZD.
Last updated 10 June 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 Round 2.00-2.49 N+ I | 167 | $4,420/ct | +21.9% | +209.3% |
| Natural Princess 2.00-2.49 H-I I | 136 | $7,195/ct | +12.3% | -3.5% |
| Natural Heart 2.00-2.49 H-I I | 126 | $8,977/ct | +11.4% | +4.1% |
| Lab-Grown Round 0.50-0.74 N+ I | 395 | $1,027/ct | +10.7% | +393.8% |
| Lab-Grown Round 1.25-1.49 J-K I | 109 | $4,215/ct | +10.6% | +39.7% |
| Lab-Grown Round 1.50-1.99 J-K I | 441 | $4,354/ct | +8.9% | -2.9% |
| Natural Cushion 1.50-1.99 H-I I | 132 | $5,297/ct | +8.2% | +10.0% |
| Natural Pear 2.00-2.49 J-K I | 111 | $7,533/ct | +7.5% | -8.3% |
| Natural Cushion 2.00-2.49 H-I I | 128 | $8,054/ct | +7.0% | +7.6% |
| Lab-Grown Round 2.00-2.49 H-I I | 343 | $8,553/ct | +6.2% | -7.3% |
| Lab-Grown Round 2.00-2.49 D-E I | 130 | $11,036/ct | +6.2% | -19.3% |
| Lab-Grown Round 2.00-2.49 F-G I | 201 | $8,247/ct | +5.8% | -3.8% |
| Natural Cushion 1.00-1.24 H-I I | 242 | $3,178/ct | +5.6% | +9.0% |
| Natural Princess 0.50-0.74 H-I I | 156 | $2,412/ct | +5.5% | -4.3% |
| Lab-Grown Round 0.75-0.99 J-K I | 483 | $2,110/ct | +5.2% | +0.2% |
Falling This Week
| Category | Listings | Avg. Price | 7-Day Change | Supply Change |
|---|---|---|---|---|
| Natural Pear 0.30-0.49 N+ I | 135 | $2,856/ct | -40.5% | -8.3% |
| Natural Oval 0.30-0.49 N+ I | 509 | $1,551/ct | -38.9% | +34.4% |
| Natural Cushion 0.30-0.49 N+ I | 117 | $13,018/ct | -37.4% | -28.9% |
| Lab-Grown Round 0.30-0.49 N+ I | 900 | $596/ct | -25.8% | +847.4% |
| Lab-Grown Round 1.00-1.24 N+ I | 124 | $1,519/ct | -22.2% | +69.9% |
| Natural Cushion 0.20-0.29 N+ I | 106 | $31,338/ct | -17.8% | -37.5% |
| Lab-Grown Round 0.75-0.99 N+ I | 178 | $1,152/ct | -14.1% | +220.8% |
| Lab-Grown Oval 1.00-1.24 J-K I | 207 | $4,273/ct | -8.6% | +30.2% |
| Lab-Grown Round 2.50-2.99 J-K I | 122 | $10,047/ct | -6.5% | +13.0% |
| Lab-Grown Round 0.20-0.29 F-G I | 152 | $667/ct | -6.1% | +0.0% |
| Natural Round 5.00-9.99 H-I I | 124 | $17,126/ct | -5.9% | -4.6% |
| Natural Princess 0.75-0.99 D-E I | 113 | $3,106/ct | -5.8% | +0.0% |
| Natural Marquise 1.00-1.24 F-G I | 190 | $4,420/ct | -5.7% | +5.6% |
| Natural Marquise 1.00-1.24 H-I I | 182 | $3,459/ct | -5.6% | +5.8% |
| Natural Round 0.20-0.29 F-G I | 130 | $1,576/ct | -5.4% | +11.1% |
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