Price Trends in New Zealand
Track which diamond categories are rising or falling in price across the market. Pricing shown in NZD.
Last updated 3 November 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 |
|---|---|---|---|---|
| Lab-Grown Oval 3.00-3.99 H-I VVS2 | 2,904 | $1,041/ct | +14.4% | +3.1% |
| Lab-Grown Oval 3.00-3.99 H-I VVS1 | 231 | $1,375/ct | +14.4% | +3.1% |
| Natural Cushion 1.50-1.99 N+ SI2 | 725 | $7,606/ct | +13.5% | -4.0% |
| Natural Cushion 1.50-1.99 N+ SI1 | 1,500 | $6,295/ct | +13.5% | -4.0% |
| Lab-Grown Round 0.20-0.29 D-E IF | 353 | $1,456/ct | +10.9% | +42.8% |
| Lab-Grown Round 0.20-0.29 D-E FL | 848 | $1,633/ct | +10.9% | +42.8% |
Falling This Week
| Category | Listings | Avg. Price | 7-Day Change | Supply Change |
|---|---|---|---|---|
| Lab-Grown Oval 10.00+ D-E SI1 | 167 | $615/ct | -30.5% | +38.4% |
| Lab-Grown Asscher 3.00-3.99 H-I VVS1 | 107 | $2,735/ct | -28.3% | +29.5% |
| Lab-Grown Asscher 3.00-3.99 H-I VVS2 | 466 | $1,323/ct | -28.3% | +29.5% |
| Lab-Grown Cushion 4.00-4.99 F-G SI1 | 416 | $617/ct | -21.9% | +13.6% |
| Lab-Grown Cushion 1.50-1.99 H-I SI1 | 249 | $1,092/ct | -17.5% | -2.6% |
| Lab-Grown Oval 10.00+ F-G SI1 | 434 | $578/ct | -17.1% | +61.1% |
| Lab-Grown Marquise 0.20-0.29 D-E VS2 | 146 | $1,050/ct | -17.0% | +16.1% |
| Lab-Grown Marquise 0.20-0.29 D-E VS1 | 618 | $593/ct | -17.0% | +16.1% |
| Lab-Grown Round 0.20-0.29 F-G VS1 | 327 | $662/ct | -16.0% | +12.4% |
| Lab-Grown Round 0.20-0.29 F-G VS2 | 149 | $1,100/ct | -16.0% | +12.4% |
| Lab-Grown Marquise 5.00-9.99 F-G SI1 | 335 | $510/ct | -15.8% | +26.0% |
| Lab-Grown Princess 2.50-2.99 D-E SI1 | 182 | $692/ct | -15.3% | +28.7% |
| Lab-Grown Marquise 0.75-0.99 D-E SI1 | 342 | $699/ct | -15.1% | +49.4% |
| Lab-Grown Princess 2.00-2.49 D-E FL | 6,190 | $2,027/ct | -14.0% | +2.1% |
| Lab-Grown Princess 2.00-2.49 D-E IF | 7,104 | $1,986/ct | -14.0% | +2.1% |
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