Slight Increase in Polished Diamond Prices in DecemberJanuary 01, 18
(IDEX Online News) – There was a small rise in the IDEX polished diamond price index during December following a flat performance in November.
The Index began the month at 120.02 and ended at 120.90.
Diamond Prices Show Multi-Month Decline
Polished diamond prices have declined since the middle of last year, although there has been a very slight increase in recent months. Nonetheless, the index is at one of its lowest points for more than three years as the graph below illustrates.
The graph of polished diamond prices since January 2014 shows an 8.6-percent decline to-date.
On a month-to-month basis, global polished diamond prices in December saw an increase of 0.7 percent over November.
On a year-over-year basis, the average price in December showed a 1.1-percent decrease.
Diamond Prices by Size
On a month-to-month basis – comparing prices during December 2017 to November 2017 – there were five rising categories and one decliner as seen in the graph below.
On a year-over-year basis, there were four decliners and two risers – the 2.0-carat and 3.0 carat categories – as can be seen in the graph below.
Over the longer term, the general trend is that 4-carat stones have shown the most price volatility, although 3-carat diamonds have displayed the steepest year-over-year decline since mid-2015, as the graph below illustrates. From December 2015 onwards, there has been relative price stability in 1-carat, 1.5-carat and 2-carat stones.
Sentiment in the diamond centers was generally positive in the global diamond centers, with diamantaires looking forward to strong holiday sales and the Chinese New Year sales period.
Sales were strong in the United States, the largest diamond jewelry market in the world. Mastercard SpendingPulse reported that holiday jewelry sales in the November-December period jumped 5.9 percent on the year, boosted by late sales.