Reflections Craft
Sign In

· 7 min read

Best Time of Year to Buy a Diamond in Canada

The best time of year to buy a diamond is less about seasonal sales than exchange rates, metal prices and lead time. Here is what moves your CAD total.

There is no month when loose diamonds are marked down the way mattresses are. In Canada, the three things that actually change your final number are the US dollar exchange rate on the day you pay, the metal price for your setting, and how much runway you leave before your deadline. Everything else sold as "the best time of year to buy" is really about crowded workshops and your own patience.

Why the calendar feels like it should matter

Engagement buying clusters. Proposals concentrate around the December holidays, Valentine's Day and the summer, and jewellery retail follows. Statistics Canada's retail trade release for December 2025, published on 20 February 2026, reported that sales at "clothing, clothing accessories, shoes, jewelry, luggage and leather goods retailers" rose 9.6% over the full year 2025, one of the stronger categories that year (Statistics Canada).

Two honest caveats about that figure. It lumps jewellery in with clothing and luggage, so it is not a jewellery-only signal. And the release states that "All data in this release are seasonally adjusted and expressed in current dollars, unless otherwise noted", which means the headline numbers have had the December bump deliberately removed. I cannot point you to a clean public series showing what Canadians spend on diamonds by month, and I am not going to pretend one exists.

More to the point, heavy demand in November does not mean the same stone is cheaper in March. A loose diamond is a globally traded item quoted in US dollars. A retailer running a January promotion is discounting its own margin, not the replacement cost of the stone. That discount is real money, but it is a store decision, not a season.

The exchange rate is the biggest calendar effect in Canada

Because rough and polished diamonds trade in US dollars, the CAD price of a stone moves with the currency even when nothing about the stone changes. The Bank of Canada publishes a daily average USD/CAD rate, described on its own site as "indicative rates only, obtained from averages of aggregated price quotes from financial institutions", published "once each business day by 16:30 ET" (Bank of Canada).

Pulling the 2026 series from the Bank's data service, the US dollar opened the year at 1.3737 CAD on 2 January 2026, hit a low of 1.3515 on 29 January, peaked at 1.4234 on 24 June, and sat at 1.4002 on 18 September 2026 (Bank of Canada exchange rate data). That is a spread of about 5.3% between the cheapest and dearest day so far this year, on the currency alone.

Here is what that gap is worth on a stone quoted in US dollars, before tax and before the setting:

Stone quoted in USDAt 1.3515 (29 Jan 2026)At 1.4234 (24 Jun 2026)Difference
$2,000$2,703 CAD$2,847 CAD$144
$3,500$4,730 CAD$4,982 CAD$252
$6,000$8,109 CAD$8,540 CAD$431
$10,000$13,515 CAD$14,234 CAD$719

That is larger than most seasonal promotions, and it has nothing to do with the diamond. The catch is that nobody can act on it in advance. On 29 January there was no way to know June would be worse, and the rate on the day you are ready is the rate you get. Treat currency as the reason a quote from six weeks ago may not hold, not as a reason to delay a purchase you are ready to make.

Metal moved more in a year than any sale will

The setting is priced off the metal market, and gold has run hard. The US Geological Survey's Mineral Commodity Summaries, published February 2026, lists Engelhard's average annual gold price as:

  • 2021: $1,801 per troy ounce
  • 2022: $1,802
  • 2023: $1,945
  • 2024: $2,388
  • 2025 (estimated): $3,300

USGS adds that "The estimated gold price in 2025 increased by 38% and reached a new record-high annual price compared with the previous record-high annual price in 2024", and that global consumption of gold in jewellery fell 20% in the first nine months of 2025 against the same period in 2024 (USGS, Mineral Commodity Summaries 2026, Gold).

What that means for a ring: on a slim solitaire, metal is a modest share of the total and a gold move barely registers. On a wide band, a chunky cathedral shank, or anything in platinum, it registers plainly. If metal prices are the thing squeezing your budget, the useful lever is design, not timing. A narrower band in 14k does more for the total than waiting for a quieter month, and you can compare shank widths directly across engagement ring settings.

The deadlines that actually matter

For most people, "when should I buy" is really "when do I need to start". A custom ring is made, not picked off a shelf, and the calendar pressure is on the making.

  1. Settle the shape and rough budget. This is the slowest step because it is the one that involves another person's taste.
  2. Choose the setting, then search stones against it. Not the reverse: the setting dictates the shape and the workable size range.
  3. Confirm the stone and its lab report, and check the measurements against the setting's seat rather than trusting carat weight alone.
  4. Preview the pairing in 3D so you see the real proportions before anything is cast.
  5. Add the finishing decisions, metal, finger size and engraving, at the complete the ring stage.
  6. Leave slack after that for sizing and quality control, and more slack if the date is fixed.

If you are proposing in December, start in early November rather than late. Mid-January is the practical start for Valentine's Day. Not because prices change, but because bench time is the scarce resource in those weeks and a rushed sizing is how a ring arrives wrong.

Where the savings actually are, any month of the year

Buy just under a magic size

GIA defines a metric carat as "200 milligrams", subdivided into 100 points, and notes that "Certain carat weights are considered to be magic sizes for their desirability – 1.00 carat, 1.50 carats, and 2.00 carats". It adds: "Although it is difficult to visually distinguish a 0.99 carat diamond from a 1.00 carat, the price difference can be significant" (GIA, Diamond Carat Weight). A 0.92 or 1.40 carat stone routinely saves more than any seasonal promotion, and the difference in diameter is a fraction of a millimetre.

Spend on cut, not on the top of the colour and clarity scales

GIA assesses cut by "the major components of a diamond, as well as its ability to interact with light", grading face-up appearance, design and craftsmanship on a scale of Excellent, Very Good, Good, Fair and Poor. Note the limit GIA itself states: numerical cut grades apply only to round brilliants, "the only cut that have standardized facets", while other shapes are assessed as fancy shapes without a formal cut grade (GIA, Diamond Cut).

So for a round, cut grade is the one line on the report that reliably predicts how the stone behaves in daylight, and it is worth paying for. For an oval, pear or emerald cut, there is no cut grade to buy, and you are relying on your own eyes and the proportions. That is a real gap in the evidence, not a detail we can grade our way around.

The flip side: paying up to D colour and Flawless is not worth it for most buyers. In a yellow or rose gold setting especially, the difference between D and G is invisible on the finger, and the difference between VS2 and a well-chosen SI1 usually is too. We have written that comparison out in more detail in the guides on the blog.

Do not wait on lab-grown prices

Lab-grown prices have trended downward for years, and buyers often ask whether waiting another season will help. I am not going to put a number on that trend, because I have no dated, authoritative series I can cite for it, and a number pulled from memory is worse than no number. What I can say plainly: if the argument for waiting is that the item will be cheaper later, that is an argument about a falling price, and it applies equally to the ring you buy next spring. Buy the one you want when you are ready, and choose lab-grown because you want more size for the money, not because you expect to time the bottom.

What to do next

Pick the setting first, because it sets the shape and the size range you should even be searching. Then run a loose diamond search against that range, look hard at cut and at stones just under the magic weights, and preview the pair in 3D before you commit. If your date is fixed, count backwards from it today rather than waiting for a month that was never going to be cheaper.

Sources