Lab-Grown Diamond Price Per Carat in Canada: October 2026 Index

As of October 14, 2026, lab-grown diamond jewelry at DEEVE costs between CA$685 and CA$2,858 per carat (US$482 to US$2,011), depending on the kind of piece and its total weight. This index divides the listed price of every engagement ring, tennis bracelet and pair of stud earrings in the lab-grown diamond collection by its total carat weight, so you can compare a solitaire, a strand and a pair of studs on one scale. The figures are read from the live store on the date above and refreshed each month.

Lab-Grown Diamond Price per Carat: October 2026 at a Glance

Three kinds of piece, read on the same day in Canadian and US dollars. The ranges below run from the lightest to the heaviest weight DEEVE lists in each category.

Two patterns stand out. In engagement rings and tennis bracelets, the price per carat falls steadily as the piece gets heavier. In stud earrings it stays within a narrow band at every weight. Each section below gives the full table.

Mentioned in this piece 2 Carat Lab Grown Diamond Tennis Bracelet in 14K White or Yellow Gold $2,065.00 View the piece

How We Measured

The method is deliberately simple, so anyone can check it against the store.

• Which pieces: every available solitaire engagement ring, tennis bracelet and pair of stud earrings in the lab-grown diamond collection on October 14, 2026. All are set in 14K gold.
• Which price: the price most available sizes of a piece carry. A single size priced apart from the rest is left out, so one unusual listing cannot move the index.
• Which weight: the total carat weight named in the piece's own title: the stone of a solitaire, the full strand of a bracelet, both stones of a pair of studs.
• Price per carat: price divided by total carat weight, rounded to the nearest dollar. Where a weight is offered in several shapes, the table shows the middle value across them.
• Currencies: Canadian prices are read from deeve.ca and US prices from houseofdeeve.com in the same pass, and the two are checked against each other before either is used.

Eternity rings join the index from the November edition.

Engagement Rings: Price per Carat

Every lab-grown solitaire DEEVE lists is a single stone in a 14K gold setting, offered in six shapes. At each weight the six shapes share a price, so the table holds for round, oval, cushion, princess, radiant and emerald cuts alike.

A 1 ct round solitaire works out to CA$2,858 per carat. At 5 ct the figure is CA$1,130, well under half. The step from 1 ct to 1.5 ct adds half a carat for CA$324; the step from 3 ct to 5 ct adds two carats for CA$1,492. A 3 ct oval solitaire sits in the middle of the range at CA$1,386 per carat.

Per carat is a yardstick, not a verdict. Two rings of the same weight can still differ in cut, color, clarity and setting, and those differences are part of what a price buys.

Tennis Bracelets: Price per Carat

A tennis bracelet spreads its weight across a full strand of smaller stones, so its numbers behave differently from a solitaire's. DEEVE lists eight weights, from 2 ct to 10 ct.

The 2 ct strand works out to CA$1,468 per carat; the 10 ct strand to CA$685. Each additional carat between 2 ct and 8 ct adds a near-constant amount to the price, which is why the per-carat figure keeps falling as the strand gets heavier. For how weight changes the look of a strand on the wrist, see our guide to choosing a lab-grown diamond tennis bracelet.

Stud Earrings: Price per Carat

Stud weights are quoted for the pair, so a 1 ct pair holds two stones of about half a carat each.

Unlike rings and bracelets, studs hold a steady price per carat across the range: the 1 ct pair at CA$1,129 per carat and the 2 ct pair at CA$968 sit within a few hundred dollars of every other weight. Choosing studs is therefore more a question of the size you want to see on the ear than of finding a better rate per carat.

Reading the Numbers

The index answers one narrow question: how much carat weight a given budget buys in each kind of piece, at DEEVE, on the date shown. It does not grade stones, and it does not compare DEEVE with other sellers. For what else shapes the cost of a lab-grown diamond, and what a budget buys beyond weight, see the cost section of our complete guide to lab-grown diamonds.

Three things are worth keeping in mind when you use these figures. First, they are dated: the store's Canadian prices follow the exchange rate, so a figure read on another day may differ by a few dollars. Second, the rate per carat is not the same as value; a heavier piece is not automatically the better choice for the person wearing it. Third, every figure here can be checked on the product page it comes from, which is linked in the text above.

How the Index Is Kept Current

The index is read again from the live store every month and republished with the new date, method unchanged. If a piece is added or retired, its row appears or disappears in the next edition. The date at the top of this page is the date every figure was read.

To see every piece behind these numbers, browse the lab-grown diamond collection, or go straight to the tennis bracelets, stud earrings and engagement rings.

Every DEEVE piece carries a lifetime warranty, and questions about any listing are answered by our team at support@deeve.ca.