Price - Canada
3 ct Lab-Grown Diamond Stud Earrings - Price in Canada
A 3 ct (total weight) pair of lab-grown diamond studs currently maps to roughly $1,400+ CAD in the Carat Theory catalogue where matching inventory is available. Studs are selected for E-F colour and VVS clarity, set in solid 14K gold.
Sizes and prices at a glance
| Total weight | Per stone | Diameter | Indicative price |
|---|---|---|---|
| 0.5 ct | 0.25 ct | 4.1 mm | $510-$740 |
| 1 ct | 0.5 ct | 5.2 mm | $740-$1,010 |
| 1.5 ct | 0.75 ct | 5.8 mm | $1,080-$1,190 |
| 2 ct | 1.0 ct | 6.5 mm | $1,400-$1,510 |
| 3 ct | 1.5 ct | 7.4 mm | $1,400+ |
Current Carat Theory ranges, based on available pieces and adjacent carat weights in the collection.
Before you keep reading
Our largest round solitaire pair currently offered is 2 CT, not 3 CT.
This page is still useful for understanding what a 3 ct total actually looks like (see below) and how its price would sit relative to nearby sizes. But Carat Theory does not yet make a round pair at approximately 3 CT total - the closest pair we actually sell today is the Lumière Stud 2 CT (2.02 CT total, verified). The pieces shown further down this page are drawn from our current solitaire collection, not a 3 CT pair.
What 3 ct looks like on the ear
A 3 ct total is about 1.5 ct per stone (~7.4 mm). It reads as bold, unmistakable sparkle - a confident presence that still wears every day.
What to check before you buy
- Cut first - it is what creates the sparkle.
- 14K gold, never plated for an everyday piece.
- The right backing - it should feel secure and comfortable for the specific piece. Push-back vs screw-back.
- IGI certification. E-F colour, VVS clarity. Each 1.5 ct stone carries its own independent IGI certificate.
More in our stud buying guide and the size guide.
Shop diamond studs
Closest available sizes

The Lumière Stud 2 CT
2.02 CT. T.W.ROUND BRILLIANT$1,400.00
The Crest Stud
1.20 CT. T.W.PRINCESS$1,010.00
The Lumière Stud 1.5 CT
1.48 CT. T.W.ROUND BRILLIANT$1,080.00
The Tableau Stud
1.20 CT. T.W.EMERALD$970.00Complimentary shipping and free 14-day returns - decide with total peace of mind, at no cost.
Frequently asked
How much do 3 ct diamond stud earrings cost in Canada?
Carat Theory does not yet sell a round pair at approximately 3 CT total. As a reference point, such a pair would likely run around $1,400+ CAD based on market pricing. Our closest pair actually for sale is the Lumière Stud 2 CT (2.02 CT total, verified), set in solid 14K gold.
What does 3 ct mean for stud earrings?
It is the pair's total carat weight - about 1.5 ct per stone (roughly 7.4 mm across). On the ear it reads as bold, unmistakable sparkle.
What quality are the diamonds?
E-F colour, VVS clarity. Each 1.5 ct stone carries its own independent IGI certificate.
Other sizes
0.5 ct studs · 1 ct studs · 1.5 ct studs · 2 ct studs ·







