When shopping for diamonds—whether for a ring, earrings, or other jewelry—it’s common to come across various carat weights. One popular and affordable choice is the 1/4 carat diamond, offering subtle sparkle without the premium price of larger stones.
But how much is a 1/4 carat diamond worth? And how does it compare to other sizes like 1/10, 1/3, or 1.5 carats?
Let’s dive into the details.
What Is a 1/4 Carat Diamond?
A 1/4 carat diamond (also written as 0.25 carats) weighs 0.05 grams or 25 points. In the jewelry world, this is considered a small yet noticeable size—perfect for solitaire studs, petite engagement rings, or minimalist pendant necklaces.
How Big Is a 1/4 Carat Diamond?
The size of a diamond depends on its cut and shape, but in general:
A round-cut 1/4 carat diamond measures about 4.1mm in diameter.
In contrast, 1/10 carat diamonds are about 3.0mm, making 1/4 carat significantly larger.
1/3 carat diamonds are typically around 4.4mm, slightly bigger than 1/4.
A 1.5 carat diamond measures closer to 7.4mm, much larger by comparison.
Which Is Bigger: 1/10 or 1/4 Carat Diamond?
1/4 carat is bigger.
1/4 carat = 0.25 ct
1/10 carat = 0.10 ct
That means a 1/4 carat diamond is 2.5 times heavier than a 1/10 carat stone and looks significantly larger.
Which Is Bigger: 1/3 or 1/4 Carat Diamond?
1/3 carat is bigger.
1/3 carat = 0.33 ct
1/4 carat = 0.25 ct
While the size difference may not seem huge, a 1/3 carat diamond has a larger diameter and slightly more visual presence than a 1/4 carat stone.
Which Is Bigger: 1/4 or 1.5 Carat Diamond?
There’s no contest here. 1.5 carats is six times larger in weight than a 1/4 carat diamond, and it appears much larger visually.

How Much Is a 1/4 Carat Diamond Worth?
The price of a 1/4 carat diamond depends on:
Cut quality (Excellent, Very Good, Good)
Clarity (e.g., VS1, SI2)
Color grade (from D to Z)
Shape (round, cushion, princess, etc.)
Certification (GIA, IGI, etc.)
- What is the best clarity for a diamond
Average Price Range:
Type | Average Price Range (USD) |
---|---|
Loose 1/4 carat diamond | $250 – $750 |
1/4 carat diamond ring | $400 – $1,200 |
1/4 carat diamond stud earrings | $300 – $900 (pair) |
1/4 carat diamond halo ring | $700 – $1,500+ |
Note: Prices vary based on setting metal (gold, platinum, etc.) and brand markup.
What Is a 1/4 Carat Diamond Worth in Jewelry?
In finished jewelry, the value of a 1/4 carat diamond increases based on design and craftsmanship. For example:
A 1/4 carat diamond ring with a high-quality setting can cost over $1,000.
A pair of 1/4 carat diamond stud earrings may cost between $500 and $900, depending on if 0.25 carat is per stud or total weight.
What Does a 1/4 Carat Diamond Look Like?
A 1/4 carat diamond is elegant, small, and classic. It’s ideal for:
Stackable engagement rings
Petite solitaire rings
Minimalist pendants
It offers a noticeable sparkle without being flashy—perfect for everyday wear or those who prefer a delicate style.
Is a 1/4 Carat Diamond Good?
Yes. A 1/4 carat diamond is a good option if you’re looking for:
Affordability
Simplicity
Daily wear pieces
While it’s not large, a well-cut 0.25 ct stone with good clarity and color can sparkle beautifully and hold excellent value for its size.
How Big Are 1/4 Carat Diamond Earrings?
A pair of 1/4 carat diamond stud earrings could mean either:

- 0.25 carats total weight (0.125 ct per stud): Smaller, subtle sparkle
0.25 carats per stud (0.50 ct total): More pronounced, ideal for special occasions
Always check the total carat weight (TCW) when buying earrings.
FAQs
Q: What does 1/4 carat diamond mean?
A: It means the diamond weighs 0.25 carats, or 25 points.
Q: How much does a 1/4 carat diamond cost?
A: Prices range from $250–$750 for a loose stone and $400–$1,200+ in finished jewelry.
Q: How big is a 1/4 carat diamond?
A: About 4.1 mm in diameter for a round cut.
Q: What is a 1/4 carat diamond worth?
A: The value varies based on quality and setting but generally falls between $250 and $1,000.
Q: How much are 1/4 carat diamond earrings worth?
A: Between $300 and $900, depending on total weight and metal type.
Q: Which is bigger: 1/3 or 1/4 carat diamond?
A: 1/3 carat is larger than 1/4 carat.
Q: Is a 1/4 carat diamond good for an engagement ring?
A: Yes, especially for minimalist designs or stacked ring sets.
Conclusion
Whether you’re shopping for a ring, necklace, or 1/4 carat diamond stud earrings, knowing the size, cost, and comparisons will help you make a confident, informed choice.
So, how much is a 1/4 carat diamond worth? The answer depends on quality—but it’s clear that this diamond size delivers affordable luxury, elegant sparkle, and everyday wearability.