How much does a 1.5 carat natural diamond cost?

As of August 2026, a 1.5 carat natural marquise diamond typically sells for $10,340–$12,710, with a fair market price of $11,550. Based on 87 live listings, updated 2026-08-15. Source: The Diamond Price (thediamondprice.com).

How much does a 1.5 carat Marquise natural diamond cost?

The price of a 1.5 carat natural Marquise diamond varies based on the 4Cs (cut, color, clarity, and carat). Prices typically range from $8,790 to $17,870, with a median price of $13,102. Use our real-time price calculator to get accurate pricing based on your specific quality parameters.

What factors affect 1.5 carat Marquise diamond prices?

The main factors affecting 1.5 carat Marquise diamond prices are: 1) Cut quality (Excellent to Poor), 2) Color grade (D-Z scale, with D being colorless), 3) Clarity (FL to I3, with FL being flawless), and 4) Certification (GIA, AGS, IGI). Additional factors include fluorescence, polish, symmetry, and current market demand.

Is a 1.5 carat Marquise diamond a good size?

A 1.5 carat Marquise diamond is a popular choice that offers excellent presence and value. The Marquise shape provides beautiful brilliance and fire, making it an excellent option for engagement rings. This size is substantial enough to make a statement while remaining practical for everyday wear.

What is the best quality 1.5 carat Marquise diamond for my budget?

For the best value in a 1.5 carat Marquise diamond, consider a G-H color grade with VS1-VS2 clarity and Excellent or Very Good cut. This combination offers excellent visual appeal while optimizing your budget. The cut quality is most important for brilliance, so prioritize Excellent cut even if it means compromising slightly on color or clarity.

Should I buy a certified 1.5 carat Marquise diamond?

Yes, always purchase a certified 1.5 carat Marquise diamond from a reputable laboratory like GIA, AGS, or IGI. Certification provides independent verification of the diamond's characteristics and ensures you're getting what you pay for. For diamonds of this size, certification is essential for both value protection and resale potential.

How much more expensive is a 1.5 carat natural Marquise diamond compared to lab-grown?

A 1.5 carat natural Marquise diamond typically costs 40-60% more than an equivalent lab-grown diamond. Natural diamonds command a premium due to their rarity, natural origin, and billions of years of formation. However, both are real diamonds with identical physical and optical properties.

What setting is best for a 1.5 carat Marquise diamond?

A 1.5 carat Marquise diamond pairs beautifully with various settings. Popular options include solitaire settings for maximum brilliance, halo settings to enhance size and sparkle, or three-stone settings for added elegance. The Marquise shape works particularly well in settings that complement its unique faceting pattern.

What is the difference between natural and lab-grown diamonds?

Natural diamonds are formed deep within the Earth over billions of years, while lab-grown diamonds are created in controlled laboratory environments in a matter of weeks. Both have identical physical, chemical, and optical properties. The main differences are origin, price (lab-grown are typically 30-40% less expensive), and rarity. Both are real diamonds and can be certified by major gemological laboratories.

How often are diamond prices updated?

Our diamond prices are updated daily based on real-time market data from thousands of certified diamonds across major retailers. We analyze current inventory, pricing trends, and market conditions to provide the most accurate and up-to-date pricing information available.

Where is the best place to buy a diamond?

The best place to buy a diamond is from reputable online retailers or established local jewelers who offer certified diamonds, transparent pricing, and good return policies. Online retailers often offer better prices due to lower overhead costs. Always verify certification, compare prices across multiple sources, and ensure the seller has a strong reputation and customer reviews.

How much does a 1.5 carat natural diamond cost?

As of August 2026, a 1.5 carat natural marquise diamond typically sells for $10,340–$12,710, with a fair market price of $11,550. Based on 87 live listings, updated 2026-08-15. Source: The Diamond Price (thediamondprice.com).

How much does a 1.5 carat Marquise natural diamond cost?

The price of a 1.5 carat natural Marquise diamond varies based on the 4Cs (cut, color, clarity, and carat). Prices typically range from $8,790 to $17,870, with a median price of $13,102. Use our real-time price calculator to get accurate pricing based on your specific quality parameters.

What factors affect 1.5 carat Marquise diamond prices?

The main factors affecting 1.5 carat Marquise diamond prices are: 1) Cut quality (Excellent to Poor), 2) Color grade (D-Z scale, with D being colorless), 3) Clarity (FL to I3, with FL being flawless), and 4) Certification (GIA, AGS, IGI). Additional factors include fluorescence, polish, symmetry, and current market demand.

Is a 1.5 carat Marquise diamond a good size?

A 1.5 carat Marquise diamond is a popular choice that offers excellent presence and value. The Marquise shape provides beautiful brilliance and fire, making it an excellent option for engagement rings. This size is substantial enough to make a statement while remaining practical for everyday wear.

What is the best quality 1.5 carat Marquise diamond for my budget?

For the best value in a 1.5 carat Marquise diamond, consider a G-H color grade with VS1-VS2 clarity and Excellent or Very Good cut. This combination offers excellent visual appeal while optimizing your budget. The cut quality is most important for brilliance, so prioritize Excellent cut even if it means compromising slightly on color or clarity.

Should I buy a certified 1.5 carat Marquise diamond?

Yes, always purchase a certified 1.5 carat Marquise diamond from a reputable laboratory like GIA, AGS, or IGI. Certification provides independent verification of the diamond's characteristics and ensures you're getting what you pay for. For diamonds of this size, certification is essential for both value protection and resale potential.

How much more expensive is a 1.5 carat natural Marquise diamond compared to lab-grown?

A 1.5 carat natural Marquise diamond typically costs 40-60% more than an equivalent lab-grown diamond. Natural diamonds command a premium due to their rarity, natural origin, and billions of years of formation. However, both are real diamonds with identical physical and optical properties.

What setting is best for a 1.5 carat Marquise diamond?

A 1.5 carat Marquise diamond pairs beautifully with various settings. Popular options include solitaire settings for maximum brilliance, halo settings to enhance size and sparkle, or three-stone settings for added elegance. The Marquise shape works particularly well in settings that complement its unique faceting pattern.

What is the difference between natural and lab-grown diamonds?

Natural diamonds are formed deep within the Earth over billions of years, while lab-grown diamonds are created in controlled laboratory environments in a matter of weeks. Both have identical physical, chemical, and optical properties. The main differences are origin, price (lab-grown are typically 30-40% less expensive), and rarity. Both are real diamonds and can be certified by major gemological laboratories.

How often are diamond prices updated?

Our diamond prices are updated daily based on real-time market data from thousands of certified diamonds across major retailers. We analyze current inventory, pricing trends, and market conditions to provide the most accurate and up-to-date pricing information available.

Where is the best place to buy a diamond?

The best place to buy a diamond is from reputable online retailers or established local jewelers who offer certified diamonds, transparent pricing, and good return policies. Online retailers often offer better prices due to lower overhead costs. Always verify certification, compare prices across multiple sources, and ensure the seller has a strong reputation and customer reviews.

Jewelry

Diamonds

Calculator

Blog

1.5 Carat Natural Marquise Diamond Prices

Fair Market Price:

$11,550

View All Diamonds →

Best Deal:

-29% $8,180

See Best Deal →

Current Market Range:

$10,340 – $12,710

Browse This Range →

Today's Recommendation

Excellent time to buy

Moderate confidence · Based on 87 diamonds

We don't have enough price history for this exact combination yet, so this reflects today's live listings only: 24.1% currently qualify as strong deals.

Why?

✓ 24.1% of listings checked qualify as strong deals

Best 1.5 carat marquise deals right now

Best deal

1.51 ct · I · VS1

$8,180

▼ 29% under fair price

👑 Best Overall

1.54 ct · I · VS1

$8,650

▼ 25% under fair price

Ideal cut (vs. Very Good) · Ideal proportions - better light performance

1.52 ct · I · SI1

$9,130

Based on 500,000+ diamonds tracked in real time · How we compute fair prices

Marquise engagement rings

Marquise Solitaire 1.5 CT Engagement Ring…

$5,565

Marquise Solitaire 1.52 CT Engagement Rin…

$6,428

Marquise Three Stone 1.4 CT Engagement Ri…

$6,790

Marquise Three Stone 1.5 CT Engagement Ri…

$7,034

Marquise Solitaire 1.5 CT Engagement Ring…

$8,214

Market Analysis What this means for you

Supply is healthy for this spec.
87 comparable diamonds analyzed — buyers have moderate negotiating power.
Best listing today is 22% below fair market price.
You shouldn’t pay more than $9,482 for this spec.

Price distribution 87 listings

3 diamonds
$8,180–$8,911 6 diamonds
$8,911–$9,642 16 diamonds
$9,642–$10,373 19 diamonds
$10,373–$11,104 14 diamonds
$11,104–$11,835 7 diamonds
$11,835–$12,565 6 diamonds
$12,565–$13,296 7 diamonds
$13,296–$14,027 4 diamonds
$14,027–$14,758 1 diamond
$14,758–$15,489 2 diamonds
$15,489–$16,220 2 above
over $16,220

Fair market
$11,550 Best deal
$8,180 Best overall
$8,650

Best $8,180 Overall $8,650 Fair $11,550

Fair market price: $11,550
Typical market range: $10,340 – $12,710
Best deal today: $8,180 29% below
Best overall today: $8,650

Marquise by carat market range

1.5 Carat Diamond Prices Table

Below are the current 1.5 carat natural diamond prices for the most popular diamond shapes. Each price is the median of the diamonds listed right now at this size and quality band. Click a shape for detail.

Shape	Typical price range	vs Round	Live stones
1.5ct Princess View details →	$5,490 – $9,340	▼ 26% less than round	252
1.5ct Asscher View details →	$5,810 – $9,020	▼ 24% less than round	101
1.5ct Emerald View details →	$6,680 – $8,910	▼ 20% less than round	355
1.5ct Cushion View details →	$4,950 – $9,300	▼ 19% less than round	229
1.5ct Heart View details →	$6,370 – $8,670	▼ 19% less than round	226
1.5ct Round View details →	$7,820 – $10,850	Reference	940
1.5ct Oval View details →	$8,180 – $10,480	Same	442
1.5ct Radiant View details →	$8,320 – $11,280	▲ 6% more than round	176
1.5ct Pear View details →	$8,690 – $11,500	▲ 9% more than round	129
1.5ct Marquise View details →	$11,860 – $14,340	▲ 43% more than round	43

Each figure is the median asking price of that shape’s live listings — not a like-for-like comparison between shapes. Cut grade is the biggest single driver of a diamond’s price, and our retailers don’t publish it, so we won’t tell you one shape is cheaper than another when we can’t hold cut constant.

Compare another shape at 1.5 ct

Frequently Asked Questions

The price of a 1.5 carat marquise diamond varies significantly based on the 4Cs (cut, color, clarity, and carat). On average, you can expect to pay anywhere from $2,000 to $25,000+ depending on quality. Use our price index above to see current market prices.

1.5 carat is a popular choice for engagement rings, offering excellent visibility and presence on the finger. It strikes a balance between size and value, making it one of the most sought-after carat weights.

Diamond prices fluctuate based on market supply and demand, currency exchange rates, mining output, and consumer trends. Seasonal factors like engagement season can also affect prices. Tracking historical prices helps you identify the best time to buy.

Both natural and lab-grown diamonds are genuine diamonds with identical physical properties. Lab-grown diamonds typically cost 40-60% less than natural diamonds of equivalent quality. Your choice depends on personal preference, budget, and values.

Insights

Latest from the Blog

August 8, 2026

How Much Is My Diamond Worth? Value It in 60 Seconds

Find your diamond's real market value today: enter carat, color, clarity and cut into our free calculator, plus what resale channels actually pay (40-60% below retail).

July 13, 2026

2.5 Carat Diamond Price 2026: What It Really Costs

2.5 carat natural diamonds: live fair market price today, real ranges by shape, and the 2.49ct trick that saves the round-number premium. Updated daily.

July 13, 2026

5 Carat Diamond Price 2026: What It Really Costs

5 carat natural diamonds: live fair market price today, real ranges by shape, and the 4.99ct trick that saves the round-number premium. Updated daily.

July 13, 2026

How Much Does a 0.5 Carat Lab-Grown Diamond Cost? (2026 Guide)

Live 0.5 carat lab-grown diamond prices: fair market price, typical range and the best value stones available right now.

1.5 Carat Natural Marquise Diamond Prices

Best 1.5 carat marquise deals right now

Marquise engagement rings

1.5 Carat Diamond Prices Table

About 1.5 Carat Marquise Diamond Prices

Why Track Marquise Diamond Prices?

What Affects 1.5 Carat Diamond Prices?

Buying Tips for 1.5 Carat Diamonds

Frequently Asked Questions

Latest from the Blog

How Much Is My Diamond Worth? Value It in 60 Seconds

2.5 Carat Diamond Price 2026: What It Really Costs

5 Carat Diamond Price 2026: What It Really Costs

How Much Does a 0.5 Carat Lab-Grown Diamond Cost? (2026 Guide)