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1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified

1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified

Best price now

$479.00at AmazonObserved at 8:43 AM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the 1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified

This is a loose 1.5 carat round brilliant lab grown diamond graded D (colorless) and VVS1 (very very slightly included) by IGI, with an Excellent cut. It measures about 7.4 mm across, giving it noticeable presence on the finger. The best new price is $479 at Amazon as of November 5, 2026; two stores list it new, so compare settings and shipping before buying.

Best forShoppers who want a colorless, high-clarity diamond without mined-stone costBuyers planning a custom engagement ring or pendantThose who prefer a certified stone with a paper trailGift-givers looking for a 1.5 ct center stone
Pros
  • D color is the top grade, so it looks white in any metal
  • VVS1 clarity is eye-clean and then some
  • Excellent cut supports strong light return
  • IGI certificate confirms grading
  • Lab grown origin keeps the price well below a mined equivalent
Cons
  • Sold loose, so a setting costs extra
  • VVS1 clarity is overkill for the naked eye; VS grades look the same
  • Lab grown diamonds resell for much less than mined ones
  • Only two stores list it new, so price competition is limited

1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified prices at every store

  • Grown LeoNew

    In stockReturn policy

    $609.00Observed at 8:43 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $479.00Free shippingObserved at 8:43 AM
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Also available at

  • Brilliance.comCheck price at Brilliance.com

1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified price history

Lowest price we've seen: $479.00 on Nov 5 at Amazon. Tracked across 2 stores since Nov 5.

From Grown Leo

  • 1.5 carat round brilliant lab grown diamond
  • D color, the highest color grade, completely colorless
  • VVS1 clarity, inclusions extremely hard to find even at 10x magnification
  • Excellent cut for strong fire, brilliance and light return
  • Measures approximately 7.4 mm
  • Sold loose, ready to be set
Sizes
1 CT, 1.5 CT, 2 CT, 2.5 CT, 3 CT, 3.5 CT, 4 CT, 4.5 CT, 5 CT, 6 CT, 7 CT, 8 CT, 9 CT, 10 CT
Materials
Lab grown diamond (real carbon crystal)
Fit
Round brilliant with 57 or 58 facets; suits every metal and setting style
Sizing
Grown Leo rings are offered in US sizes 4 to 12.
Guarantee
2 Year Warranty
Returns
Free Shipping & Exchanges
Shipping
Free worldwide shipping; made to order, shipping takes up to 3-14 days; ships in fully recyclable and biodegradable signature boxes
In the box
Loose lab grown diamond, IGI grading report
Size chart
US & CanadaUK & AustraliaEurope & Middle EastJapan, China, KoreaIndiaItaly, Spain, Switzerlan
3F44.2
45
14
3½G45.5
6
H46.8
7
15
4½I48.0
8
15.5
J½49.3

About the 1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified

This is a 1.5 carat round brilliant lab grown diamond with D color, VVS1 clarity and an Excellent cut, certified by IGI. It measures approximately 7.4 mm and is sold loose, ready to be set.

Shape

Round

Carat weight

1.50 ct

Color

D

Clarity

VVS1

Cut

Excellent

Approximate size

7.4 mm

Grading lab

IGI

Origin

Lab grown

About D VVS1 in a round

D is the highest color grade: completely colorless, with no trace of warmth even beside platinum. VVS1 inclusions are so minute that a trained grader struggles to find them at 10x magnification. In a round, VVS1 is clarity well beyond what the eye can see; you are paying for rarity rather than a visible difference compared with VS grades.

How D VVS1 compares with nearby grades

• E VVS1, one color grade lower: still colorless, and the difference is only visible to a grader.

• D VVS2, one clarity grade lower: slightly more inclusions under magnification, typically still eye-clean.

How big is a 1.5 carat round?

At 1.5 carats the diamond has clear presence on the finger and is a popular step up from the classic 1 carat. This stone measures about 7.4 mm. For comparison, a 1 carat round measures about 6.4 mm; a 2 carat round measures about 8.1 mm. A 1.5 carat round keeps its outline crisp and balanced at this size.

Specifications

Carat
1.50
Color
D
Clarity
VVS1
Cut
Excellent
Certificate
IGI

Questions and answers

Is a 1.5 carat round lab grown diamond worth it?
If you want a colorless, certified stone at a fraction of mined-diamond prices, yes. At $479 at Amazon as of November 5, 2026, it is a low entry point for a 1.5 ct D VVS1. Keep in mind lab grown resale value is weak.
How does this compare with a 1 carat round?
A 1.5 ct round measures about 7.4 mm, versus about 6.4 mm for 1 ct. That is a noticeable size jump on the hand. The price also rises faster than the diameter because larger stones are rarer.
Do I need VVS1 clarity?
No. VVS1 inclusions are invisible to the eye and hard to see even under 10x magnification. A VS1 or VS2 stone would look the same in a ring and cost less.
What is included with the diamond?
You get the loose lab grown diamond and its IGI grading report. A ring setting, band, or jewelry box is not included unless the store lists it separately.
When is the best time to buy?
Lab grown diamond prices have been falling, so there is no strong seasonal pattern. Compare the two stores listing it new and check the price history before buying. The current best is $479 at Amazon as of November 5, 2026.
Can I return it if I don't like it?
Return policies vary by store. Check the specific store's policy before buying, since loose diamonds are often subject to different rules than finished jewelry.
Where is the 1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified cheapest?
At Amazon, for $479.00, as of our latest check.
Where can I buy the 1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS1 Clarity, IGI Certified?
3 stores we checked sell it, including Grown Leo, Amazon, Brilliance.com.

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