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1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS2 Clarity, IGI Certified

1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS2 Clarity, IGI Certified

Best price now

$439.00at Grown LeoObserved at 8:45 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, VVS2 Clarity, IGI Certified

A loose 1.5 carat round brilliant lab grown diamond graded D color and VVS2 clarity with an Excellent cut, certified by IGI. It measures about 7.4 mm, so it has real presence on the finger and is a common step up from 1 carat. D is the top color grade and VVS2 is far cleaner than the eye can see, so you are paying for rarity rather than a visible difference. The best new price is $439 at Grown Leo as of November 5, 2026, and two stores list it new.

Best forShoppers building a custom engagement ringBuyers who want top color and clarity gradesAnyone comparing lab grown against mined diamondsShoppers who want a certified stone with a report
Pros
  • D color is fully colorless, even next to platinum
  • VVS2 is clean under 10x magnification
  • Excellent cut supports strong brilliance and fire
  • IGI report documents the grades
  • About 7.4 mm gives clear finger presence
  • Loose stone lets you choose the setting
Cons
  • VVS2 costs more than VS grades with no visible gain
  • D color premium is hard to see once set
  • Loose stone means setting and labor cost extra
  • Lab grown stones resell for much less than mined
  • Round cut hides little, so cut quality matters most

1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS2 Clarity, IGI Certified prices at every store

  • Grown LeoNew

    In stockReturn policy

    $439.00Observed at 8:45 AM
    Visit store
  • AmazonNew

    Availability unknown

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

    $509.00Free shippingObserved at 8:45 AM
    Visit store

1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS2 Clarity, IGI Certified price history

Lowest price we've seen: $509.00 on Nov 5 at Amazon. Tracked across 1 store since Nov 5.

From Grown Leo

  • 1.5 carat round brilliant lab grown diamond
  • D color, the highest color grade, completely colorless
  • VVS2 clarity, inclusions very hard to see even at 10x magnification
  • Excellent cut for strong fire, brilliance and light return
  • IGI certified with grading report
  • Measures approximately 7.4 mm
Materials
Lab grown diamond (real carbon crystal, chemically, physically and optically the same as a mined diamond)
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, VVS2 Clarity, IGI Certified

This is a 1.5 carat round brilliant lab grown diamond with D color, VVS2 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

VVS2

Cut

Excellent

Approximate size

7.4 mm

Grading lab

IGI

Origin

Lab grown

About D VVS2 in a round

D is the highest color grade: completely colorless, with no trace of warmth even beside platinum. VVS2 inclusions are very difficult to locate even at 10x magnification. In a round, VVS2 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 VVS2 compares with nearby grades

• E VVS2, one color grade lower: still colorless, and the difference is only visible to a grader.

• D VVS1, one clarity grade higher: fewer and smaller inclusions, invisible without magnification either way.

• D VS1, one clarity grade lower: slightly more inclusions under magnification, typically still eye-clean.

How big is a 1.5 carat round?

Specifications

Carat
1.50
Color
D
Clarity
VVS2
Cut
Excellent
Certificate
IGI

Questions and answers

Is a D VVS2 diamond worth the premium over E or VS grades?
Only if you want the top grades on paper. E color and VS1 clarity look the same to the eye once set. Put the savings into cut quality or a better setting instead.
How does this compare with a 1 carat round?
At about 7.4 mm it faces up noticeably larger than a 1 carat round, which is roughly 6.5 mm. The price jump is steep, so try both sizes on the hand before deciding.
What is included with the diamond?
You get the loose lab grown diamond and its IGI grading report. A setting, ring and any mounting labor are not included.
Will a jeweler set a loose lab grown diamond I bought online?
Most jewelers will, but some charge a setting fee or ask for the IGI report. Confirm the policy and insurance before shipping the stone.
When is the best time to buy?
Lab grown diamond prices have fallen for years, and the two-store spread here is worth checking. Compare both listings and watch the price history before buying.
Does the IGI certificate guarantee the grades?
It is an independent grading report, not a guarantee of value. Check that the report number matches the stone's laser inscription when it arrives.
Where is the 1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS2 Clarity, IGI Certified cheapest?
At Grown Leo, for $439.00, as of our latest check.
Where can I buy the 1.5 Carat Round Loose Lab Grown Diamond, D Color, VVS2 Clarity, IGI Certified?
2 stores we checked sell it, including Grown Leo, Amazon.

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