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Marquise|Lab Grown|IGI

3.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG790612027

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790612027

Diamond specifications and retailer prices

From $4,541 USD
As of November 2, 2026
Save $14,282 USD (76%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $18,823 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790612027 or 790612027. Listed at 24 retailers as of October 31, 2026, with prices from $4,541 to $18,823, a $14,282 spread on the same certified stone. Taylor and Hart lists it at $18,823. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.03
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790612027
Dimensions14.50 × 7.59 × 4.80 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
14.50 mm7.59 mm3.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790612027
Side View
Table 58.0%Crown 37°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $12,268 USD|Low: $4,360 USD|High: $18,117 USD|Avg: $8,274 USD|+2.2%
Retailer 1
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Retailer 19
November 3, 2026
Retailer 18$4,541 USD
Retailer 6$4,759 USD
Retailer 9$4,910 USD
Retailer 10$5,086 USD
Retailer 3$5,268 USD
Retailer 7$5,268 USD
Retailer 17$5,305 USD
Retailer 5$6,583 USD
Retailer 16$6,728 USD
Retailer 12$6,840 USD
Retailer 11$7,421 USD
Retailer 19$8,035 USD
Retailer 4$8,148 USD
Retailer 15$8,596 USD
Retailer 13$10,908 USD
Retailer 14$11,930 USD
Retailer 1$12,268 USD
Retailer 2$13,267 USD
Retailer 8$18,117 USD

41 data points across 19 retailers

24 retailers$4,541 USD to $18,823 USD

A
Cheapest Retailer
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$4,541 USD
A
Retailer 2
-
$4,759 USD
View
A
Retailer 3
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$4,789 USD
View
A
Retailer 4
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$4,910 USD
View
A
Retailer 5
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$5,086 USD
View
Final sale: no returns
Retailer 6
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$5,268 USD
View
Price last confirmed 19 days ago
A
Retailer 7
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$5,268 USD
View
A
Retailer 8
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$5,305 USD
View
A
Retailer 9
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$6,259 USD
View
B+
Retailer 10
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$6,583 USD
View
B+
Retailer 11
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$6,728 USD
View
B+
Retailer 12
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$6,840 USD
View
B+
Retailer 13
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$7,421 USD
View
Retailer 14
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$8,035 USD
View
Price last confirmed 28 days ago
B+
Retailer 15
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$8,148 USD
View
B+
Retailer 16
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$8,596 USD
View
B+
Retailer 17
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$10,908 USD
View
B+
Retailer 18
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$11,930 USD
View
B
Retailer 19
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$12,268 USD
View
B
Retailer 20
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$12,684 USD
View
B
Retailer 21
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$13,267 USD
View
B
Retailer 22
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$15,354 USD
View
B
Retailer 23
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$18,117 USD
View
Most Expensive
B
Taylor and Hart
467C1NR · Oct 31
$18,823 USD
View
23 more retailers have this diamond
Prices start from $4,541 USDSave up to $14,282 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.03ct Marquise
$4,541 USD