Marquise|Lab Grown|IGI

3.03ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG743594007

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG743594007

Diamond specifications and retailer prices

From $6,284 USD
As of November 3, 2026
Save $1,306 USD (17%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $18,182 USD at Michael Trio · As of October 23, 2026
View at Michael Trio

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743594007 or 743594007. Listed at 30 retailers as of November 3, 2026, with a relatively tight 21% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743594007
Dimensions14.98 × 7.65 × 4.71 mm
L/W Ratio1.96
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
14.98 mm7.65 mm3.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743594007
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 61.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 3
Current: $18,182 USD|Low: $3,523 USD|High: $26,650 USD|Avg: $9,562 USD
Michael Trio
Retailer 2
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October 24, 2026
Retailer 19$3,523 USD
Retailer 9$3,873 USD
Retailer 11$4,239 USD
Retailer 4$4,550 USD
Retailer 12$5,151 USD
Retailer 21$5,755 USD
Retailer 23$5,931 USD
Retailer 3$5,958 USD
Retailer 13$6,449 USD
Retailer 14$6,979 USD
Retailer 2$7,590 USD
Retailer 10$7,625 USD
Retailer 20$8,083 USD
Retailer 16$8,507 USD
Retailer 22$10,322 USD
Retailer 18$11,386 USD
Retailer 7$11,388 USD
Retailer 17$11,423 USD
Retailer 5$12,970 USD
Retailer 15$13,332 USD
Retailer 8$16,616 USD
Michael Trio$18,182 USD
Retailer 6$26,650 USD

31 data points across 23 retailers

30 retailers$6,284 USD to $7,590 USD

Retailer 1
-
$3,523 USD
Price last confirmed 11 days ago
Retailer 2
-
$3,873 USD
View
Price last confirmed 12 days ago
Retailer 3
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$3,873 USD
View
Price last confirmed 27 days ago
Retailer 4
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$3,873 USD
View
Price last confirmed 35 days ago
Retailer 5
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$4,059 USD
View
Price last confirmed 36 days ago
Retailer 6
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$4,239 USD
View
Price last confirmed 12 days ago
Retailer 7
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$4,431 USD
View
Price last confirmed 36 days ago
Retailer 8
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$4,493 USD
View
Price last confirmed 32 days ago
Retailer 9
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$4,493 USD
View
Price last confirmed 25 days ago
Retailer 10
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$4,550 USD
View
Price last confirmed 12 days ago
Retailer 11
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$5,755 USD
View
Price last confirmed 14 days ago
Retailer 12
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$6,197 USD
View
Price last confirmed 25 days ago
Retailer 13
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$6,197 USD
View
Price last confirmed 13 days ago
Retailer 14
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$6,197 USD
View
Price last confirmed 35 days ago
B+
Retailer 15
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$6,284 USD
View
Retailer 16
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$6,449 USD
View
Price last confirmed 12 days ago
Retailer 17
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$6,515 USD
View
Price last confirmed 20 days ago
Retailer 18
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$6,979 USD
View
Price last confirmed 12 days ago
B+
Retailer 19
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$7,590 USD
View
Retailer 20
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$7,590 USD
View
Price last confirmed 12 days ago
Retailer 21
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$7,625 USD
View
Price last confirmed 12 days ago
Retailer 22
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$10,322 USD
View
Price last confirmed 14 days ago
Retailer 23
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$11,386 USD
View
Price last confirmed 15 days ago
Retailer 24
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$11,388 USD
View
Price last confirmed 13 days ago
Retailer 25
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$11,423 USD
View
Price last confirmed 13 days ago
Retailer 26
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$12,970 USD
View
Price last confirmed 12 days ago
Retailer 27
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$13,332 USD
View
Price last confirmed 13 days ago
Retailer 28
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$16,616 USD
View
Price last confirmed 27 days ago
Retailer 29
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$17,661 USD
View
Price last confirmed 15 days ago
Most Expensive
Michael Trio
2677763700 · Oct 23
$18,182 USD
SGD 24,570 SGD
View
Price last confirmed 12 days ago
29 more retailers have this diamond
Prices start from $6,284 USDSave up to $1,306 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.

B+
3.03ct Marquise
$6,284 USD