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Marquise|Lab Grown|IGI

3.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780662880

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662880

Diamond specifications and retailer prices

From $3,523 USD
As of November 3, 2026
Save $14,139 USD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $17,662 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 LG780662880 or 780662880. Listed at 14 retailers as of October 31, 2026, with prices from $3,523 to $17,662, a $14,139 spread on the same certified stone. Taylor and Hart lists it at $17,662. 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 angle35.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662880
Dimensions15.22 × 7.41 × 4.69 mm
L/W Ratio2.05
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
15.22 mm7.41 mm3.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662880
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 63.3%

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 3
Current: $11,548 USD|Low: $3,523 USD|High: $17,662 USD|Avg: $9,751 USD|-14.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 3, 2026
Retailer 10$3,523 USD
Retailer 12$4,239 USD
Retailer 4$6,284 USD
Retailer 6$6,421 USD
Retailer 11$7,435 USD
Retailer 3$7,625 USD
Retailer 9$8,132 USD
Retailer 8$8,420 USD
Retailer 7$10,267 USD
Retailer 13$11,214 USD
Retailer 5$11,388 USD
Retailer 1$11,548 USD
Retailer 2$13,332 USD
Taylor and Hart$17,662 USD

40 data points across 14 retailers

14 retailers$3,523 USD to $17,662 USD

A
Cheapest Retailer
-
$3,523 USD
A
Retailer 2
-
$4,239 USD
View
B+
Retailer 3
-
$6,284 USD
View
B+
Retailer 4
-
$6,421 USD
View
B+
Retailer 5
-
$7,435 USD
View
B+
Retailer 6
-
$7,625 USD
View
B+
Retailer 7
-
$8,132 USD
View
B+
Retailer 8
-
$8,420 USD
View
B+
Retailer 9
-
$10,267 USD
View
B+
Retailer 10
-
$11,214 USD
View
B
Retailer 11
-
$11,388 USD
View
B+
Retailer 12
-
$11,548 USD
View
B
Retailer 13
-
$13,332 USD
View
Most Expensive
B
Taylor and Hart
DYL4N00 · Oct 31
$17,662 USD
View
13 more retailers have this diamond
Prices start from $3,523 USDSave up to $14,139 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
$3,523 USD