Marquise|Lab Grown|IGI

3.09ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG768628562

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768628562

Diamond specifications and retailer prices

From $13,500 USD
As of October 30, 2026
3 retailers carry this diamond
Most expensive: $13,500 USD at Brilliant Earth
View at Brilliant Earth

About this 3.09ct lab-grown marquise diamond

This 3.09ct 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 LG768628562 or 768628562. Listed at 3 retailers as of October 30, 2026. 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

3.09
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628562
Dimensions14.80 × 7.57 × 4.79 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
14.80 mm7.57 mm3.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628562
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $13,500 USD|Low: $4,041 USD|High: $27,162 USD|Avg: $11,409 USD|-18.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
August 31, 2026
Retailer 11$4,041 USD
Retailer 9$4,228 USD
Retailer 5$4,876 USD
Retailer 6$7,260 USD
Retailer 8$7,466 USD
Retailer 2$7,606 USD
Retailer 12$7,667 USD
Retailer 7$9,645 USD
Retailer 10$11,454 USD
Brilliant Earth$13,500 USD
Retailer 4$19,928 USD
Retailer 3$21,505 USD

44 data points across 12 retailers

3 retailers

Retailer 1
-
$7,260 USD
Price last confirmed 74 days ago
Retailer 2
-
$7,667 USD
HK$59,900 HKD
View
Price last confirmed 59 days ago
Most Expensive
B
Brilliant Earth
19647619Y · Oct 30
$13,500 USD
View
2 more retailers have this diamond

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
3.09ct Marquise
$13,500 USD