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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 $19,331 AUD
$13,500 USD
As of November 3, 2026
3 retailers carry this diamond
Most expensive: $19,331 AUD 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 November 3, 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
Colour
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: Nov 3
Current: $19,331 AUD|Low: $5,785 AUD|High: $38,892 AUD|Avg: $16,337 AUD|-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$5,785 AUD
Retailer 9$6,054 AUD
Retailer 5$6,982 AUD
Retailer 6$10,396 AUD
Retailer 8$10,691 AUD
Retailer 2$10,891 AUD
Retailer 12$10,978 AUD
Retailer 7$13,811 AUD
Retailer 10$16,401 AUD
Brilliant Earth$19,331 AUD
Retailer 4$28,535 AUD
Retailer 3$30,792 AUD

44 data points across 12 retailers

3 retailers

Retailer 1
-
$10,396 AUD
Price last confirmed 79 days ago
Retailer 2
-
$10,978 AUD
View
Price last confirmed 64 days ago
Most Expensive
B
Brilliant Earth
19647619Y · Nov 3
$19,331 AUD
$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
$19,331 AUD