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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 $18,858 CAD
$13,500 USD
As of October 30, 2026
3 retailers carry this diamond
Most expensive: $18,858 CAD 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $18,858 CAD|Low: $5,644 CAD|High: $37,942 CAD|Avg: $15,938 CAD|-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$5,644 CAD
Retailer 9$5,906 CAD
Retailer 5$6,811 CAD
Retailer 6$10,142 CAD
Retailer 8$10,429 CAD
Retailer 2$10,625 CAD
Retailer 12$10,710 CAD
Retailer 7$13,474 CAD
Retailer 10$16,000 CAD
Brilliant Earth$18,858 CAD
Retailer 4$27,838 CAD
Retailer 3$30,040 CAD

44 data points across 12 retailers

3 retailers

Retailer 1
-
$10,142 CAD
$7,260 USD
Price last confirmed 74 days ago
Retailer 2
-
$10,710 CAD
HK$59,900 HKD
View
Price last confirmed 59 days ago
Most Expensive
B
Brilliant Earth
19647619Y · Oct 30
$18,858 CAD
$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
$18,858 CAD