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Marquise|Lab Grown|IGI

3.09ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780663326

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663326

Diamond specifications and retailer prices

From $4,603 SGD
As of November 3, 2026
Save $18,475 SGD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,078 SGD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 LG780663326 or 780663326. Listed at 13 retailers as of October 31, 2026, with prices from $4,603 to $23,078, a $18,475 spread on the same certified stone. Taylor and Hart lists it at $23,078. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663326
Dimensions15.09 × 7.69 × 4.66 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
15.09 mm7.69 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663326
Side View
Table 62.0%Crown 32.9°Girdle: Slightly ThickPavilion 40.1°Culet: NoneDepth 60.6%

Caratlytics Score

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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: $8,306 SGD|Low: $4,603 SGD|High: $30,252 SGD|Avg: $13,301 SGD|-15.4%
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 4, 2026
Retailer 10$4,603 SGD
Retailer 11$5,527 SGD
Retailer 2$8,200 SGD
Retailer 1$8,306 SGD
Retailer 13$9,961 SGD
Retailer 4$10,384 SGD
Retailer 9$10,624 SGD
Retailer 3$11,067 SGD
Retailer 8$11,736 SGD
Retailer 7$13,401 SGD
Retailer 6$15,075 SGD
Retailer 12$17,419 SGD
Taylor and Hart$23,078 SGD
Retailer 5$30,252 SGD

42 data points across 14 retailers

13 retailers$4,603 SGD to $23,078 SGD

A
Cheapest Retailer
-
$4,603 SGD
A
Retailer 2
-
$5,527 SGD
View
B+
Retailer 3
-
$8,200 SGD
View
B+
Retailer 4
-
$8,306 SGD
View
B+
Retailer 5
-
$9,961 SGD
View
Retailer 6
-
$10,384 SGD
View
Price last confirmed 28 days ago
B+
Retailer 7
-
$10,624 SGD
View
B+
Retailer 8
-
$11,067 SGD
View
B+
Retailer 9
-
$11,736 SGD
View
B+
Retailer 10
-
$13,401 SGD
View
B+
Retailer 11
-
$15,075 SGD
View
B
Retailer 12
-
$17,419 SGD
View
Most Expensive
B
Taylor and Hart
PDT5PTM · Oct 31
$23,078 SGD
$18,013 USD
View
12 more retailers have this diamond
Prices start from $4,603 SGDSave up to $18,475 SGD

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
3.09ct Marquise
$4,603 SGD