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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 €3,216 EUR
$3,593 USD
As of October 31, 2026
Save €12,907 EUR (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €16,123 EUR 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 12 retailers as of October 31, 2026, with prices from €3,216 to €16,123, a €12,907 spread on the same certified stone. Taylor and Hart lists it at €16,123. 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
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: Oct 31
Current: €5,861 EUR|Low: €3,216 EUR|High: €21,135 EUR|Avg: €9,057 EUR|-14.6%
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
October 31, 2026
Retailer 10€3,216 EUR
Retailer 5€3,617 EUR
Retailer 11€3,861 EUR
Retailer 2€5,729 EUR
Retailer 1€5,861 EUR
Retailer 13€6,959 EUR
Retailer 8€7,423 EUR
Retailer 3€7,732 EUR
Retailer 6€8,199 EUR
Retailer 9€9,414 EUR
Retailer 7€10,500 EUR
Retailer 12€12,170 EUR
Taylor and Hart€16,123 EUR
Retailer 4€21,135 EUR

39 data points across 14 retailers

12 retailers€3,216 EUR to €16,123 EUR

A
Cheapest Retailer
-
€3,216 EUR
$3,593 USD
A
Retailer 2
-
€3,861 EUR
$4,314 USD
View
B+
Retailer 3
-
€5,729 EUR
HK$50,000 HKD
View
B+
Retailer 4
-
€5,861 EUR
£5,156 GBP
View
B+
Retailer 5
-
€6,959 EUR
$7,775 USD
View
B+
Retailer 6
-
€7,423 EUR
View
B+
Retailer 7
-
€7,732 EUR
$8,638 USD
View
B+
Retailer 8
-
€8,199 EUR
$9,160 USD
View
B+
Retailer 9
-
€9,414 EUR
£8,281 GBP
View
B+
Retailer 10
-
€10,500 EUR
ZAR 189,502 ZAR
View
Retailer 11
-
€12,170 EUR
$13,596 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Taylor and Hart
PDT5PTM · Oct 31
€16,123 EUR
$18,013 USD
View
11 more retailers have this diamond
Prices start from €3,216 EURSave up to €12,907 EUR

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
€3,216 EUR