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Marquise|Lab Grown|IGI

3.18ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780665993

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780665993

Diamond specifications and retailer prices

From €3,242 EUR
$3,622 USD
As of October 30, 2026
Save €19,064 EUR (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €22,306 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.18ct lab-grown marquise diamond

This 3.18ct 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 LG780665993 or 780665993. Listed at 15 retailers as of October 30, 2026, with prices from €3,242 to €22,306, a €19,064 spread on the same certified stone. Do Amore Diamonds lists it at €22,306. 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

3.18
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665993
Dimensions14.68 × 7.69 × 4.79 mm
L/W Ratio1.91
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
14.68 mm7.69 mm3.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665993
Side View
Table 61.0%Crown 34.6°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €22,306 EUR|Low: €3,242 EUR|High: €25,689 EUR|Avg: €7,592 EUR|-13.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 10€3,242 EUR
Retailer 11€3,402 EUR
Retailer 8€3,543 EUR
Retailer 5€3,561 EUR
Retailer 13€3,898 EUR
Retailer 6€4,388 EUR
Retailer 2€5,086 EUR
Retailer 15€5,188 EUR
Retailer 3€5,885 EUR
Retailer 7€6,775 EUR
Retailer 12€7,120 EUR
Retailer 9€8,450 EUR
Retailer 4€8,988 EUR
Retailer 14€10,310 EUR
Do Amore Diamonds€22,306 EUR

34 data points across 15 retailers

15 retailers€3,242 EUR to €22,306 EUR

A+
Cheapest Retailer
-
€3,242 EUR
$3,622 USD
A
Retailer 2
-
€3,402 EUR
$3,801 USD
View
A
Retailer 3
-
€3,543 EUR
$3,958 USD
View
A
Retailer 4
-
€3,561 EUR
$3,978 USD
View
A
Retailer 5
-
€3,898 EUR
$4,355 USD
View
A
Retailer 6
-
€4,388 EUR
$4,902 USD
View
Final sale: no returns
A
Retailer 7
-
€5,086 EUR
$5,682 USD
View
A
Retailer 8
-
€5,188 EUR
$5,796 USD
View
B+
Retailer 9
-
€5,885 EUR
$6,575 USD
View
Retailer 10
-
€6,775 EUR
$7,570 USD
View
Price last confirmed 49 days ago
B+
Retailer 11
-
€7,120 EUR
View
B+
Retailer 12
-
€8,450 EUR
$9,440 USD
View
B+
Retailer 13
-
€8,988 EUR
£7,907 GBP
View
B+
Retailer 14
-
€10,310 EUR
$11,518 USD
View
Most Expensive
B
Do Amore Diamonds
27-8B9A3C576 · Oct 31
€22,306 EUR
$24,920 USD
View
14 more retailers have this diamond
Prices start from €3,242 EURSave up to €19,064 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+
3.18ct Marquise
€3,242 EUR