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Marquise|Lab Grown|IGI

3.11ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780662177

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662177

Diamond specifications and retailer prices

From $3,547 USD
As of October 30, 2026
Save $20,853 USD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $24,400 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.11ct lab-grown marquise diamond

This 3.11ct 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 LG780662177 or 780662177. Listed at 15 retailers as of October 30, 2026, with prices from $3,547 to $24,400, a $20,853 spread on the same certified stone. Do Amore Diamonds lists it at $24,400. 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

3.11
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662177
Dimensions14.46 × 7.48 × 4.83 mm
L/W Ratio1.93
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
14.46 mm7.48 mm3.11 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662177
Side View
Table 60.0%Crown 36.4°Girdle: Slightly ThickPavilion 40°Culet: NoneDepth 64.6%

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 30
Current: $24,400 USD|Low: $3,547 USD|High: $28,100 USD|Avg: $8,312 USD|-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$3,547 USD
Retailer 11$3,719 USD
Retailer 8$3,878 USD
Retailer 6$3,895 USD
Retailer 13$4,270 USD
Retailer 7$4,800 USD
Retailer 2$5,563 USD
Retailer 3$5,675 USD
Retailer 5$6,439 USD
Retailer 4$7,350 USD
Retailer 12$7,778 USD
Retailer 9$8,570 USD
Retailer 14$9,779 USD
Retailer 15$11,271 USD
Do Amore Diamonds$24,400 USD

34 data points across 15 retailers

15 retailers$3,547 USD to $24,400 USD

A
Cheapest Retailer
-
$3,547 USD
A
Retailer 2
-
$3,719 USD
View
A
Retailer 3
-
$3,878 USD
View
A
Retailer 4
-
$3,895 USD
View
A
Retailer 5
-
$4,270 USD
View
A
Retailer 6
-
$4,800 USD
View
Final sale: no returns
A
Retailer 7
-
$5,563 USD
View
A
Retailer 8
-
$5,675 USD
View
B+
Retailer 9
-
$6,439 USD
View
B+
Retailer 10
-
$7,350 USD
View
B+
Retailer 11
-
$7,778 USD
€7,408 EUR
View
B+
Retailer 12
-
$8,570 USD
View
B+
Retailer 13
-
$9,779 USD
£7,700 GBP
View
B+
Retailer 14
-
$11,271 USD
View
Most Expensive
B
Do Amore Diamonds
27-990F06AC4 · Oct 31
$24,400 USD
View
14 more retailers have this diamond
Prices start from $3,547 USDSave up to $20,853 USD

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
3.11ct Marquise
$3,547 USD