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Marquise|Lab Grown|IGI

3.15ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG784646955

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784646955

Diamond specifications and retailer prices

From $3,590 USD
As of October 30, 2026
Save $21,110 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $24,700 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.15ct lab-grown marquise diamond

This 3.15ct 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 LG784646955 or 784646955. Listed at 14 retailers as of October 30, 2026, with prices from $3,590 to $24,700, a $21,110 spread on the same certified stone. Do Amore Diamonds lists it at $24,700. 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

3.15
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784646955
Dimensions14.39 × 7.60 × 4.91 mm
L/W Ratio1.89
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
14.39 mm7.60 mm3.15 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784646955
Side View
Table 61.0%Crown 35.1°Girdle: Slightly ThickPavilion 41.1°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: $24,700 USD|Low: $3,590 USD|High: $28,440 USD|Avg: $8,152 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
October 31, 2026
Retailer 9$3,590 USD
Retailer 10$3,766 USD
Retailer 7$3,924 USD
Retailer 4$3,943 USD
Retailer 12$4,320 USD
Retailer 6$4,858 USD
Retailer 2$5,631 USD
Retailer 14$5,744 USD
Retailer 3$6,517 USD
Retailer 5$7,655 USD
Retailer 11$7,879 USD
Retailer 8$9,350 USD
Retailer 13$9,898 USD
Do Amore Diamonds$24,700 USD

33 data points across 14 retailers

14 retailers$3,590 USD to $24,700 USD

A
Cheapest Retailer
-
$3,590 USD
A
Retailer 2
-
$3,766 USD
View
A
Retailer 3
-
$3,924 USD
View
A
Retailer 4
-
$3,943 USD
View
A
Retailer 5
-
$4,320 USD
View
A
Retailer 6
-
$4,858 USD
View
Final sale: no returns
A
Retailer 7
-
$5,631 USD
View
A
Retailer 8
-
$5,744 USD
View
B+
Retailer 9
-
$6,517 USD
View
Retailer 10
-
$7,655 USD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
$7,879 USD
€7,504 EUR
View
B+
Retailer 12
-
$9,350 USD
View
B+
Retailer 13
-
$9,898 USD
£7,794 GBP
View
Most Expensive
B
Do Amore Diamonds
27-FCE69DD6C · Oct 31
$24,700 USD
View
13 more retailers have this diamond
Prices start from $3,590 USDSave up to $21,110 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
3.15ct Marquise
$3,590 USD