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Marquise|Lab Grown|IGI

2.78ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG758557808

Certificate IGI LG758557808

Diamond specifications and retailer prices

From $10,440 USD
1 retailer carries this diamond
Only listing: $10,440 USD at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

About this 2.78ct lab-grown marquise diamond

This 2.78ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG758557808 or 758557808. Currently listed at a single retailer. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

2.78
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758557808
Dimensions14.21 × 7.40 × 4.66 mm
L/W Ratio1.92
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
14.21 mm7.40 mm2.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758557808
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Sep 30
Current: $25,009 USD|Low: $4,975 USD|High: $25,562 USD|Avg: $11,262 USD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Shane Co
September 18, 2026
Retailer 8$4,975 USD
Retailer 7$6,116 USD
Retailer 3$6,127 USD
Retailer 4$6,659 USD
Retailer 2$6,782 USD
Retailer 6$7,592 USD
Retailer 9$8,422 USD
Shane Co$10,440 USD
Retailer 5$17,808 USD
Retailer 10$19,399 USD
Retailer 1$25,009 USD

33 data points across 11 retailers

1 retailer

B
Shane Co
26D0VF9 · Sep 30
$10,440 USD
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B
2.78ct Marquise
$10,440 USD