Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG813651571

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813651571

Diamond specifications and retailer prices

From $2,121 USD
As of November 4, 2026
Save $17,034 USD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $19,155 USD at Mervis Diamond Importers · As of November 4, 2026
View at Mervis Diamond Importers

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion 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 LG813651571 or 813651571. Listed at 19 retailers as of November 4, 2026, with prices from $2,121 to $19,155, a $17,034 spread on the same certified stone. Mervis Diamond Importers lists it at $19,155. 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

3.10
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813651571
Dimensions9.61 × 7.76 × 5.29 mm
L/W Ratio1.24
Girdle conditionFaceted
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
9.61 mm7.76 mm3.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813651571
Side View
Table 62.0%Crown 36.2°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 68.2%

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: Nov 4
Current: $19,155 USD|Low: $2,121 USD|High: $20,180 USD|Avg: $6,586 USD|+50.6%
Mervis Diamond Importers
Retailer 2
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 17
November 5, 2026
Retailer 5$2,121 USD
Retailer 13$2,320 USD
Retailer 4$2,418 USD
Retailer 15$2,485 USD
Retailer 16$3,081 USD
Retailer 10$3,305 USD
Retailer 9$3,403 USD
Retailer 11$3,650 USD
Retailer 6$4,602 USD
Retailer 12$5,650 USD
Retailer 17$6,523 USD
Retailer 14$6,530 USD
Retailer 2$6,564 USD
Retailer 7$7,642 USD
Retailer 8$8,484 USD
Retailer 3$13,040 USD
Mervis Diamond Importers$19,155 USD

38 data points across 17 retailers

19 retailers$2,121 USD to $19,155 USD

A
Cheapest Retailer
-
$2,121 USD
Final sale: no returns
A
Retailer 2
-
$2,320 USD
View
A
Retailer 3
-
$2,418 USD
View
A
Retailer 4
-
$2,485 USD
View
A
Retailer 5
-
$3,081 USD
View
A
Retailer 6
-
$3,305 USD
View
Retailer 7
-
$3,403 USD
View
Price last confirmed 24 days ago
A
Retailer 8
-
$3,650 USD
View
B+
Retailer 9
-
$4,602 USD
View
B+
Retailer 10
-
$5,650 USD
View
B+
Retailer 11
-
$6,523 USD
View
Retailer 12
-
$6,530 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
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$6,564 USD
View
B+
Retailer 14
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$6,616 USD
View
B
Retailer 15
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$7,642 USD
View
B
Retailer 16
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$8,484 USD
View
B
Retailer 17
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$13,040 USD
View
B
Retailer 18
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$14,856 USD
View
Most Expensive
B
Mervis Diamond Importers
1974991150 · Nov 4
$19,155 USD
View
18 more retailers have this diamond
Prices start from $2,121 USDSave up to $17,034 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
3.10ct Cushion
$2,121 USD