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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780663284

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780663284

Diamond specifications and retailer prices

From $3,164 CAD
$2,261 USD
As of October 29, 2026
Save $15,267 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,431 CAD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 LG780663284 or 780663284. Listed at 14 retailers as of October 29, 2026, with prices from $3,164 to $18,431, a $15,267 spread on the same certified stone. Blue Nile lists it at $18,431. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663284
Dimensions9.99 × 7.87 × 5.12 mm
L/W Ratio1.27
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
9.99 mm7.87 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663284
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 65.1%

Caratlytics Score

How it works →
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 29
Current: $18,431 CAD|Low: $3,164 CAD|High: $34,007 CAD|Avg: $9,689 CAD|-45.8%
Blue Nile
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 29, 2026
Retailer 13$3,164 CAD
Retailer 14$3,446 CAD
Retailer 2$3,870 CAD
Retailer 8$4,394 CAD
Retailer 12$4,831 CAD
Retailer 9$4,945 CAD
Retailer 7$7,164 CAD
Retailer 3$7,821 CAD
Retailer 11$8,381 CAD
Retailer 6$9,027 CAD
Retailer 10$9,199 CAD
Retailer 5$11,215 CAD
Retailer 4$13,044 CAD
Blue Nile$18,431 CAD

36 data points across 14 retailers

14 retailers$3,164 CAD to $18,431 CAD

A
Cheapest Retailer
-
$3,164 CAD
$2,261 USD
A
Retailer 2
-
$3,446 CAD
$2,462 USD
View
A
Retailer 3
-
$3,870 CAD
HK$21,600 HKD
View
A
Retailer 4
-
$4,394 CAD
£2,472 GBP
View
A
Retailer 5
-
$4,831 CAD
$3,452 USD
View
A
Retailer 6
-
$4,945 CAD
€3,365 EUR
View
B+
Retailer 7
-
$7,164 CAD
ZAR 82,691 ZAR
View
B+
Retailer 8
-
$7,821 CAD
$5,588 USD
View
B+
Retailer 9
-
$8,381 CAD
$5,988 USD
View
B+
Retailer 10
-
$9,027 CAD
$6,450 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$9,199 CAD
£5,175 GBP
View
B+
Retailer 12
-
$11,215 CAD
$8,013 USD
View
B
Retailer 13
-
$13,044 CAD
$9,320 USD
View
Most Expensive
B
Blue Nile
29313962 · Oct 29
$18,431 CAD
$13,169 USD
View
13 more retailers have this diamond
Prices start from $3,164 CADSave up to $15,267 CAD

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
$3,164 CAD