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Marquise|Lab Grown|IGI

3.00ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG780663620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663620

Diamond specifications and retailer prices

From $4,631 CAD
$3,315 USD
As of October 30, 2026
Save $23,789 CAD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $28,420 CAD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 3ct lab-grown marquise diamond

This 3ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663620 or 780663620. Listed at 13 retailers as of October 29, 2026, with prices from $4,631 to $28,420, a $23,789 spread on the same certified stone. Blue Nile lists it at $28,420. 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

3.00
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663620
Dimensions14.54 × 7.49 × 4.73 mm
L/W Ratio1.94
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
14.54 mm7.49 mm3.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663620
Side View
Table 59.0%Crown 36.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $28,420 CAD|Low: $4,631 CAD|High: $31,411 CAD|Avg: $13,110 CAD|-9.5%
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 30, 2026
Retailer 10$4,631 CAD
Retailer 6$4,796 CAD
Retailer 12$5,691 CAD
Retailer 2$8,586 CAD
Retailer 11$10,002 CAD
Retailer 14$10,023 CAD
Retailer 8$10,685 CAD
Retailer 9$14,075 CAD
Retailer 3$14,969 CAD
Retailer 5$15,142 CAD
Retailer 7$15,174 CAD
Retailer 13$17,517 CAD
Retailer 4$23,202 CAD
Blue Nile$28,420 CAD

40 data points across 14 retailers

13 retailers$4,631 CAD to $28,420 CAD

A
Cheapest Retailer
-
$4,631 CAD
$3,315 USD
A
Retailer 2
-
$5,691 CAD
$4,074 USD
View
B+
Retailer 3
-
$8,586 CAD
£4,840 GBP
View
B+
Retailer 4
-
$10,002 CAD
$7,160 USD
View
B+
Retailer 5
-
$10,023 CAD
$7,175 USD
View
B+
Retailer 6
-
$10,685 CAD
€7,285 EUR
View
B+
Retailer 7
-
$14,075 CAD
£7,934 GBP
View
B
Retailer 8
-
$14,969 CAD
$10,716 USD
View
B
Retailer 9
-
$15,142 CAD
$10,840 USD
View
B
Retailer 10
-
$15,174 CAD
ZAR 175,491 ZAR
View
B
Retailer 11
-
$17,517 CAD
$12,540 USD
View
B
Retailer 12
-
$23,202 CAD
$16,610 USD
View
Most Expensive
B
Blue Nile
29977966 · Oct 29
$28,420 CAD
$20,345 USD
View
12 more retailers have this diamond
Prices start from $4,631 CADSave up to $23,789 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
3.00ct Marquise
$4,631 CAD