Marquise|Lab Grown|IGI

0.50ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818663121

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818663121

Diamond specifications and retailer prices

From $373 CAD
$267 USD
As of October 31, 2026
Save $1,470 CAD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,843 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663121 or 818663121. Listed at 19 retailers as of October 30, 2026, with prices from $373 to $1,843, a $1,470 spread on the same certified stone. Reve Diamonds lists it at $1,843. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.50
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663121
Dimensions8.16 × 4.10 × 2.56 mm
L/W Ratio1.99
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
8.16 mm4.10 mm0.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663121
Side View
Table 60.0%Crown 36.1°Girdle: MediumPavilion 40.1°Culet: NoneDepth 62.4%

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 31
Current: $779 CAD|Low: $265 CAD|High: $1,937 CAD|Avg: $911 CAD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 31, 2026
Retailer 4$373 CAD
Retailer 2$415 CAD
Retailer 12$504 CAD
Retailer 13$584 CAD
Retailer 11$650 CAD
Retailer 6$684 CAD
Retailer 9$688 CAD
Retailer 8$750 CAD
Retailer 1$779 CAD
Retailer 3$906 CAD
Retailer 10$1,337 CAD
Retailer 5$1,406 CAD
Retailer 7$1,671 CAD
Reve Diamonds$1,843 CAD

35 data points across 14 retailers

19 retailers$373 CAD to $1,843 CAD

Retailer 1
-
$334 CAD
$239 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$373 CAD
$267 USD
View
Final sale: no returns
Retailer 3
-
$388 CAD
$278 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$409 CAD
$293 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$415 CAD
$297 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$415 CAD
$297 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$504 CAD
$361 USD
View
A
Retailer 8
-
$584 CAD
$418 USD
View
A
Retailer 9
-
$650 CAD
$465 USD
View
B+
Retailer 10
-
$684 CAD
$490 USD
View
B+
Retailer 11
-
$688 CAD
€469 EUR
View
B+
Retailer 12
-
$750 CAD
ZAR 8,672 ZAR
View
B+
Retailer 13
-
$779 CAD
£439 GBP
View
B+
Retailer 14
-
$906 CAD
$648 USD
View
Retailer 15
-
$1,333 CAD
$954 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$1,337 CAD
$957 USD
View
B
Retailer 17
-
$1,406 CAD
$1,006 USD
View
B
Retailer 18
-
$1,671 CAD
£942 GBP
View
Most Expensive
B
Reve Diamonds
C1C484CBD · Oct 30
$1,843 CAD
$1,319 USD
View
18 more retailers have this diamond
Prices start from $373 CADSave up to $1,470 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
0.50ct Marquise
$373 CAD