Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG816662575

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816662575

Diamond specifications and retailer prices

From $324 CAD
$232 USD
As of October 30, 2026
Save $1,485 CAD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,809 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816662575 or 816662575. Listed at 17 retailers as of October 30, 2026, with prices from $324 to $1,809, a $1,485 spread on the same certified stone. Reve Diamonds lists it at $1,809. 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

0.51
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816662575
Dimensions7.84 × 4.24 × 2.68 mm
L/W Ratio1.85
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
7.84 mm4.24 mm0.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816662575
Side View
Table 61.0%Crown 36.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.2%

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: Oct 30
Current: $726 CAD|Low: $324 CAD|High: $1,820 CAD|Avg: $985 CAD|-22.4%
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
Retailer 14
Retailer 15
Retailer 16
Reve Diamonds
October 30, 2026
Retailer 15$324 CAD
Retailer 16$362 CAD
Retailer 12$376 CAD
Retailer 7$397 CAD
Retailer 9$402 CAD
Retailer 8$545 CAD
Retailer 13$677 CAD
Retailer 1$726 CAD
Retailer 14$803 CAD
Retailer 5$803 CAD
Retailer 3$843 CAD
Retailer 6$1,293 CAD
Retailer 11$1,426 CAD
Retailer 2$1,663 CAD
Retailer 10$1,738 CAD
Retailer 4$1,786 CAD
Reve Diamonds$1,809 CAD

26 data points across 17 retailers

17 retailers$324 CAD to $1,809 CAD

A
Cheapest Retailer
-
$324 CAD
$232 USD
A
Retailer 2
-
$362 CAD
$259 USD
View
Final sale: no returns
A
Retailer 3
-
$376 CAD
$269 USD
View
A
Retailer 4
-
$397 CAD
$284 USD
View
A
Retailer 5
-
$402 CAD
$288 USD
View
A
Retailer 6
-
$545 CAD
$390 USD
View
B+
Retailer 7
-
$677 CAD
$485 USD
View
B+
Retailer 8
-
$726 CAD
$520 USD
View
B+
Retailer 9
-
$803 CAD
ZAR 9,282 ZAR
View
B+
Retailer 10
-
$803 CAD
$575 USD
View
B+
Retailer 11
-
$843 CAD
€575 EUR
View
B
Retailer 12
-
$1,293 CAD
View
B
Retailer 13
-
$1,426 CAD
$1,021 USD
View
B
Retailer 14
-
$1,663 CAD
$1,191 USD
View
B
Retailer 15
-
$1,738 CAD
$1,244 USD
View
B
Retailer 16
-
$1,786 CAD
£1,007 GBP
View
Most Expensive
B
Reve Diamonds
45B96CC16 · Oct 30
$1,809 CAD
$1,295 USD
View
16 more retailers have this diamond
Prices start from $324 CADSave up to $1,485 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
0.51ct Marquise
$324 CAD