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Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG818662694

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818662694

Diamond specifications and retailer prices

From €255 EUR
As of November 5, 2026
Save €1,042 EUR (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,297 EUR at Reve Diamonds · As of November 4, 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 LG818662694 or 818662694. Listed at 19 retailers as of November 4, 2026, with prices from €255 to €1,297, a €1,042 spread on the same certified stone. Reve Diamonds lists it at €1,297. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662694
Dimensions8.39 × 4.18 × 2.49 mm
L/W Ratio2.01
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
8.39 mm4.18 mm0.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662694
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 39°Culet: NoneDepth 59.6%

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 5
Current: €526 EUR|Low: €255 EUR|High: €1,353 EUR|Avg: €694 EUR|-19.2%
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
November 5, 2026
Retailer 6€255 EUR
Retailer 5€333 EUR
Retailer 2€346 EUR
Retailer 13€438 EUR
Retailer 4€441 EUR
Retailer 1€526 EUR
Retailer 7€534 EUR
Retailer 3€543 EUR
Retailer 11€565 EUR
Retailer 10€694 EUR
Retailer 9€954 EUR
Retailer 12€958 EUR
Retailer 8€1,130 EUR
Reve Diamonds€1,297 EUR

37 data points across 14 retailers

19 retailers€255 EUR to €1,297 EUR

A
Cheapest Retailer
-
€255 EUR
Final sale: no returns
Retailer 2
-
€269 EUR
View
Price last confirmed 28 days ago
Retailer 3
-
€312 EUR
View
Price last confirmed 37 days ago
Retailer 4
-
€329 EUR
View
Price last confirmed 41 days ago
Retailer 5
-
€333 EUR
View
Price last confirmed 24 days ago
Retailer 6
-
€333 EUR
View
Price last confirmed 33 days ago
A
Retailer 7
-
€346 EUR
View
B+
Retailer 8
-
€438 EUR
View
B+
Retailer 9
-
€441 EUR
View
B+
Retailer 10
-
€526 EUR
View
B+
Retailer 11
-
€534 EUR
View
Retailer 12
-
€543 EUR
View
Price last confirmed 11 days ago
B+
Retailer 13
-
€565 EUR
View
B
Retailer 14
-
€694 EUR
View
B
Retailer 15
-
€954 EUR
View
B
Retailer 16
-
€958 EUR
View
Retailer 17
-
€1,072 EUR
View
Price last confirmed 36 days ago
B
Retailer 18
-
€1,130 EUR
View
Most Expensive
B
Reve Diamonds
A2873543F · Nov 4
€1,297 EUR
$1,456 USD
View
18 more retailers have this diamond
Prices start from €255 EURSave up to €1,042 EUR

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
€255 EUR