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 €282 EUR
$315 USD
As of November 1, 2026
Save €1,021 EUR (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,303 EUR at Reve Diamonds · As of November 1, 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 1, 2026, with prices from €282 to €1,303, a €1,021 spread on the same certified stone. Reve Diamonds lists it at €1,303. 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
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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Price History

Last verified: Nov 1
Current: €548 EUR|Low: €282 EUR|High: €1,359 EUR|Avg: €701 EUR|-4.9%
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
November 2, 2026
Retailer 11€282 EUR
Retailer 4€335 EUR
Retailer 10€347 EUR
Retailer 9€440 EUR
Retailer 3€443 EUR
Retailer 2€545 EUR
Retailer 1€548 EUR
Retailer 6€568 EUR
Retailer 12€618 EUR
Retailer 5€752 EUR
Retailer 8€962 EUR
Retailer 13€1,052 EUR
Retailer 7€1,255 EUR
Reve Diamonds€1,303 EUR

37 data points across 14 retailers

19 retailers€282 EUR to €1,303 EUR

Retailer 1
-
€270 EUR
$302 USD
Price last confirmed 24 days ago
A
Retailer 2
-
€282 EUR
$315 USD
View
Final sale: no returns
Retailer 3
-
€313 EUR
$350 USD
View
Price last confirmed 34 days ago
Retailer 4
-
€330 EUR
$369 USD
View
Price last confirmed 38 days ago
Retailer 5
-
€335 EUR
$374 USD
View
Price last confirmed 20 days ago
Retailer 6
-
€335 EUR
$374 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
€347 EUR
$388 USD
View
B+
Retailer 8
-
€440 EUR
$492 USD
View
B+
Retailer 9
-
€443 EUR
$495 USD
View
Retailer 10
-
€545 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
€548 EUR
£482 GBP
View
B+
Retailer 12
-
€568 EUR
ZAR 10,257 ZAR
View
B+
Retailer 13
-
€618 EUR
$690 USD
View
Retailer 14
-
€752 EUR
$840 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
€962 EUR
$1,075 USD
View
B
Retailer 16
-
€1,052 EUR
$1,175 USD
View
Retailer 17
-
€1,077 EUR
$1,203 USD
View
Price last confirmed 32 days ago
B
Retailer 18
-
€1,255 EUR
£1,104 GBP
View
Most Expensive
B
Reve Diamonds
A2873543F · Nov 1
€1,303 EUR
$1,456 USD
View
18 more retailers have this diamond
Prices start from €282 EURSave up to €1,021 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
€282 EUR