Marquise|Lab Grown|IGI

0.51ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG818661833

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818661833

Diamond specifications and retailer prices

From €132 EUR
$148 USD
As of October 30, 2026
Save €787 EUR (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €920 EUR 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818661833 or 818661833. Listed at 20 retailers as of October 30, 2026, with prices from €132 to €920, a €787 spread on the same certified stone. Reve Diamonds lists it at €920. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661833
Dimensions8.26 × 4.25 × 2.56 mm
L/W Ratio1.94
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
8.26 mm4.25 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661833
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €284 EUR|Low: €127 EUR|High: €776 EUR|Avg: €341 EUR|+4.6%
Retailer 1
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Retailer 18
October 31, 2026
Retailer 13€132 EUR
Retailer 9€148 EUR
Retailer 2€154 EUR
Retailer 15€164 EUR
Retailer 18€164 EUR
Retailer 10€233 EUR
Retailer 1€284 EUR
Retailer 17€289 EUR
Retailer 12€297 EUR
Retailer 5€305 EUR
Retailer 8€329 EUR
Retailer 4€398 EUR
Retailer 14€418 EUR
Retailer 7€432 EUR
Retailer 6€483 EUR
Retailer 16€528 EUR
Retailer 3€558 EUR
Retailer 11€772 EUR

36 data points across 18 retailers

20 retailers€132 EUR to €920 EUR

A
Cheapest Retailer
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€132 EUR
$148 USD
A
Retailer 2
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€148 EUR
$165 USD
View
Final sale: no returns
A
Retailer 3
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€154 EUR
$172 USD
View
A
Retailer 4
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€164 EUR
$183 USD
View
A
Retailer 5
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€164 EUR
$183 USD
View
A
Retailer 6
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€233 EUR
$260 USD
View
A
Retailer 7
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€284 EUR
£250 GBP
View
A
Retailer 8
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€289 EUR
View
A
Retailer 9
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€297 EUR
ZAR 5,355 ZAR
View
A
Retailer 10
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€305 EUR
$341 USD
View
Retailer 11
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€329 EUR
$368 USD
View
Price last confirmed 8 days ago
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Retailer 12
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€398 EUR
$445 USD
View
B+
Retailer 13
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€418 EUR
A$718 AUD
View
B+
Retailer 14
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€432 EUR
$483 USD
View
B+
Retailer 15
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€483 EUR
$540 USD
View
B+
Retailer 16
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€528 EUR
$590 USD
View
B+
Retailer 17
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€558 EUR
$623 USD
View
B+
Retailer 18
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€577 EUR
$645 USD
View
B+
Retailer 19
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€772 EUR
£679 GBP
View
Most Expensive
B
Reve Diamonds
AFF4121F0 · Oct 30
€920 EUR
$1,027 USD
View
19 more retailers have this diamond
Prices start from €132 EURSave up to €787 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
€132 EUR