Marquise|Lab Grown|IGI

0.51ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG809664758

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809664758

Diamond specifications and retailer prices

From €233 EUR
$260 USD
As of October 30, 2026
Save €544 EUR (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €776 EUR at MOH London · As of October 29, 2026
View at MOH London

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 LG809664758 or 809664758. Listed at 9 retailers as of October 29, 2026, with prices from €233 to €776, a €544 spread on the same certified stone. MOH London lists it at €776. 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 angle36.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809664758
Dimensions8.30 × 4.12 × 2.57 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
8.30 mm4.12 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809664758
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 39.3°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 30
Current: €776 EUR|Low: €224 EUR|High: €782 EUR|Avg: €431 EUR|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4€233 EUR
Retailer 2€287 EUR
Retailer 3€301 EUR
Retailer 8€305 EUR
Retailer 7€366 EUR
Retailer 6€483 EUR
Retailer 5€576 EUR
Retailer 9€581 EUR
MOH London€776 EUR

41 data points across 9 retailers

9 retailers€233 EUR to €776 EUR

A
Cheapest Retailer
-
€233 EUR
$260 USD
A
Retailer 2
-
€287 EUR
£252 GBP
View
A
Retailer 3
-
€301 EUR
View
A
Retailer 4
-
€305 EUR
$341 USD
View
A
Retailer 5
-
€366 EUR
$409 USD
View
B+
Retailer 6
-
€483 EUR
$540 USD
View
B+
Retailer 7
-
€576 EUR
A$990 AUD
View
B+
Retailer 8
-
€581 EUR
$649 USD
View
Most Expensive
B
MOH London
LG809664758 · Oct 29
€776 EUR
£683 GBP
View
8 more retailers have this diamond
Prices start from €233 EURSave up to €544 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
€233 EUR