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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 €208 EUR
$232 USD
As of October 30, 2026
Save €951 EUR (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,159 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 LG816662575 or 816662575. Listed at 17 retailers as of October 30, 2026, with prices from €208 to €1,159, a €951 spread on the same certified stone. Reve Diamonds lists it at €1,159. 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: €443 EUR|Low: €208 EUR|High: €1,166 EUR|Avg: €630 EUR|-2.0%
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
November 1, 2026
Retailer 16€208 EUR
Retailer 2€232 EUR
Retailer 14€241 EUR
Retailer 7€254 EUR
Retailer 11€258 EUR
Retailer 8€349 EUR
Retailer 1€443 EUR
Retailer 10€465 EUR
Retailer 15€514 EUR
Retailer 5€515 EUR
Retailer 4€540 EUR
Retailer 6€828 EUR
Retailer 13€914 EUR
Retailer 3€1,066 EUR
Retailer 12€1,113 EUR
Retailer 9€1,140 EUR
Reve Diamonds€1,159 EUR

27 data points across 17 retailers

17 retailers€208 EUR to €1,159 EUR

A
Cheapest Retailer
-
€208 EUR
$232 USD
A
Retailer 2
-
€232 EUR
$259 USD
View
Final sale: no returns
A
Retailer 3
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€241 EUR
$269 USD
View
A
Retailer 4
-
€254 EUR
$284 USD
View
A
Retailer 5
-
€258 EUR
$288 USD
View
A
Retailer 6
-
€349 EUR
$390 USD
View
B+
Retailer 7
-
€443 EUR
$495 USD
View
B+
Retailer 8
-
€465 EUR
$520 USD
View
B+
Retailer 9
-
€514 EUR
ZAR 9,282 ZAR
View
B+
Retailer 10
-
€515 EUR
$575 USD
View
Retailer 11
-
€540 EUR
View
Price last confirmed 7 days ago
B
Retailer 12
-
€828 EUR
CA$1,285 CAD
View
B
Retailer 13
-
€914 EUR
$1,021 USD
View
B
Retailer 14
-
€1,066 EUR
$1,191 USD
View
B
Retailer 15
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€1,113 EUR
$1,244 USD
View
B
Retailer 16
-
€1,140 EUR
£1,003 GBP
View
Most Expensive
B
Reve Diamonds
45B96CC16 · Nov 1
€1,159 EUR
$1,295 USD
View
16 more retailers have this diamond
Prices start from €208 EURSave up to €951 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
€208 EUR