Marquise|Lab Grown|IGI

0.50ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818663121

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818663121

Diamond specifications and retailer prices

From €239 EUR
$267 USD
As of October 31, 2026
Save €942 EUR (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,181 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663121 or 818663121. Listed at 19 retailers as of October 30, 2026, with prices from €239 to €1,181, a €942 spread on the same certified stone. Reve Diamonds lists it at €1,181. 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

0.50
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663121
Dimensions8.16 × 4.10 × 2.56 mm
L/W Ratio1.99
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
8.16 mm4.10 mm0.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663121
Side View
Table 60.0%Crown 36.1°Girdle: MediumPavilion 40.1°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 31
Current: €499 EUR|Low: €170 EUR|High: €1,241 EUR|Avg: €584 EUR|-5.9%
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
October 31, 2026
Retailer 4€239 EUR
Retailer 2€266 EUR
Retailer 12€323 EUR
Retailer 13€374 EUR
Retailer 11€416 EUR
Retailer 6€439 EUR
Retailer 9€441 EUR
Retailer 8€480 EUR
Retailer 1€499 EUR
Retailer 3€580 EUR
Retailer 10€857 EUR
Retailer 5€901 EUR
Retailer 7€1,071 EUR
Reve Diamonds€1,181 EUR

35 data points across 14 retailers

19 retailers€239 EUR to €1,181 EUR

Retailer 1
-
€214 EUR
$239 USD
Price last confirmed 23 days ago
A
Retailer 2
-
€239 EUR
$267 USD
View
Final sale: no returns
Retailer 3
-
€249 EUR
$278 USD
View
Price last confirmed 32 days ago
Retailer 4
-
€262 EUR
$293 USD
View
Price last confirmed 36 days ago
Retailer 5
-
€266 EUR
$297 USD
View
Price last confirmed 19 days ago
Retailer 6
-
€266 EUR
$297 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
€323 EUR
$361 USD
View
A
Retailer 8
-
€374 EUR
$418 USD
View
A
Retailer 9
-
€416 EUR
$465 USD
View
B+
Retailer 10
-
€439 EUR
$490 USD
View
B+
Retailer 11
-
€441 EUR
View
B+
Retailer 12
-
€480 EUR
ZAR 8,672 ZAR
View
B+
Retailer 13
-
€499 EUR
£439 GBP
View
B+
Retailer 14
-
€580 EUR
$648 USD
View
Retailer 15
-
€854 EUR
$954 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
€857 EUR
$957 USD
View
B
Retailer 17
-
€901 EUR
$1,006 USD
View
B
Retailer 18
-
€1,071 EUR
£942 GBP
View
Most Expensive
B
Reve Diamonds
C1C484CBD · Oct 30
€1,181 EUR
$1,319 USD
View
18 more retailers have this diamond
Prices start from €239 EURSave up to €942 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
0.50ct Marquise
€239 EUR