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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 $267 USD
As of October 29, 2026
Save $1,052 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,319 USD at Reve Diamonds · As of October 28, 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 28, 2026, with prices from $267 to $1,319, a $1,052 spread on the same certified stone. Reve Diamonds lists it at $1,319. 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
Color
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 29
Current: $1,196 USD|Low: $190 USD|High: $1,387 USD|Avg: $674 USD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 29, 2026
Retailer 3$267 USD
Retailer 10$361 USD
Retailer 12$418 USD
Retailer 9$465 USD
Retailer 7$492 USD
Retailer 6$537 USD
Retailer 5$559 USD
Retailer 11$630 USD
Retailer 2$648 USD
Retailer 8$957 USD
Retailer 4$1,006 USD
Retailer 1$1,196 USD
Reve Diamonds$1,319 USD

33 data points across 13 retailers

19 retailers$267 USD to $1,319 USD

A
Retailer 1
-
$239 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$267 USD
View
Final sale: no returns
A
Retailer 3
-
$278 USD
View
Price last confirmed 30 days ago
A
Retailer 4
-
$293 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$297 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$297 USD
View
Price last confirmed 26 days ago
A
Retailer 7
-
$361 USD
View
A
Retailer 8
-
$418 USD
View
A
Retailer 9
-
$465 USD
View
B+
Retailer 10
-
$492 USD
€469 EUR
View
B+
Retailer 11
-
$537 USD
ZAR 8,672 ZAR
View
B+
Retailer 12
-
$559 USD
£440 GBP
View
B+
Retailer 13
-
$630 USD
View
B+
Retailer 14
-
$648 USD
View
B
Retailer 15
-
$954 USD
View
Price last confirmed 28 days ago
B
Retailer 16
-
$957 USD
View
B
Retailer 17
-
$1,006 USD
View
B
Retailer 18
-
$1,196 USD
£942 GBP
View
Most Expensive
B
Reve Diamonds
C1C484CBD · Oct 28
$1,319 USD
View
18 more retailers have this diamond
Prices start from $267 USDSave up to $1,052 USD

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
$267 USD