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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 $341 SGD
$267 USD
As of October 31, 2026
Save $1,345 SGD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,687 SGD 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 $341 to $1,687, a $1,345 spread on the same certified stone. Reve Diamonds lists it at $1,687. 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: $712 SGD|Low: $243 SGD|High: $1,773 SGD|Avg: $834 SGD|-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$341 SGD
Retailer 2$380 SGD
Retailer 12$462 SGD
Retailer 13$534 SGD
Retailer 11$594 SGD
Retailer 6$626 SGD
Retailer 9$630 SGD
Retailer 8$686 SGD
Retailer 1$712 SGD
Retailer 3$829 SGD
Retailer 10$1,223 SGD
Retailer 5$1,286 SGD
Retailer 7$1,529 SGD
Reve Diamonds$1,687 SGD

35 data points across 14 retailers

19 retailers$341 SGD to $1,687 SGD

Retailer 1
-
$306 SGD
$239 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$341 SGD
$267 USD
View
Final sale: no returns
Retailer 3
-
$355 SGD
$278 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$375 SGD
$293 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$380 SGD
$297 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$380 SGD
$297 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$462 SGD
$361 USD
View
A
Retailer 8
-
$534 SGD
$418 USD
View
A
Retailer 9
-
$594 SGD
$465 USD
View
B+
Retailer 10
-
$626 SGD
$490 USD
View
B+
Retailer 11
-
$630 SGD
€469 EUR
View
B+
Retailer 12
-
$686 SGD
ZAR 8,672 ZAR
View
B+
Retailer 13
-
$712 SGD
£439 GBP
View
B+
Retailer 14
-
$829 SGD
$648 USD
View
Retailer 15
-
$1,220 SGD
$954 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$1,223 SGD
$957 USD
View
B
Retailer 17
-
$1,286 SGD
$1,006 USD
View
B
Retailer 18
-
$1,529 SGD
£942 GBP
View
Most Expensive
B
Reve Diamonds
C1C484CBD · Oct 30
$1,687 SGD
$1,319 USD
View
18 more retailers have this diamond
Prices start from $341 SGDSave up to $1,345 SGD

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
$341 SGD