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Cushion|Lab Grown|IGI

0.50ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG571304356

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG571304356

Diamond specifications and retailer prices

From $231 USD
As of October 25, 2026
Save $857 USD (79%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,088 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.5ct lab-grown cushion diamond

This 0.5ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG571304356 or 571304356. Listed at 4 retailers as of October 25, 2026, with prices from $231 to $1,088, a $857 spread on the same certified stone. MOH London lists it at $1,088. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571304356
Dimensions5.14 × 4.25 × 2.65 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.14 mm4.25 mm0.50 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG571304356
Side View
Table 66.0%Crown 32.6°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: $1,088 USD|Low: $231 USD|High: $1,095 USD|Avg: $542 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 4$231 USD
Retailer 6$262 USD
Retailer 3$406 USD
Retailer 2$419 USD
Retailer 5$516 USD
Retailer 7$930 USD
MOH London$1,088 USD

40 data points across 7 retailers

4 retailers$231 USD to $1,088 USD

A
Cheapest Retailer
-
$231 USD
B
Retailer 2
-
$406 USD
View
B
Retailer 3
-
$419 USD
£330 GBP
View
Most Expensive
B
MOH London
LG571304356 · Oct 29
$1,088 USD
£857 GBP
View
3 more retailers have this diamond
Prices start from $231 USDSave up to $857 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 Cushion
$231 USD