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Cushion|Lab Grown|IGI

0.73ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG559281522

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG559281522

Diamond specifications and retailer prices

From $435 NZD
$245 USD
As of October 28, 2026
Save $2,080 NZD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,515 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 0.73ct lab-grown cushion diamond

This 0.73ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG559281522 or 559281522. Listed at 7 retailers as of October 25, 2026, with prices from $435 to $2,515, a $2,080 spread on the same certified stone. MOH London lists it at $2,515. 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

0.73
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281522
Dimensions5.70 × 4.75 × 3.23 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
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
5.70 mm4.75 mm0.73 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281522
Side View
Table 58.0%Crown 32.3°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,515 NZD|Low: $302 NZD|High: $2,542 NZD|Avg: $825 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5$302 NZD
Retailer 4$435 NZD
Retailer 2$511 NZD
Retailer 7$562 NZD
Retailer 3$655 NZD
Retailer 6$850 NZD
MOH London$2,515 NZD

26 data points across 7 retailers

7 retailers$435 NZD to $2,515 NZD

Retailer 1
-
$302 NZD
$170 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$435 NZD
$245 USD
View
B+
Retailer 3
-
$511 NZD
£227 GBP
View
B+
Retailer 4
-
$562 NZD
$317 USD
View
B+
Retailer 5
-
$655 NZD
£291 GBP
View
B
Retailer 6
-
$850 NZD
$479 USD
View
Most Expensive
B
MOH London
LG559281522 · Oct 25
$2,515 NZD
£1,116 GBP
View
6 more retailers have this diamond
Prices start from $435 NZDSave up to $2,080 NZD

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.

B+
0.73ct Cushion
$435 NZD