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Cushion|Lab Grown|IGI

1.50ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG818683531

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818683531

Diamond specifications and retailer prices

From $1,239 AUD
HK$6,800 HKD
As of October 30, 2026
Save $3,756 AUD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,995 AUD at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818683531 or 818683531. Listed at 11 retailers as of October 30, 2026, with prices from $1,239 to $4,995, a $3,756 spread on the same certified stone. With Clarity lists it at $4,995. 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

1.50
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683531
Dimensions7.72 × 6.13 × 3.94 mm
L/W Ratio1.26
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
7.72 mm6.13 mm1.50 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683531
Side View
Table 62.0%Crown 37.8°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,826 AUD|Low: $1,239 AUD|High: $6,661 AUD|Avg: $3,068 AUD|-11.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 30, 2026
Retailer 6$1,239 AUD
Retailer 10$1,512 AUD
Retailer 9$1,580 AUD
Retailer 4$1,649 AUD
Retailer 3$1,675 AUD
Retailer 8$2,537 AUD
Retailer 7$3,460 AUD
Retailer 2$3,744 AUD
Retailer 5$4,672 AUD
Retailer 1$4,826 AUD
With Clarity$4,995 AUD

32 data points across 11 retailers

11 retailers$1,239 AUD to $4,995 AUD

A
Cheapest Retailer
-
$1,239 AUD
HK$6,800 HKD
A
Retailer 2
-
$1,512 AUD
$1,062 USD
View
A
Retailer 3
-
$1,580 AUD
$1,110 USD
View
A
Retailer 4
-
$1,649 AUD
€1,103 EUR
View
A
Retailer 5
-
$1,675 AUD
£927 GBP
View
B
Retailer 6
-
$2,537 AUD
$1,782 USD
View
B
Retailer 7
-
$3,460 AUD
$2,431 USD
View
Retailer 8
-
$3,744 AUD
$2,630 USD
View
Price last confirmed 32 days ago
B
Retailer 9
-
$4,672 AUD
£2,584 GBP
View
B
Retailer 10
-
$4,826 AUD
$3,390 USD
View
Most Expensive
B
With Clarity
818683531 · Oct 30
$4,995 AUD
$3,509 USD
View
10 more retailers have this diamond
Prices start from $1,239 AUDSave up to $3,756 AUD

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
1.50ct Cushion
$1,239 AUD