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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 $1,544 NZD
HK$6,800 HKD
As of October 30, 2026
Save $4,682 NZD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,226 NZD at With Clarity · As of October 31, 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 $1,544 to $6,226, a $4,682 spread on the same certified stone. With Clarity lists it at $6,226. 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: $6,015 NZD|Low: $1,544 NZD|High: $8,302 NZD|Avg: $3,824 NZD|-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$1,544 NZD
Retailer 10$1,884 NZD
Retailer 9$1,969 NZD
Retailer 4$2,055 NZD
Retailer 3$2,088 NZD
Retailer 8$3,162 NZD
Retailer 7$4,313 NZD
Retailer 2$4,666 NZD
Retailer 5$5,823 NZD
Retailer 1$6,015 NZD
With Clarity$6,226 NZD

32 data points across 11 retailers

11 retailers$1,544 NZD to $6,226 NZD

A
Cheapest Retailer
-
$1,544 NZD
HK$6,800 HKD
A
Retailer 2
-
$1,884 NZD
$1,062 USD
View
A
Retailer 3
-
$1,969 NZD
$1,110 USD
View
A
Retailer 4
-
$2,055 NZD
€1,103 EUR
View
A
Retailer 5
-
$2,088 NZD
£927 GBP
View
B
Retailer 6
-
$3,162 NZD
$1,782 USD
View
B
Retailer 7
-
$4,313 NZD
$2,431 USD
View
Retailer 8
-
$4,666 NZD
$2,630 USD
View
Price last confirmed 33 days ago
B
Retailer 9
-
$5,823 NZD
£2,584 GBP
View
B
Retailer 10
-
$6,015 NZD
$3,390 USD
View
Most Expensive
B
With Clarity
818683531 · Oct 31
$6,226 NZD
$3,509 USD
View
10 more retailers have this diamond
Prices start from $1,544 NZDSave up to $4,682 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.

A
1.50ct Cushion
$1,544 NZD