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Cushion|Lab Grown|IGI

1.50ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG657466746

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG657466746

Diamond specifications and retailer prices

From $366 NZD
As of November 6, 2026
Save $1,679 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,045 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG657466746 or 657466746. Listed at 15 retailers as of November 6, 2026, with prices from $366 to $2,045, a $1,679 spread on the same certified stone. Reve Diamonds lists it at $2,045. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657466746
Dimensions8.08 × 5.85 × 3.90 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm5.85 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657466746
Side View
Table 65.0%Crown 35.5°Girdle: MED-VTKPavilion 36.4°Culet: NoneDepth 66.7%

Caratlytics Score

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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: Nov 6
Current: $723 NZD|Low: $366 NZD|High: $2,045 NZD|Avg: $1,097 NZD|+3.6%
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
Retailer 14
Retailer 15
Reve Diamonds
November 7, 2026
Retailer 2$366 NZD
Retailer 7$462 NZD
Retailer 13$521 NZD
Retailer 3$563 NZD
Retailer 8$667 NZD
Retailer 1$723 NZD
Retailer 15$830 NZD
Retailer 5$833 NZD
Retailer 11$994 NZD
Retailer 6$1,331 NZD
Retailer 10$1,371 NZD
Retailer 4$1,400 NZD
Retailer 12$1,642 NZD
Retailer 14$1,676 NZD
Retailer 9$1,889 NZD
Reve Diamonds$2,045 NZD

31 data points across 16 retailers

15 retailers$366 NZD to $2,045 NZD

A
Cheapest Retailer
-
$366 NZD
Final sale: no returns
A
Retailer 2
-
$462 NZD
View
B+
Retailer 3
-
$563 NZD
View
A
Retailer 4
-
$667 NZD
View
A
Retailer 5
-
$723 NZD
View
A
Retailer 6
-
$830 NZD
View
A
Retailer 7
-
$833 NZD
View
B+
Retailer 8
-
$994 NZD
View
B+
Retailer 9
-
$1,331 NZD
View
B+
Retailer 10
-
$1,371 NZD
View
B+
Retailer 11
-
$1,400 NZD
View
B+
Retailer 12
-
$1,642 NZD
View
B
Retailer 13
-
$1,676 NZD
View
B
Retailer 14
-
$1,889 NZD
View
Most Expensive
B
Reve Diamonds
36585FD7B · Nov 6
$2,045 NZD
$1,134 USD
View
14 more retailers have this diamond
Prices start from $366 NZDSave up to $1,679 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
$366 NZD