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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 €181 EUR
$203 USD
As of November 1, 2026
Save €830 EUR (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,011 EUR at Reve Diamonds · As of November 1, 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 1, 2026, with prices from €181 to €1,011, a €830 spread on the same certified stone. Reve Diamonds lists it at €1,011. 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
Color
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 1
Current: €358 EUR|Low: €181 EUR|High: €1,011 EUR|Avg: €543 EUR|+3.7%
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 2, 2026
Retailer 2€181 EUR
Retailer 7€228 EUR
Retailer 13€258 EUR
Retailer 3€278 EUR
Retailer 9€332 EUR
Retailer 1€358 EUR
Retailer 15€411 EUR
Retailer 5€412 EUR
Retailer 10€491 EUR
Retailer 6€658 EUR
Retailer 4€693 EUR
Retailer 12€740 EUR
Retailer 11€811 EUR
Retailer 14€828 EUR
Retailer 8€938 EUR
Reve Diamonds€1,011 EUR

26 data points across 16 retailers

15 retailers€181 EUR to €1,011 EUR

A
Cheapest Retailer
-
€181 EUR
$203 USD
Final sale: no returns
A
Retailer 2
-
€228 EUR
HK$2,000 HKD
View
B+
Retailer 3
-
€278 EUR
$312 USD
View
A
Retailer 4
-
€332 EUR
View
A
Retailer 5
-
€358 EUR
£317 GBP
View
A
Retailer 6
-
€411 EUR
$461 USD
View
A
Retailer 7
-
€412 EUR
$462 USD
View
B+
Retailer 8
-
€491 EUR
$551 USD
View
B+
Retailer 9
-
€658 EUR
SGD 998 SGD
View
B+
Retailer 10
-
€693 EUR
$777 USD
View
B+
Retailer 11
-
€740 EUR
$830 USD
View
B+
Retailer 12
-
€811 EUR
$910 USD
View
B
Retailer 13
-
€828 EUR
$929 USD
View
B+
Retailer 14
-
€938 EUR
£828 GBP
View
Most Expensive
B
Reve Diamonds
36585FD7B · Nov 1
€1,011 EUR
$1,134 USD
View
14 more retailers have this diamond
Prices start from €181 EURSave up to €830 EUR

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
€181 EUR