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Cushion|Lab Grown|IGI

1.50ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG541250559

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG541250559

Diamond specifications and retailer prices

From €909 EUR
$1,020 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €909 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG541250559 or 541250559. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541250559
Dimensions7.40 × 6.14 × 4.15 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Top View
7.40 mm6.14 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541250559
Side View
Table 60.0%Crown 36.7°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 67.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: €909 EUR|Low: €132 EUR|High: €1,516 EUR|Avg: €600 EUR|-16.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 26, 2026
Retailer 9€173 EUR
Retailer 3€296 EUR
Retailer 7€359 EUR
Retailer 4€384 EUR
Retailer 6€465 EUR
Retailer 8€520 EUR
Retailer 5€646 EUR
Retailer 10€729 EUR
Brilliant Earth€909 EUR
Retailer 2€1,355 EUR

61 data points across 10 retailers

1 retailer

B
Brilliant Earth
6534688B · Nov 2
€909 EUR
$1,020 USD
View

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
1.50ct Cushion
€909 EUR