Cushion|Lab Grown|IGI

1.48ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG846629484

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846629484

Diamond specifications and retailer prices

From $161 USD
As of October 28, 2026
Save $929 USD (85%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,090 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.48ct lab-grown cushion diamond

This 1.48ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846629484 or 846629484. Listed at 3 retailers as of October 26, 2026, with prices from $161 to $1,090, a $929 spread on the same certified stone. Brilliant Earth lists it at $1,090. 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

1.48
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846629484
Dimensions8.21 × 5.92 × 3.94 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.21 mm5.92 mm1.48 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846629484
Side View
Table 61.0%Crown 33.7°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $1,090 USD|Low: $161 USD|High: $1,090 USD|Avg: $608 USD
Brilliant Earth
Retailer 2
Retailer 3
October 27, 2026
Retailer 2$161 USD
Retailer 3$318 USD
Brilliant Earth$1,090 USD

11 data points across 3 retailers

3 retailers$161 USD to $1,090 USD

A
Cheapest Retailer
-
$161 USD
Final sale: no returns
A
Retailer 2
-
$318 USD
£250 GBP
View
Most Expensive
B
Brilliant Earth
22151178A · Oct 26
$1,090 USD
View
2 more retailers have this diamond
Prices start from $161 USDSave up to $929 USD

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
1.48ct Cushion
$161 USD