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Cushion|Lab Grown|IGI

1.52ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG516259347

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG516259347

Diamond specifications and retailer prices

From $274 USD
As of November 7, 2026
Save $941 USD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,340 USD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.52ct lab-grown cushion diamond

This 1.52ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG516259347 or 516259347. Listed at 8 retailers as of November 7, 2026, with a 343% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.52
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG516259347
Dimensions6.66 × 6.64 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.66 mm6.64 mm1.52 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG516259347
Side View
Table 62.0%Crown 35.3°Girdle: MED-THKPavilion 37.9°Culet: NoneDepth 65.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 7
Current: $1,089 USD|Low: $274 USD|High: $1,340 USD|Avg: $769 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Reve Diamonds
November 7, 2026
Retailer 6$274 USD
Retailer 5$410 USD
Retailer 9$505 USD
Retailer 8$514 USD
Retailer 3$573 USD
Retailer 7$1,032 USD
Retailer 4$1,045 USD
Retailer 1$1,089 USD
Retailer 2$1,215 USD
Reve Diamonds$1,340 USD

25 data points across 10 retailers

8 retailers$274 USD to $1,215 USD

A
Cheapest Retailer
-
$274 USD
Final sale: no returns
Retailer 2
-
$410 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$573 USD
View
Retailer 4
-
$1,032 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$1,045 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$1,089 USD
View
B
Retailer 7
-
$1,215 USD
View
Most Expensive
Reve Diamonds
EEB6FEF56 · Oct 25
$1,340 USD
View
Price last confirmed 13 days ago
7 more retailers have this diamond
Prices start from $274 USDSave up to $941 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
1.52ct Cushion
$274 USD