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Cushion|Lab Grown|IGI

1.53ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG529245188

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG529245188

Diamond specifications and retailer prices

From $283 USD
As of November 6, 2026
Save $972 USD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,255 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct lab-grown cushion diamond

This 1.53ct 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 LG529245188 or 529245188. Listed at 14 retailers as of November 2, 2026, with prices from $283 to $1,255, a $972 spread on the same certified stone. MOH London lists it at $1,255. 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

1.53
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529245188
Dimensions6.65 × 6.60 × 4.50 mm
L/W Ratio1.01
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
6.65 mm6.60 mm1.53 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529245188
Side View
Table 64.0%Crown 35.2°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
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: $1,255 USD|Low: $313 USD|High: $1,270 USD|Avg: $714 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$313 USD
Retailer 3$346 USD
Retailer 10$420 USD
Retailer 6$475 USD
Retailer 2$559 USD
Retailer 4$589 USD
Retailer 5$796 USD
Retailer 9$1,030 USD
Retailer 7$1,150 USD
MOH London$1,255 USD

41 data points across 10 retailers

14 retailers$283 USD to $1,255 USD

A
Cheapest Retailer
-
$283 USD
Final sale: no returns
Retailer 2
-
$313 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$346 USD
View
B+
Retailer 4
-
$420 USD
View
A
Retailer 5
-
$475 USD
View
A
Retailer 6
-
$522 USD
View
A
Retailer 7
-
$559 USD
View
A
Retailer 8
-
$577 USD
View
A
Retailer 9
-
$589 USD
View
B+
Retailer 10
-
$796 USD
View
Retailer 11
-
$1,030 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
$1,058 USD
View
B
Retailer 13
-
$1,150 USD
View
Most Expensive
B
MOH London
LG529245188 · Nov 2
$1,255 USD
£988 GBP
View
13 more retailers have this diamond
Prices start from $283 USDSave up to $972 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
1.53ct Cushion
$283 USD