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Cushion|Lab Grown|IGI

1.53ct I SI1 Cushion Lab Grown Diamond

ID • I/SI1 • IGI LG425067812

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG425067812

Diamond specifications and retailer prices

From $860 USD
As of October 30, 2026
Save $4,070 USD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,930 USD at MOH London · As of October 27, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067812 or 425067812. Listed at 6 retailers as of October 27, 2026, with prices from $860 to $4,930, a $4,070 spread on the same certified stone. MOH London lists it at $4,930. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067812
Dimensions7.06 × 6.82 × 4.55 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.06 mm6.82 mm1.53 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067812
Side View
Table 57.0%Crown 36.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,930 USD|Low: $860 USD|High: $4,983 USD|Avg: $2,480 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$860 USD
Retailer 5$1,478 USD
Retailer 4$1,533 USD
Retailer 6$1,705 USD
Retailer 7$2,108 USD
Retailer 3$2,424 USD
Retailer 8$4,388 USD
MOH London$4,930 USD

11 data points across 8 retailers

6 retailers$860 USD to $4,930 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,478 USD
View
Final sale: no returns
Retailer 3
-
$1,533 USD
View
Price last confirmed 18 days ago
B
Retailer 4
-
$1,705 USD
View
B
Retailer 5
-
$2,424 USD
View
Most Expensive
B
MOH London
LG425067812 · Oct 27
$4,930 USD
£3,882 GBP
View
5 more retailers have this diamond
Prices start from $860 USDSave up to $4,070 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
$860 USD