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Cushion|Lab Grown|IGI

1.35ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG614336597

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG614336597

Diamond specifications and retailer prices

From $227 USD
As of November 6, 2026
Save $949 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,176 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.35ct lab-grown cushion diamond

This 1.35ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG614336597 or 614336597. Listed at 11 retailers as of November 5, 2026, with prices from $227 to $1,176, a $949 spread on the same certified stone. MOH London lists it at $1,176. 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

1.35
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614336597
Dimensions6.47 × 6.40 × 4.33 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
6.47 mm6.40 mm1.35 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614336597
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 67.7%

Caratlytics Score

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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: $1,176 USD|Low: $133 USD|High: $1,193 USD|Avg: $527 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$133 USD
Retailer 9$227 USD
Retailer 6$252 USD
Retailer 2$425 USD
Retailer 7$437 USD
Retailer 3$458 USD
Retailer 8$577 USD
Retailer 4$695 USD
Retailer 5$860 USD
MOH London$1,176 USD

44 data points across 10 retailers

11 retailers$227 USD to $1,176 USD

A
Cheapest Retailer
-
$227 USD
Final sale: no returns
Retailer 2
-
$252 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$425 USD
View
A
Retailer 4
-
$437 USD
View
A
Retailer 5
-
$458 USD
View
A
Retailer 6
-
$489 USD
View
B+
Retailer 7
-
$577 USD
View
B+
Retailer 8
-
$695 USD
View
B
Retailer 9
-
$860 USD
View
B
Retailer 10
-
$863 USD
View
Most Expensive
B
MOH London
LG614336597 · Nov 5
$1,176 USD
£926 GBP
View
10 more retailers have this diamond
Prices start from $227 USDSave up to $949 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
1.35ct Cushion
$227 USD