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Cushion|Lab Grown|IGI

1.01ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG665409447

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665409447

Diamond specifications and retailer prices

From $490 USD
As of October 28, 2026
Save $732 USD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,222 USD at Yorxs · As of October 29, 2026
View at Yorxs

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG665409447 or 665409447. Listed at 9 retailers as of October 28, 2026, with prices from $490 to $1,222, a $732 spread on the same certified stone. Yorxs lists it at $1,222. 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

1.01
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409447
Dimensions6.19 × 5.97 × 3.90 mm
L/W Ratio1.04
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
6.19 mm5.97 mm1.01 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665409447
Side View
Table 59.0%Crown 35.7°Girdle: MED-THKPavilion 41.3°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,078 USD|Low: $451 USD|High: $3,026 USD|Avg: $1,119 USD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
October 29, 2026
Retailer 4$490 USD
Retailer 3$691 USD
Retailer 6$693 USD
Retailer 5$888 USD
Retailer 8$990 USD
Retailer 7$1,068 USD
Retailer 1$1,078 USD
Yorxs$1,222 USD
Retailer 2$3,026 USD

43 data points across 9 retailers

9 retailers$490 USD to $1,222 USD

B+
Cheapest Retailer
-
$490 USD
B
Retailer 2
-
$691 USD
View
Final sale: no returns
Retailer 3
-
$693 USD
View
Price last confirmed 13 days ago
B
Retailer 4
-
$888 USD
View
B
Retailer 5
-
$990 USD
View
B
Retailer 6
-
$1,068 USD
View
B
Retailer 7
-
$1,078 USD
£849 GBP
View
Most Expensive
B
Yorxs
611344275 · Oct 29
$1,222 USD
€1,164 EUR
View
7 more retailers have this diamond
Prices start from $490 USDSave up to $732 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.

B+
1.01ct Cushion
$490 USD