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Cushion|Lab Grown|IGI

1.01ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG805634045

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG805634045

Diamond specifications and retailer prices

From $254 SGD
$199 USD
As of October 25, 2026
Save $1,110 SGD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,365 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805634045 or 805634045. Listed at 15 retailers as of October 25, 2026, with prices from $254 to $1,365, a $1,110 spread on the same certified stone. Reve Diamonds lists it at $1,365. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805634045
Dimensions5.81 × 5.79 × 3.92 mm
L/W Ratio1.00
Girdle conditionFaceted
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
5.81 mm5.79 mm1.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805634045
Side View
Table 60.0%Crown 37.4°Girdle: STK-THKPavilion 39.9°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: Oct 25
Current: $626 SGD|Low: $224 SGD|High: $1,365 SGD|Avg: $596 SGD|-14.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 30, 2026
Retailer 13$254 SGD
Retailer 10$256 SGD
Retailer 6$331 SGD
Retailer 4$378 SGD
Retailer 8$438 SGD
Retailer 7$448 SGD
Retailer 2$459 SGD
Retailer 9$483 SGD
Retailer 1$626 SGD
Retailer 3$660 SGD
Retailer 12$674 SGD
Retailer 5$888 SGD
Retailer 11$1,192 SGD
Reve Diamonds$1,365 SGD

34 data points across 14 retailers

15 retailers$254 SGD to $1,365 SGD

A
Cheapest Retailer
-
$254 SGD
$199 USD
A
Retailer 2
-
$256 SGD
$200 USD
View
Final sale: no returns
A
Retailer 3
-
$331 SGD
£204 GBP
View
A
Retailer 4
-
$378 SGD
$296 USD
View
A
Retailer 5
-
$438 SGD
€326 EUR
View
A
Retailer 6
-
$448 SGD
£276 GBP
View
A
Retailer 7
-
$459 SGD
$359 USD
View
A
Retailer 8
-
$483 SGD
£298 GBP
View
B+
Retailer 9
-
$626 SGD
$490 USD
View
B+
Retailer 10
-
$660 SGD
$516 USD
View
Retailer 11
-
$669 SGD
$524 USD
View
Price last confirmed 109 days ago
B
Retailer 12
-
$674 SGD
$527 USD
View
B
Retailer 13
-
$888 SGD
$695 USD
View
B
Retailer 14
-
$1,192 SGD
£734 GBP
View
Most Expensive
B
Reve Diamonds
C4CC612A1 · Oct 30
$1,365 SGD
$1,067 USD
View
14 more retailers have this diamond
Prices start from $254 SGDSave up to $1,110 SGD

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
1.01ct Cushion
$254 SGD