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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 €178 EUR
$199 USD
As of October 25, 2026
Save €777 EUR (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €955 EUR 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 €178 to €955, a €777 spread on the same certified stone. Reve Diamonds lists it at €955. 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: €439 EUR|Low: €157 EUR|High: €955 EUR|Avg: €417 EUR|-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€178 EUR
Retailer 10€179 EUR
Retailer 6€232 EUR
Retailer 4€265 EUR
Retailer 8€306 EUR
Retailer 7€314 EUR
Retailer 2€321 EUR
Retailer 9€338 EUR
Retailer 1€439 EUR
Retailer 3€462 EUR
Retailer 12€472 EUR
Retailer 5€622 EUR
Retailer 11€834 EUR
Reve Diamonds€955 EUR

34 data points across 14 retailers

15 retailers€178 EUR to €955 EUR

A
Cheapest Retailer
-
€178 EUR
$199 USD
A
Retailer 2
-
€179 EUR
$200 USD
View
Final sale: no returns
A
Retailer 3
-
€232 EUR
£204 GBP
View
A
Retailer 4
-
€265 EUR
$296 USD
View
A
Retailer 5
-
€306 EUR
View
A
Retailer 6
-
€314 EUR
£276 GBP
View
A
Retailer 7
-
€321 EUR
$359 USD
View
A
Retailer 8
-
€338 EUR
£298 GBP
View
B+
Retailer 9
-
€439 EUR
$490 USD
View
B+
Retailer 10
-
€462 EUR
$516 USD
View
Retailer 11
-
€469 EUR
$524 USD
View
Price last confirmed 110 days ago
B
Retailer 12
-
€472 EUR
$527 USD
View
B
Retailer 13
-
€622 EUR
$695 USD
View
B
Retailer 14
-
€834 EUR
£734 GBP
View
Most Expensive
B
Reve Diamonds
C4CC612A1 · Oct 30
€955 EUR
$1,067 USD
View
14 more retailers have this diamond
Prices start from €178 EURSave up to €777 EUR

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
€178 EUR