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Cushion|Lab Grown|IGI

1.80ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG587384143

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG587384143

Diamond specifications and retailer prices

From €248 EUR
$277 USD
As of October 30, 2026
Save €2,169 EUR (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,417 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG587384143 or 587384143. Listed at 17 retailers as of October 30, 2026, with prices from €248 to €2,417, a €2,169 spread on the same certified stone. Do Amore Diamonds lists it at €2,417. 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

1.80
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG587384143
Dimensions7.22 × 6.92 × 4.64 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
7.22 mm6.92 mm1.80 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG587384143
Side View
Table 62.0%Crown 35°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 67.1%

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: €2,417 EUR|Low: €248 EUR|High: €2,417 EUR|Avg: €832 EUR|+13.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 5€248 EUR
Retailer 9€337 EUR
Retailer 10€448 EUR
Retailer 7€474 EUR
Retailer 2€476 EUR
Retailer 11€492 EUR
Retailer 6€661 EUR
Retailer 4€891 EUR
Retailer 3€1,098 EUR
Retailer 12€1,339 EUR
Retailer 13€1,369 EUR
Retailer 8€1,493 EUR
Do Amore Diamonds€2,417 EUR

42 data points across 13 retailers

17 retailers€248 EUR to €2,417 EUR

A
Cheapest Retailer
-
€248 EUR
$277 USD
Final sale: no returns
A
Retailer 2
-
€337 EUR
$376 USD
View
Retailer 3
-
€388 EUR
£342 GBP
View
Price last confirmed 39 days ago
A
Retailer 4
-
€448 EUR
$500 USD
View
A
Retailer 5
-
€474 EUR
$530 USD
View
A
Retailer 6
-
€476 EUR
£419 GBP
View
A
Retailer 7
-
€492 EUR
$550 USD
View
B+
Retailer 8
-
€661 EUR
£581 GBP
View
B+
Retailer 9
-
€891 EUR
$995 USD
View
Retailer 10
-
€975 EUR
$1,089 USD
View
Price last confirmed 65 days ago
B
Retailer 11
-
€1,037 EUR
CA$1,609 CAD
View
B
Retailer 12
-
€1,098 EUR
$1,227 USD
View
B
Retailer 13
-
€1,339 EUR
$1,496 USD
View
B
Retailer 14
-
€1,369 EUR
SGD 2,067 SGD
View
B
Retailer 15
-
€1,493 EUR
£1,313 GBP
View
Retailer 16
-
€2,086 EUR
$2,330 USD
View
Price last confirmed 30 days ago
Most Expensive
B
Do Amore Diamonds
27-70838E392 · Oct 31
€2,417 EUR
$2,700 USD
View
16 more retailers have this diamond
Prices start from €248 EURSave up to €2,169 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
1.80ct Cushion
€248 EUR