CaratHunter
Plans
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 €249 EUR
$277 USD
As of October 30, 2026
Save €2,177 EUR (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,426 EUR at Do Amore Diamonds · As of October 29, 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 29, 2026, with prices from €249 to €2,426, a €2,177 spread on the same certified stone. Do Amore Diamonds lists it at €2,426. 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
Colour
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: €2,426 EUR|Low: €249 EUR|High: €2,426 EUR|Avg: €824 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
October 30, 2026
Retailer 5€249 EUR
Retailer 9€338 EUR
Retailer 7€449 EUR
Retailer 10€449 EUR
Retailer 2€479 EUR
Retailer 11€494 EUR
Retailer 6€669 EUR
Retailer 4€894 EUR
Retailer 3€1,102 EUR
Retailer 12€1,344 EUR
Retailer 13€1,374 EUR
Retailer 8€1,498 EUR
Do Amore Diamonds€2,426 EUR

41 data points across 13 retailers

17 retailers€249 EUR to €2,426 EUR

A
Cheapest Retailer
-
€249 EUR
$277 USD
Final sale: no returns
A
Retailer 2
-
€338 EUR
$376 USD
View
Retailer 3
-
€390 EUR
£342 GBP
View
Price last confirmed 37 days ago
A
Retailer 4
-
€449 EUR
$500 USD
View
A
Retailer 5
-
€449 EUR
$500 USD
View
A
Retailer 6
-
€479 EUR
£420 GBP
View
A
Retailer 7
-
€494 EUR
$550 USD
View
B+
Retailer 8
-
€669 EUR
£586 GBP
View
B+
Retailer 9
-
€894 EUR
$995 USD
View
Retailer 10
-
€979 EUR
$1,089 USD
View
Price last confirmed 63 days ago
B
Retailer 11
-
€1,041 EUR
CA$1,609 CAD
View
B
Retailer 12
-
€1,102 EUR
$1,227 USD
View
B
Retailer 13
-
€1,344 EUR
$1,496 USD
View
B
Retailer 14
-
€1,374 EUR
SGD 2,067 SGD
View
B
Retailer 15
-
€1,498 EUR
£1,313 GBP
View
Retailer 16
-
€2,093 EUR
$2,330 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Do Amore Diamonds
27-70838E392 · Oct 29
€2,426 EUR
$2,700 USD
View
16 more retailers have this diamond
Prices start from €249 EURSave up to €2,177 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
€249 EUR