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Cushion|Lab Grown|IGI

1.87ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG742524455

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

Certificate IGI LG742524455

Diamond specifications and retailer prices

From €237 EUR
$265 USD
As of October 30, 2026
Save €1,096 EUR (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,334 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.87ct lab-grown cushion diamond

This 1.87ct 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 standard cut grade and certified by IGI LG742524455 or 742524455. Listed at 13 retailers as of October 30, 2026, with prices from €237 to €1,334, a €1,096 spread on the same certified stone. Brilliant Earth lists it at €1,334. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.87
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742524455
Dimensions7.35 × 7.13 × 4.58 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.35 mm7.13 mm1.87 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742524455
Side View
Table 62.0%Crown 33.4°Girdle: THK-ETKPavilion 37.4°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
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 30
Current: €1,334 EUR|Low: €218 EUR|High: €2,121 EUR|Avg: €670 EUR|-37.1%
Brilliant Earth
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 12€237 EUR
Retailer 10€263 EUR
Retailer 4€312 EUR
Retailer 8€354 EUR
Retailer 6€430 EUR
Retailer 2€493 EUR
Retailer 9€500 EUR
Retailer 11€596 EUR
Retailer 13€892 EUR
Retailer 5€1,047 EUR
Retailer 7€1,059 EUR
Retailer 3€1,174 EUR
Brilliant Earth€1,334 EUR

43 data points across 13 retailers

13 retailers€237 EUR to €1,334 EUR

A
Cheapest Retailer
-
€237 EUR
$265 USD
Final sale: no returns
Retailer 2
-
€263 EUR
$294 USD
View
Price last confirmed 16 days ago
Retailer 3
-
€312 EUR
£275 GBP
View
Price last confirmed 23 days ago
B
Retailer 4
-
€354 EUR
$395 USD
View
B+
Retailer 5
-
€430 EUR
View
B+
Retailer 6
-
€493 EUR
£434 GBP
View
B+
Retailer 7
-
€500 EUR
$559 USD
View
B+
Retailer 8
-
€596 EUR
$666 USD
View
B
Retailer 9
-
€892 EUR
$997 USD
View
Retailer 10
-
€1,047 EUR
$1,170 USD
View
Price last confirmed 33 days ago
B
Retailer 11
-
€1,059 EUR
£932 GBP
View
B
Retailer 12
-
€1,174 EUR
$1,311 USD
View
Most Expensive
B
Brilliant Earth
18587606A · Oct 31
€1,334 EUR
$1,490 USD
View
12 more retailers have this diamond
Prices start from €237 EURSave up to €1,096 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
1.87ct Cushion
€237 EUR