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Cushion|Lab Grown|IGI

1.67ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG520295377

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

Certificate IGI LG520295377

Diamond specifications and retailer prices

From €391 EUR
$437 USD
As of October 30, 2026
Save €1,847 EUR (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,238 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown cushion diamond

This 1.67ct 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 very-good cut grade and certified by IGI LG520295377 or 520295377. Listed at 11 retailers as of October 30, 2026, with prices from €391 to €2,238, a €1,847 spread on the same certified stone. Do Amore Diamonds lists it at €2,238. 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

1.67
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520295377
Dimensions6.77 × 6.70 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.77 mm6.70 mm1.67 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520295377
Side View
Table 62.5%Crown 35°Girdle: STK-VTKPavilion 39.8°Culet: NoneDepth 69.6%

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: €2,238 EUR|Low: €246 EUR|High: €2,238 EUR|Avg: €838 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8€312 EUR
Retailer 7€391 EUR
Retailer 5€394 EUR
Retailer 9€515 EUR
Retailer 4€608 EUR
Retailer 6€788 EUR
Retailer 11€822 EUR
Retailer 3€1,124 EUR
Retailer 10€1,253 EUR
Retailer 2€1,380 EUR
Do Amore Diamonds€2,238 EUR

35 data points across 11 retailers

11 retailers€391 EUR to €2,238 EUR

Retailer 1
-
€312 EUR
$349 USD
Price last confirmed 7 days ago
A
Retailer 2
-
€391 EUR
$437 USD
View
B+
Retailer 3
-
€394 EUR
$440 USD
View
B+
Retailer 4
-
€515 EUR
$575 USD
View
B+
Retailer 5
-
€608 EUR
£535 GBP
View
Retailer 6
-
€788 EUR
$880 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
€822 EUR
$918 USD
View
B
Retailer 8
-
€1,124 EUR
$1,256 USD
View
B
Retailer 9
-
€1,253 EUR
$1,400 USD
View
B
Retailer 10
-
€1,380 EUR
£1,214 GBP
View
Most Expensive
C
Do Amore Diamonds
27-2807F5B39 · Oct 31
€2,238 EUR
$2,500 USD
View
10 more retailers have this diamond
Prices start from €391 EURSave up to €1,847 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
1.67ct Cushion
€391 EUR