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Cushion|Lab Grown|IGI

1.67ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG579366652

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG579366652

Diamond specifications and retailer prices

From €373 EUR
$417 USD
As of October 25, 2026
Save €1,274 EUR (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,647 EUR at Do Amore Diamonds · As of October 27, 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 top-tier cut grade and certified by IGI LG579366652 or 579366652. Listed at 5 retailers as of October 25, 2026, with prices from €373 to €1,647, a €1,274 spread on the same certified stone. Do Amore Diamonds lists it at €1,647. 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

1.67
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579366652
Dimensions7.82 × 6.36 × 4.35 mm
L/W Ratio1.23
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
7.82 mm6.36 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579366652
Side View
Table 60.0%Crown 35.9°Girdle: THN-STKPavilion 38.2°Culet: NoneDepth 68.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: €1,647 EUR|Low: €136 EUR|High: €1,745 EUR|Avg: €753 EUR|-5.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 5€204 EUR
Retailer 4€373 EUR
Retailer 8€419 EUR
Retailer 9€502 EUR
Retailer 6€507 EUR
Retailer 7€721 EUR
Retailer 3€774 EUR
Retailer 2€945 EUR
Retailer 10€1,343 EUR
Do Amore Diamonds€1,647 EUR

14 data points across 10 retailers

5 retailers€373 EUR to €1,647 EUR

B+
Cheapest Retailer
-
€373 EUR
$417 USD
Retailer 2
-
€774 EUR
$865 USD
View
Price last confirmed 10 days ago
Retailer 3
-
€828 EUR
$925 USD
View
Price last confirmed 10 days ago
Retailer 4
-
€945 EUR
£831 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-C12E4A2F5 · Oct 27
€1,647 EUR
$1,840 USD
View
4 more retailers have this diamond
Prices start from €373 EURSave up to €1,274 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.

B+
1.67ct Cushion
€373 EUR