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Cushion|Lab Grown|IGI

1.91ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG474141415

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG474141415

Diamond specifications and retailer prices

From $484 USD
As of October 30, 2026
Save $2,238 USD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,840 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.91ct lab-grown cushion diamond

This 1.91ct 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 LG474141415 or 474141415. Listed at 11 retailers as of October 30, 2026, with a 462% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.91
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474141415
Dimensions7.73 × 6.80 × 4.59 mm
L/W Ratio1.14
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
7.73 mm6.80 mm1.91 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474141415
Side View
Table 62.5%Crown 32.6°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 67.5%

Caratlytics Score

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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: $2,174 USD|Low: $346 USD|High: $2,722 USD|Avg: $1,309 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$484 USD
Retailer 2$581 USD
Retailer 6$680 USD
Retailer 10$791 USD
Retailer 8$844 USD
Retailer 3$974 USD
Retailer 5$1,310 USD
Retailer 1$2,174 USD
Retailer 7$2,400 USD
Retailer 4$2,722 USD

42 data points across 10 retailers

11 retailers$484 USD to $2,722 USD

A
Cheapest Retailer
-
$484 USD
Final sale: no returns
A
Retailer 2
-
$581 USD
View
A
Retailer 3
-
$680 USD
View
B+
Retailer 4
-
$791 USD
View
B+
Retailer 5
-
$844 USD
View
B+
Retailer 6
-
$974 USD
£767 GBP
View
B
Retailer 7
-
$1,310 USD
View
B
Retailer 8
-
$2,174 USD
£1,712 GBP
View
B
Retailer 9
-
$2,400 USD
View
B
Retailer 10
-
$2,722 USD
CA$3,780 CAD
View
Most Expensive
Do Amore Diamonds
27-B6953DD7B · Oct 31
$3,840 USD
View
Price under review
10 more retailers have this diamond
Prices start from $484 USDSave up to $2,238 USD

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
1.91ct Cushion
$484 USD