Cushion|Lab Grown|IGI

1.91ct D IF Cushion Lab Grown Diamond

GD • D/IF • IGI LG841678154

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841678154

Diamond specifications and retailer prices

From $652 USD
£513 GBP
As of November 1, 2026
Save $3,348 USD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,000 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG841678154 or 841678154. Listed at 15 retailers as of October 31, 2026, with prices from $652 to $4,000, a $3,348 spread on the same certified stone. Do Amore Diamonds lists it at $4,000. 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

1.91
Carat
D
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678154
Dimensions9.33 × 6.11 × 4.12 mm
L/W Ratio1.53
Girdle conditionFaceted
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
9.33 mm6.11 mm1.91 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678154
Side View
Table 59.0%Crown 33.8°Girdle: THK-VTKPavilion 34.6°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $4,000 USD|Low: $652 USD|High: $11,093 USD|Avg: $2,300 USD|-19.5%
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 9$652 USD
Retailer 12$700 USD
Retailer 15$722 USD
Retailer 16$875 USD
Retailer 10$961 USD
Retailer 4$1,268 USD
Retailer 14$1,436 USD
Retailer 3$1,621 USD
Retailer 2$2,574 USD
Retailer 7$2,820 USD
Retailer 8$3,103 USD
Retailer 6$3,165 USD
Retailer 11$3,368 USD
Retailer 5$3,563 USD
Retailer 13$3,860 USD
Do Amore Diamonds$4,000 USD

24 data points across 16 retailers

15 retailers$652 USD to $4,000 USD

A
Cheapest Retailer
-
$652 USD
£513 GBP
A
Retailer 2
-
$700 USD
View
A
Retailer 3
-
$722 USD
View
A
Retailer 4
-
$875 USD
View
A
Retailer 5
-
$961 USD
€915 EUR
View
A
Retailer 6
-
$1,268 USD
View
B+
Retailer 7
-
$1,436 USD
A$2,209 AUD
View
B+
Retailer 8
-
$1,621 USD
View
B
Retailer 9
-
$2,574 USD
£2,027 GBP
View
Retailer 10
-
$2,820 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$3,165 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$3,368 USD
A$5,181 AUD
View
B
Retailer 13
-
$3,563 USD
View
B
Retailer 14
-
$3,860 USD
View
Most Expensive
B
Do Amore Diamonds
27-48A7540F9 · Oct 31
$4,000 USD
View
14 more retailers have this diamond
Prices start from $652 USDSave up to $3,348 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
$652 USD