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Cushion|Lab Grown|IGI

1.91ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG800614356

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800614356

Diamond specifications and retailer prices

From €664 EUR
$742 USD
As of November 1, 2026
Save €1,024 EUR (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €4,511 EUR at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG800614356 or 800614356. Listed at 6 retailers as of November 1, 2026, with a 154% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800614356
Dimensions8.32 × 6.30 × 4.32 mm
L/W Ratio1.32
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
8.32 mm6.30 mm1.91 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800614356
Side View
Table 63.0%Crown 33.5°Girdle: STK-VTKPavilion 32.2°Culet: NoneDepth 68.6%

Caratlytics Score

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A+
Exceptional
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: Nov 1
Current: €4,511 EUR|Low: €652 EUR|High: €4,511 EUR|Avg: €1,949 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4€664 EUR
Retailer 5€686 EUR
Retailer 3€1,057 EUR
Retailer 8€1,216 EUR
Retailer 2€1,688 EUR
Retailer 7€2,515 EUR
Retailer 9€2,546 EUR
Retailer 6€2,851 EUR
Brilliant Earth€4,511 EUR

26 data points across 9 retailers

6 retailers€664 EUR to €1,688 EUR

A+
Cheapest Retailer
-
€664 EUR
$742 USD
A
Retailer 2
-
€686 EUR
$766 USD
View
A
Retailer 3
-
€1,057 EUR
$1,181 USD
View
A
Retailer 4
-
€1,688 EUR
£1,485 GBP
View
Retailer 5
-
€2,851 EUR
$3,185 USD
View
Price last confirmed 11 days ago
Most Expensive
Brilliant Earth
20189324A · Sep 23
€4,511 EUR
$5,040 USD
View
Price last confirmed 39 days ago
5 more retailers have this diamond
Prices start from €664 EURSave up to €1,024 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+
1.91ct Cushion
€664 EUR