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Cushion|Lab Grown|IGI

1.86ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG828664278

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG828664278

Diamond specifications and retailer prices

From $1,342 USD
As of October 30, 2026
Save $8,048 USD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,390 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.86ct lab-grown cushion diamond

This 1.86ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828664278 or 828664278. Listed at 10 retailers as of October 29, 2026, with prices from $1,342 to $9,390, a $8,048 spread on the same certified stone. Do Amore Diamonds lists it at $9,390. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828664278
Dimensions7.78 × 7.41 × 4.49 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeLarge
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
7.78 mm7.41 mm1.86 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828664278
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 39.9°Culet: LargeDepth 60.6%

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: $9,390 USD|Low: $1,342 USD|High: $9,390 USD|Avg: $3,652 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$1,342 USD
Retailer 7$1,373 USD
Retailer 10$2,020 USD
Retailer 3$2,136 USD
Retailer 6$2,165 USD
Retailer 5$3,787 USD
Retailer 9$3,869 USD
Retailer 4$4,896 USD
Retailer 2$5,371 USD
Do Amore Diamonds$9,390 USD

34 data points across 10 retailers

10 retailers$1,342 USD to $9,390 USD

A
Cheapest Retailer
-
$1,342 USD
Retailer 2
-
$1,373 USD
View
Price last confirmed 13 days ago
Retailer 3
-
$2,020 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$2,136 USD
£1,682 GBP
View
B+
Retailer 5
-
$2,165 USD
View
B+
Retailer 6
-
$3,787 USD
View
B
Retailer 7
-
$3,869 USD
View
B
Retailer 8
-
$4,896 USD
£3,855 GBP
View
B
Retailer 9
-
$5,371 USD
View
Most Expensive
B
Do Amore Diamonds
20-E98518 · Oct 29
$9,390 USD
View
9 more retailers have this diamond
Prices start from $1,342 USDSave up to $8,048 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
1.86ct Cushion
$1,342 USD