Cushion|Lab Grown|IGI

1.86ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG794625116

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG794625116

Diamond specifications and retailer prices

From $1,689 USD
As of October 26, 2026
Save $2,451 USD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,140 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG794625116 or 794625116. Listed at 5 retailers as of October 26, 2026, with prices from $1,689 to $4,140, a $2,451 spread on the same certified stone. Brilliant Earth lists it at $4,140. 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 angle33°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794625116
Dimensions7.05 × 6.94 × 4.62 mm
L/W Ratio1.02
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
7.05 mm6.94 mm1.86 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794625116
Side View
Table 65.0%Crown 33°Girdle: MED-THKPavilion 38.4°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: $4,140 USD|Low: $940 USD|High: $7,140 USD|Avg: $2,966 USD|-32.0%
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 16$940 USD
Retailer 11$1,064 USD
Retailer 2$1,689 USD
Retailer 5$1,730 USD
Retailer 9$1,821 USD
Retailer 17$1,960 USD
Retailer 14$2,025 USD
Retailer 3$2,131 USD
Retailer 13$2,268 USD
Retailer 6$2,782 USD
Retailer 7$3,261 USD
Retailer 10$3,580 USD
Retailer 15$3,904 USD
Retailer 8$4,123 USD
Brilliant Earth$4,140 USD
Retailer 4$4,193 USD
Retailer 12$4,940 USD

18 data points across 17 retailers

5 retailers$1,689 USD to $4,140 USD

Retailer 1
-
$1,064 USD
Price last confirmed 18 days ago
A
Retailer 2
-
$1,689 USD
View
Retailer 3
-
$3,580 USD
View
Price last confirmed 9 days ago
Retailer 4
-
$3,904 USD
£3,074 GBP
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
21414001Y · Oct 30
$4,140 USD
View
4 more retailers have this diamond
Prices start from $1,689 USDSave up to $2,451 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
$1,689 USD