Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662376

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662376

Diamond specifications and retailer prices

From $790 USD
£622 GBP
As of October 30, 2026
Save $3,940 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,730 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.83ct lab-grown cushion diamond

This 1.83ct 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 LG846662376 or 846662376. Listed at 10 retailers as of October 30, 2026, with prices from $790 to $4,730, a $3,940 spread on the same certified stone. Brilliant Earth lists it at $4,730. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662376
Dimensions8.93 × 6.27 × 4.06 mm
L/W Ratio1.42
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
8.93 mm6.27 mm1.83 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662376
Side View
Table 62.0%Crown 34.4°Girdle: MED-THKPavilion 36.8°Culet: NoneDepth 64.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $4,730 USD|Low: $790 USD|High: $7,864 USD|Avg: $2,987 USD|-19.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5$790 USD
Retailer 6$1,142 USD
Retailer 9$1,220 USD
Retailer 3$1,575 USD
Retailer 7$2,057 USD
Retailer 4$2,583 USD
Retailer 2$2,735 USD
Retailer 10$3,565 USD
Retailer 8$3,700 USD
Brilliant Earth$4,730 USD

13 data points across 10 retailers

10 retailers$790 USD to $4,730 USD

A
Cheapest Retailer
-
$790 USD
£622 GBP
A
Retailer 2
-
$1,142 USD
View
A
Retailer 3
-
$1,220 USD
View
A
Retailer 4
-
$1,575 USD
View
B+
Retailer 5
-
$2,057 USD
€1,959 EUR
View
B+
Retailer 6
-
$2,583 USD
View
B+
Retailer 7
-
$2,735 USD
View
Retailer 8
-
$3,565 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$3,700 USD
£2,913 GBP
View
Most Expensive
B
Brilliant Earth
22154883A · Oct 30
$4,730 USD
View
9 more retailers have this diamond
Prices start from $790 USDSave up to $3,940 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
1.83ct Cushion
$790 USD