Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG775615048

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG775615048

Diamond specifications and retailer prices

From $767 USD
As of October 30, 2026
Save $4,373 USD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,140 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 LG775615048 or 775615048. Listed at 18 retailers as of October 30, 2026, with prices from $767 to $5,140, a $4,373 spread on the same certified stone. Brilliant Earth lists it at $5,140. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775615048
Dimensions8.31 × 6.55 × 4.42 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
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
8.31 mm6.55 mm1.83 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775615048
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 67.5%

Caratlytics Score

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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: $5,140 USD|Low: $767 USD|High: $6,060 USD|Avg: $2,292 USD|-12.6%
Brilliant Earth
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
Retailer 17
October 31, 2026
Retailer 4$767 USD
Retailer 14$922 USD
Retailer 10$975 USD
Retailer 16$1,050 USD
Retailer 9$1,067 USD
Retailer 2$1,275 USD
Retailer 5$1,295 USD
Retailer 11$1,301 USD
Retailer 13$1,463 USD
Retailer 17$1,559 USD
Retailer 15$2,469 USD
Retailer 7$2,681 USD
Retailer 8$2,715 USD
Retailer 3$2,745 USD
Retailer 6$2,745 USD
Retailer 12$3,371 USD
Brilliant Earth$5,140 USD

43 data points across 17 retailers

18 retailers$767 USD to $5,140 USD

A
Cheapest Retailer
-
$767 USD
Final sale: no returns
A
Retailer 2
-
$922 USD
HK$7,200 HKD
View
A
Retailer 3
-
$975 USD
View
A
Retailer 4
-
$1,050 USD
View
Retailer 5
-
$1,067 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,275 USD
£1,004 GBP
View
A
Retailer 7
-
$1,295 USD
View
A
Retailer 8
-
$1,301 USD
€1,239 EUR
View
A
Retailer 9
-
$1,463 USD
ZAR 23,637 ZAR
View
A
Retailer 10
-
$1,559 USD
View
B+
Retailer 11
-
$2,469 USD
£1,944 GBP
View
B+
Retailer 12
-
$2,576 USD
View
B+
Retailer 13
-
$2,681 USD
SGD 3,623 SGD
View
B+
Retailer 14
-
$2,715 USD
View
B+
Retailer 15
-
$2,745 USD
View
B+
Retailer 16
-
$2,745 USD
View
B+
Retailer 17
-
$3,371 USD
£2,654 GBP
View
Most Expensive
B
Brilliant Earth
19073865A · Oct 30
$5,140 USD
View
17 more retailers have this diamond
Prices start from $767 USDSave up to $4,373 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
$767 USD