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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816616093

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

Certificate IGI LG816616093

Diamond specifications and retailer prices

From $672 USD
As of October 31, 2026
Save $3,428 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,100 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 LG816616093 or 816616093. Listed at 17 retailers as of October 30, 2026, with prices from $672 to $4,100, a $3,428 spread on the same certified stone. Brilliant Earth lists it at $4,100. 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 angle35.7°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816616093
Dimensions6.95 × 6.88 × 4.56 mm
L/W Ratio1.01
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
6.95 mm6.88 mm1.83 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816616093
Side View
Table 62.0%Crown 35.7°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 66.3%

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 31
Current: $4,100 USD|Low: $672 USD|High: $5,860 USD|Avg: $2,122 USD|-30.0%
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 2$672 USD
Retailer 9$734 USD
Retailer 15$860 USD
Retailer 5$1,142 USD
Retailer 10$1,165 USD
Retailer 14$1,280 USD
Retailer 12$1,282 USD
Retailer 16$1,530 USD
Retailer 6$1,610 USD
Retailer 4$2,164 USD
Retailer 17$2,408 USD
Retailer 11$2,540 USD
Retailer 7$2,646 USD
Retailer 3$2,794 USD
Retailer 13$3,250 USD
Retailer 8$3,550 USD
Brilliant Earth$4,100 USD

30 data points across 17 retailers

17 retailers$672 USD to $4,100 USD

A
Cheapest Retailer
-
$672 USD
Final sale: no returns
Retailer 2
-
$734 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$860 USD
View
A
Retailer 4
-
$1,142 USD
View
A
Retailer 5
-
$1,165 USD
£917 GBP
View
A
Retailer 6
-
$1,280 USD
ZAR 20,676 ZAR
View
A
Retailer 7
-
$1,282 USD
€1,221 EUR
View
A
Retailer 8
-
$1,530 USD
View
A
Retailer 9
-
$1,610 USD
View
B+
Retailer 10
-
$2,164 USD
£1,704 GBP
View
B+
Retailer 11
-
$2,408 USD
View
B+
Retailer 12
-
$2,540 USD
View
B+
Retailer 13
-
$2,646 USD
SGD 3,576 SGD
View
B+
Retailer 14
-
$2,794 USD
View
B
Retailer 15
-
$3,250 USD
£2,559 GBP
View
Retailer 16
-
$3,550 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21421165A · Oct 30
$4,100 USD
View
16 more retailers have this diamond
Prices start from $672 USDSave up to $3,428 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
$672 USD