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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG683520322

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG683520322

Diamond specifications and retailer prices

From $442 USD
As of October 28, 2026
Save $3,898 USD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,340 USD at Brilliant Earth · As of October 28, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683520322 or 683520322. Listed at 21 retailers as of October 28, 2026, with prices from $442 to $4,340, a $3,898 spread on the same certified stone. Brilliant Earth lists it at $4,340. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683520322
Dimensions8.77 × 6.41 × 4.28 mm
L/W Ratio1.37
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
8.77 mm6.41 mm1.83 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683520322
Side View
Table 59.0%Crown 32.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 66.8%

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 28
Current: $4,340 USD|Low: $442 USD|High: $5,290 USD|Avg: $1,736 USD|-18.0%
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
Retailer 18
Retailer 19
Retailer 20
October 28, 2026
Retailer 9$442 USD
Retailer 20$576 USD
Retailer 16$666 USD
Retailer 12$701 USD
Retailer 4$703 USD
Retailer 14$705 USD
Retailer 3$747 USD
Retailer 13$891 USD
Retailer 2$931 USD
Retailer 19$1,143 USD
Retailer 17$1,271 USD
Retailer 8$1,585 USD
Retailer 6$1,810 USD
Retailer 7$1,837 USD
Retailer 11$1,892 USD
Retailer 10$1,925 USD
Retailer 15$1,993 USD
Retailer 18$3,265 USD
Retailer 5$3,520 USD
Brilliant Earth$4,340 USD

40 data points across 20 retailers

21 retailers$442 USD to $4,340 USD

A
Cheapest Retailer
-
$442 USD
Final sale: no returns
A
Retailer 2
-
$576 USD
£454 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
$666 USD
HK$5,200 HKD
View
A
Retailer 4
-
$701 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$703 USD
View
A
Retailer 6
-
$705 USD
View
A
Retailer 7
-
$747 USD
View
A
Retailer 8
-
$891 USD
£701 GBP
View
A
Retailer 9
-
$931 USD
ZAR 15,043 ZAR
View
A
Retailer 10
-
$1,143 USD
View
A
Retailer 11
-
$1,271 USD
A$1,956 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$1,585 USD
£1,248 GBP
View
B+
Retailer 13
-
$1,810 USD
View
A
Retailer 14
-
$1,837 USD
View
B+
Retailer 15
-
$1,892 USD
View
B+
Retailer 16
-
$1,925 USD
SGD 2,601 SGD
View
B+
Retailer 17
-
$1,993 USD
£1,569 GBP
View
B+
Retailer 18
-
$3,265 USD
View
Price last confirmed 7 days ago
B
Retailer 19
-
$3,378 USD
£2,660 GBP
View
B
Retailer 20
-
$3,520 USD
View
Most Expensive
B
Brilliant Earth
20467239Y · Oct 28
$4,340 USD
View
20 more retailers have this diamond
Prices start from $442 USDSave up to $3,898 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
$442 USD