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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 $629 AUD
$442 USD
As of November 1, 2026
Save $4,724 AUD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,353 AUD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from $629 to $5,353, a $4,724 spread on the same certified stone. Brilliant Earth lists it at $5,353. 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
Colour
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: Nov 1
Current: $5,353 AUD|Low: $629 AUD|High: $7,531 AUD|Avg: $2,410 AUD|-28.9%
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
November 1, 2026
Retailer 9$629 AUD
Retailer 3$820 AUD
Retailer 18$948 AUD
Retailer 12$998 AUD
Retailer 13$1,001 AUD
Retailer 17$1,004 AUD
Retailer 4$1,063 AUD
Retailer 14$1,263 AUD
Retailer 16$1,326 AUD
Retailer 20$1,627 AUD
Retailer 15$1,796 AUD
Retailer 8$2,256 AUD
Retailer 6$2,577 AUD
Retailer 7$2,615 AUD
Retailer 11$2,694 AUD
Retailer 10$2,740 AUD
Retailer 2$2,833 AUD
Retailer 19$4,648 AUD
Retailer 5$5,011 AUD
Brilliant Earth$5,353 AUD

42 data points across 20 retailers

21 retailers$629 AUD to $5,353 AUD

A
Cheapest Retailer
-
$629 AUD
$442 USD
Final sale: no returns
Retailer 2
-
$820 AUD
£454 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
$948 AUD
HK$5,200 HKD
View
Retailer 4
-
$998 AUD
$701 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$1,001 AUD
$703 USD
View
A
Retailer 6
-
$1,004 AUD
$705 USD
View
A
Retailer 7
-
$1,063 AUD
$747 USD
View
A
Retailer 8
-
$1,263 AUD
£699 GBP
View
A
Retailer 9
-
$1,326 AUD
ZAR 15,043 ZAR
View
A
Retailer 10
-
$1,627 AUD
$1,143 USD
View
A
Retailer 11
-
$1,796 AUD
View
A
Retailer 12
-
$2,256 AUD
£1,248 GBP
View
B+
Retailer 13
-
$2,577 AUD
$1,810 USD
View
B+
Retailer 14
-
$2,615 AUD
$1,837 USD
View
B+
Retailer 15
-
$2,694 AUD
$1,892 USD
View
B+
Retailer 16
-
$2,740 AUD
SGD 2,601 SGD
View
B+
Retailer 17
-
$2,833 AUD
£1,567 GBP
View
B+
Retailer 18
-
$4,648 AUD
$3,265 USD
View
B
Retailer 19
-
$4,809 AUD
£2,660 GBP
View
B
Retailer 20
-
$5,011 AUD
$3,520 USD
View
Most Expensive
B
Brilliant Earth
20467239Y · Oct 31
$5,353 AUD
$3,760 USD
View
20 more retailers have this diamond
Prices start from $629 AUDSave up to $4,724 AUD

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
$629 AUD