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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634991

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634991

Diamond specifications and retailer prices

From $1,019 AUD
$716 USD
As of October 30, 2026
Save $5,159 AUD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,178 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 FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840634991 or 840634991. Listed at 17 retailers as of October 30, 2026, with prices from $1,019 to $6,178, a $5,159 spread on the same certified stone. Brilliant Earth lists it at $6,178. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.83
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634991
Dimensions9.18 × 6.13 × 4.11 mm
L/W Ratio1.50
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
9.18 mm6.13 mm1.83 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634991
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 67.0%

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: $6,178 AUD|Low: $1,019 AUD|High: $8,342 AUD|Avg: $3,001 AUD|-25.9%
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
November 1, 2026
Retailer 4$1,019 AUD
Retailer 10$1,179 AUD
Retailer 15$1,288 AUD
Retailer 5$1,409 AUD
Retailer 16$1,704 AUD
Retailer 11$1,734 AUD
Retailer 12$1,777 AUD
Retailer 14$1,916 AUD
Retailer 17$2,192 AUD
Retailer 13$2,417 AUD
Retailer 6$3,417 AUD
Retailer 3$3,600 AUD
Retailer 7$3,692 AUD
Retailer 2$4,393 AUD
Retailer 9$5,010 AUD
Retailer 8$5,061 AUD
Brilliant Earth$6,178 AUD

14 data points across 17 retailers

17 retailers$1,019 AUD to $6,178 AUD

A
Cheapest Retailer
-
$1,019 AUD
$716 USD
Final sale: no returns
A
Retailer 2
-
$1,179 AUD
£652 GBP
View
A
Retailer 3
-
$1,288 AUD
$905 USD
View
A
Retailer 4
-
$1,409 AUD
$990 USD
View
A
Retailer 5
-
$1,704 AUD
$1,197 USD
View
A
Retailer 6
-
$1,734 AUD
£959 GBP
View
A
Retailer 7
-
$1,777 AUD
€1,189 EUR
View
A
Retailer 8
-
$1,916 AUD
ZAR 21,748 ZAR
View
A
Retailer 9
-
$2,192 AUD
$1,540 USD
View
B+
Retailer 10
-
$2,417 AUD
$1,698 USD
View
B+
Retailer 11
-
$3,417 AUD
$2,400 USD
View
B+
Retailer 12
-
$3,600 AUD
$2,529 USD
View
B+
Retailer 13
-
$3,692 AUD
SGD 3,505 SGD
View
B
Retailer 14
-
$4,393 AUD
£2,430 GBP
View
B
Retailer 15
-
$5,010 AUD
$3,519 USD
View
Retailer 16
-
$5,061 AUD
$3,555 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21861636A · Oct 31
$6,178 AUD
$4,340 USD
View
16 more retailers have this diamond
Prices start from $1,019 AUDSave up to $5,159 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
$1,019 AUD