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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG817682190

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

Certificate IGI LG817682190

Diamond specifications and retailer prices

From $1,035 AUD
$727 USD
As of October 30, 2026
Save $4,261 AUD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,296 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 LG817682190 or 817682190. Listed at 8 retailers as of October 30, 2026, with prices from $1,035 to $5,296, a $4,261 spread on the same certified stone. Brilliant Earth lists it at $5,296. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817682190
Dimensions7.21 × 7.21 × 4.36 mm
L/W Ratio1.00
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
7.21 mm7.21 mm1.83 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817682190
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 32.6°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,296 AUD|Low: $925 AUD|High: $7,830 AUD|Avg: $2,627 AUD|-32.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5$1,035 AUD
Retailer 2$1,061 AUD
Retailer 6$1,065 AUD
Retailer 8$1,538 AUD
Retailer 4$1,552 AUD
Retailer 3$1,634 AUD
Retailer 7$2,634 AUD
Brilliant Earth$5,296 AUD

30 data points across 8 retailers

8 retailers$1,035 AUD to $5,296 AUD

A+
Cheapest Retailer
-
$1,035 AUD
$727 USD
A
Retailer 2
-
$1,061 AUD
$745 USD
View
A
Retailer 3
-
$1,065 AUD
$748 USD
View
A
Retailer 4
-
$1,538 AUD
€1,029 EUR
View
A
Retailer 5
-
$1,552 AUD
View
A
Retailer 6
-
$1,634 AUD
$1,148 USD
View
B+
Retailer 7
-
$2,634 AUD
£1,457 GBP
View
Most Expensive
B
Brilliant Earth
20711726A · Oct 31
$5,296 AUD
$3,720 USD
View
7 more retailers have this diamond
Prices start from $1,035 AUDSave up to $4,261 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
$1,035 AUD