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Cushion|Lab Grown|IGI

1.86ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG744513209

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG744513209

Diamond specifications and retailer prices

From $727 AUD
$511 USD
As of October 30, 2026
Save $4,625 AUD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,353 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.86ct lab-grown cushion diamond

This 1.86ct 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 LG744513209 or 744513209. Listed at 13 retailers as of October 30, 2026, with prices from $727 to $5,353, a $4,625 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

1.86
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513209
Dimensions8.21 × 8.21 × 6.39 mm
L/W Ratio1.00
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
8.21 mm8.21 mm1.86 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513209
Side View
Table 62.0%Crown 33.6°Girdle: STK-THKPavilion 41°Culet: NoneDepth 72.0%

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 30
Current: $5,353 AUD|Low: $727 AUD|High: $7,887 AUD|Avg: $2,768 AUD|-32.1%
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
October 31, 2026
Retailer 5$727 AUD
Retailer 8$942 AUD
Retailer 3$1,018 AUD
Retailer 10$1,116 AUD
Retailer 2$1,215 AUD
Retailer 4$1,703 AUD
Retailer 7$1,811 AUD
Retailer 12$2,083 AUD
Retailer 11$2,860 AUD
Retailer 6$4,530 AUD
Retailer 13$4,662 AUD
Retailer 9$5,040 AUD
Brilliant Earth$5,353 AUD

27 data points across 13 retailers

13 retailers$727 AUD to $5,353 AUD

A
Cheapest Retailer
-
$727 AUD
$511 USD
Final sale: no returns
A
Retailer 2
-
$942 AUD
$662 USD
View
A
Retailer 3
-
$1,018 AUD
$715 USD
View
A
Retailer 4
-
$1,116 AUD
$784 USD
View
A
Retailer 5
-
$1,215 AUD
€813 EUR
View
A
Retailer 6
-
$1,703 AUD
$1,196 USD
View
A
Retailer 7
-
$1,811 AUD
View
A
Retailer 8
-
$2,083 AUD
$1,463 USD
View
B+
Retailer 9
-
$2,860 AUD
£1,582 GBP
View
B+
Retailer 10
-
$4,530 AUD
View
Retailer 11
-
$4,662 AUD
$3,275 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$5,040 AUD
$3,540 USD
View
Most Expensive
B
Brilliant Earth
16861062Y · Oct 31
$5,353 AUD
$3,760 USD
View
12 more retailers have this diamond
Prices start from $727 AUDSave up to $4,625 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
1.86ct Cushion
$727 AUD