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Cushion|Lab Grown|IGI

1.80ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG744513208

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG744513208

Diamond specifications and retailer prices

From $703 AUD
$494 USD
As of October 30, 2026
Save $4,550 AUD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,253 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.8ct lab-grown cushion diamond

This 1.8ct 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 LG744513208 or 744513208. Listed at 13 retailers as of October 30, 2026, with prices from $703 to $5,253, a $4,550 spread on the same certified stone. Brilliant Earth lists it at $5,253. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513208
Dimensions8.20 × 8.20 × 6.58 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
8.20 mm8.20 mm1.80 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513208
Side View
Table 62.0%Crown 33.9°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 68.7%

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: $5,253 AUD|Low: $503 AUD|High: $6,264 AUD|Avg: $2,593 AUD|-16.1%
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 30, 2026
Retailer 5$703 AUD
Retailer 9$920 AUD
Retailer 13$982 AUD
Retailer 8$1,088 AUD
Retailer 6$1,236 AUD
Retailer 3$1,600 AUD
Retailer 2$1,756 AUD
Retailer 11$2,030 AUD
Retailer 7$2,786 AUD
Retailer 4$4,438 AUD
Retailer 12$4,648 AUD
Retailer 10$4,897 AUD
Brilliant Earth$5,253 AUD

31 data points across 13 retailers

13 retailers$703 AUD to $5,253 AUD

A
Cheapest Retailer
-
$703 AUD
$494 USD
Final sale: no returns
A
Retailer 2
-
$920 AUD
$646 USD
View
A
Retailer 3
-
$982 AUD
$690 USD
View
A
Retailer 4
-
$1,088 AUD
$764 USD
View
A
Retailer 5
-
$1,236 AUD
€827 EUR
View
A
Retailer 6
-
$1,600 AUD
$1,124 USD
View
A
Retailer 7
-
$1,756 AUD
View
A
Retailer 8
-
$2,030 AUD
$1,426 USD
View
B+
Retailer 9
-
$2,786 AUD
£1,541 GBP
View
Retailer 10
-
$4,438 AUD
View
Price last confirmed 22 days ago
Retailer 11
-
$4,648 AUD
$3,265 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$4,897 AUD
$3,440 USD
View
Most Expensive
B
Brilliant Earth
16861116Y · Oct 30
$5,253 AUD
$3,690 USD
View
12 more retailers have this diamond
Prices start from $703 AUDSave up to $4,550 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
1.80ct Cushion
$703 AUD