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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 $877 NZD
$494 USD
As of October 30, 2026
Save $5,671 NZD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,547 NZD 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 $877 to $6,547, a $5,671 spread on the same certified stone. Brilliant Earth lists it at $6,547. 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: $6,547 NZD|Low: $626 NZD|High: $7,807 NZD|Avg: $3,231 NZD|-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$877 NZD
Retailer 9$1,146 NZD
Retailer 13$1,224 NZD
Retailer 8$1,356 NZD
Retailer 6$1,541 NZD
Retailer 3$1,994 NZD
Retailer 2$2,189 NZD
Retailer 11$2,530 NZD
Retailer 7$3,472 NZD
Retailer 4$5,531 NZD
Retailer 12$5,793 NZD
Retailer 10$6,104 NZD
Brilliant Earth$6,547 NZD

31 data points across 13 retailers

13 retailers$877 NZD to $6,547 NZD

A
Cheapest Retailer
-
$877 NZD
$494 USD
Final sale: no returns
A
Retailer 2
-
$1,146 NZD
$646 USD
View
A
Retailer 3
-
$1,224 NZD
$690 USD
View
A
Retailer 4
-
$1,356 NZD
$764 USD
View
A
Retailer 5
-
$1,541 NZD
€827 EUR
View
A
Retailer 6
-
$1,994 NZD
$1,124 USD
View
A
Retailer 7
-
$2,189 NZD
A$1,898 AUD
View
A
Retailer 8
-
$2,530 NZD
$1,426 USD
View
B+
Retailer 9
-
$3,472 NZD
£1,541 GBP
View
Retailer 10
-
$5,531 NZD
A$4,796 AUD
View
Price last confirmed 23 days ago
Retailer 11
-
$5,793 NZD
$3,265 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$6,104 NZD
$3,440 USD
View
Most Expensive
B
Brilliant Earth
16861116Y · Oct 30
$6,547 NZD
$3,690 USD
View
12 more retailers have this diamond
Prices start from $877 NZDSave up to $5,671 NZD

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
$877 NZD