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Cushion|Lab Grown|IGI

1.90ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG754508296

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG754508296

Diamond specifications and retailer prices

From $6,406 AUD
$4,500 USD
As of October 31, 2026
8 retailers carry this diamond
Most expensive: $6,406 AUD at Brilliant Earth
View at Brilliant Earth

About this 1.9ct lab-grown cushion diamond

This 1.9ct 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 LG754508296 or 754508296. Listed at 8 retailers as of October 31, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.90
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508296
Dimensions8.16 × 6.63 × 4.45 mm
L/W Ratio1.23
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
8.16 mm6.63 mm1.90 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508296
Side View
Table 59.0%Crown 37.5°Girdle: MED-THKPavilion 36.5°Culet: NoneDepth 67.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $6,406 AUD|Low: $920 AUD|High: $6,606 AUD|Avg: $2,848 AUD|-3.0%
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
Retailer 18
October 9, 2026
Retailer 3$920 AUD
Retailer 5$1,248 AUD
Retailer 14$1,424 AUD
Retailer 10$1,512 AUD
Retailer 11$1,543 AUD
Retailer 13$1,564 AUD
Retailer 15$1,732 AUD
Retailer 6$1,780 AUD
Retailer 8$2,380 AUD
Retailer 7$2,929 AUD
Retailer 9$3,430 AUD
Retailer 4$3,643 AUD
Retailer 17$4,426 AUD
Retailer 16$4,527 AUD
Retailer 12$4,835 AUD
Retailer 18$5,048 AUD
Brilliant Earth$6,406 AUD
Retailer 2$6,534 AUD

19 data points across 18 retailers

8 retailers

Retailer 1
-
$1,512 AUD
HK$8,300 HKD
Price last confirmed 58 days ago
Retailer 2
-
$1,732 AUD
ZAR 19,656 ZAR
View
Price last confirmed 27 days ago
Retailer 3
-
$2,380 AUD
$1,672 USD
View
Price last confirmed 24 days ago
Retailer 4
-
$3,430 AUD
$2,409 USD
View
Price last confirmed 24 days ago
Retailer 5
-
$3,643 AUD
SGD 3,458 SGD
View
Price last confirmed 24 days ago
Retailer 6
-
$4,527 AUD
$3,180 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$4,835 AUD
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
18668479Y · Oct 31
$6,406 AUD
$4,500 USD
View
7 more retailers have this diamond

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.

B
1.90ct Cushion
$6,406 AUD