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Cushion|Lab Grown|IGI

1.89ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG836607909

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836607909

Diamond specifications and retailer prices

From $1,052 AUD
$739 USD
As of October 30, 2026
Save $5,354 AUD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,406 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.89ct lab-grown cushion diamond

This 1.89ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836607909 or 836607909. Listed at 17 retailers as of October 30, 2026, with prices from $1,052 to $6,406, a $5,354 spread on the same certified stone. Brilliant Earth lists it at $6,406. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836607909
Dimensions9.08 × 6.22 × 4.18 mm
L/W Ratio1.46
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
9.08 mm6.22 mm1.89 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836607909
Side View
Table 62.0%Crown 34°Girdle: MED-THKPavilion 35.9°Culet: NoneDepth 67.2%

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: $6,406 AUD|Low: $1,052 AUD|High: $8,627 AUD|Avg: $3,015 AUD|-25.7%
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
October 31, 2026
Retailer 4$1,052 AUD
Retailer 9$1,156 AUD
Retailer 13$1,220 AUD
Retailer 11$1,331 AUD
Retailer 10$1,720 AUD
Retailer 15$1,755 AUD
Retailer 2$1,833 AUD
Retailer 14$1,977 AUD
Retailer 16$2,326 AUD
Retailer 12$2,497 AUD
Retailer 3$3,341 AUD
Retailer 5$3,529 AUD
Retailer 17$3,712 AUD
Retailer 6$3,808 AUD
Retailer 8$4,562 AUD
Retailer 7$5,232 AUD
Brilliant Earth$6,406 AUD

27 data points across 17 retailers

17 retailers$1,052 AUD to $6,406 AUD

A
Cheapest Retailer
-
$1,052 AUD
$739 USD
Final sale: no returns
Retailer 2
-
$1,156 AUD
$812 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$1,220 AUD
£675 GBP
View
A
Retailer 4
-
$1,331 AUD
$935 USD
View
A
Retailer 5
-
$1,720 AUD
£951 GBP
View
A
Retailer 6
-
$1,755 AUD
$1,233 USD
View
A
Retailer 7
-
$1,833 AUD
€1,226 EUR
View
A
Retailer 8
-
$1,977 AUD
ZAR 22,430 ZAR
View
A
Retailer 9
-
$2,326 AUD
$1,634 USD
View
B+
Retailer 10
-
$2,497 AUD
$1,754 USD
View
B+
Retailer 11
-
$3,341 AUD
£1,848 GBP
View
B+
Retailer 12
-
$3,529 AUD
$2,479 USD
View
B+
Retailer 13
-
$3,712 AUD
$2,607 USD
View
B+
Retailer 14
-
$3,808 AUD
SGD 3,615 SGD
View
Retailer 15
-
$4,562 AUD
£2,523 GBP
View
Price last confirmed 13 days ago
Retailer 16
-
$5,232 AUD
$3,675 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21640937A · Oct 30
$6,406 AUD
$4,500 USD
View
16 more retailers have this diamond
Prices start from $1,052 AUDSave up to $5,354 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
1.89ct Cushion
$1,052 AUD