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Cushion|Lab Grown|IGI

1.89ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG839647791

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647791

Diamond specifications and retailer prices

From $863 AUD
$606 USD
As of October 27, 2026
Save $6,212 AUD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,074 AUD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839647791 or 839647791. Listed at 19 retailers as of October 27, 2026, with prices from $863 to $7,074, a $6,212 spread on the same certified stone. Brilliant Earth lists it at $7,074. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647791
Dimensions8.72 × 6.26 × 3.95 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.72 mm6.26 mm1.89 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647791
Side View
Table 66.0%Crown 33.6°Girdle: MED-THKPavilion 32.8°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $7,074 AUD|Low: $863 AUD|High: $7,074 AUD|Avg: $2,600 AUD
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
Retailer 19
October 29, 2026
Retailer 9$863 AUD
Retailer 3$989 AUD
Retailer 17$1,039 AUD
Retailer 6$1,153 AUD
Retailer 2$1,385 AUD
Retailer 4$1,476 AUD
Retailer 14$1,480 AUD
Retailer 16$1,628 AUD
Retailer 18$2,239 AUD
Retailer 8$2,287 AUD
Retailer 5$2,777 AUD
Retailer 13$2,988 AUD
Retailer 7$3,077 AUD
Retailer 11$3,103 AUD
Retailer 10$3,250 AUD
Retailer 15$3,995 AUD
Retailer 12$4,149 AUD
Retailer 19$4,149 AUD
Brilliant Earth$7,074 AUD

23 data points across 19 retailers

19 retailers$863 AUD to $7,074 AUD

A
Cheapest Retailer
-
$863 AUD
$606 USD
Final sale: no returns
Retailer 2
-
$989 AUD
£547 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,039 AUD
HK$5,700 HKD
View
A
Retailer 4
-
$1,153 AUD
$810 USD
View
A
Retailer 5
-
$1,385 AUD
€927 EUR
View
A
Retailer 6
-
$1,476 AUD
$1,037 USD
View
A
Retailer 7
-
$1,480 AUD
£819 GBP
View
A
Retailer 8
-
$1,628 AUD
ZAR 18,478 ZAR
View
Retailer 9
-
$2,239 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$2,287 AUD
$1,607 USD
View
B+
Retailer 11
-
$2,777 AUD
£1,536 GBP
View
B+
Retailer 12
-
$2,988 AUD
SGD 2,837 SGD
View
B+
Retailer 13
-
$3,077 AUD
$2,162 USD
View
B+
Retailer 14
-
$3,103 AUD
$2,180 USD
View
B+
Retailer 15
-
$3,250 AUD
$2,283 USD
View
B+
Retailer 16
-
$3,995 AUD
£2,210 GBP
View
B+
Retailer 17
-
$4,149 AUD
$2,915 USD
View
B+
Retailer 18
-
$4,149 AUD
$2,915 USD
View
Most Expensive
B
Brilliant Earth
21808108A · Oct 29
$7,074 AUD
$4,970 USD
View
18 more retailers have this diamond
Prices start from $863 AUDSave up to $6,212 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
$863 AUD