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Cushion|Lab Grown|IGI

1.70ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG750524534

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG750524534

Diamond specifications and retailer prices

From $663 AUD
$466 USD
As of October 30, 2026
Save $3,935 AUD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,598 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.7ct lab-grown cushion diamond

This 1.7ct 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 LG750524534 or 750524534. Listed at 10 retailers as of October 30, 2026, with prices from $663 to $4,598, a $3,935 spread on the same certified stone. Brilliant Earth lists it at $4,598. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750524534
Dimensions8.67 × 5.81 × 3.97 mm
L/W Ratio1.49
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
8.67 mm5.81 mm1.70 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750524534
Side View
Table 57.0%Crown 34.5°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 68.3%

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: $4,598 AUD|Low: $474 AUD|High: $6,506 AUD|Avg: $2,490 AUD|-29.3%
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
October 30, 2026
Retailer 15$663 AUD
Retailer 13$992 AUD
Retailer 12$995 AUD
Retailer 9$997 AUD
Retailer 2$1,587 AUD
Retailer 4$1,615 AUD
Retailer 11$1,639 AUD
Retailer 10$1,871 AUD
Retailer 7$2,393 AUD
Retailer 8$2,685 AUD
Retailer 5$2,929 AUD
Retailer 3$3,000 AUD
Retailer 6$3,438 AUD
Retailer 14$4,442 AUD
Brilliant Earth$4,598 AUD

23 data points across 15 retailers

10 retailers$663 AUD to $4,598 AUD

A
Cheapest Retailer
-
$663 AUD
$466 USD
Final sale: no returns
A
Retailer 2
-
$992 AUD
$697 USD
View
A
Retailer 3
-
$995 AUD
$699 USD
View
A
Retailer 4
-
$997 AUD
$700 USD
View
A
Retailer 5
-
$1,587 AUD
View
A
Retailer 6
-
$1,639 AUD
$1,151 USD
View
A
Retailer 7
-
$1,871 AUD
$1,315 USD
View
B+
Retailer 8
-
$2,685 AUD
£1,485 GBP
View
B
Retailer 9
-
$4,442 AUD
$3,120 USD
View
Most Expensive
B
Brilliant Earth
21406205Y · Oct 30
$4,598 AUD
$3,230 USD
View
9 more retailers have this diamond
Prices start from $663 AUDSave up to $3,935 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
1.70ct Cushion
$663 AUD