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Cushion|Lab Grown|IGI

1.75ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG764689718

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG764689718

Diamond specifications and retailer prices

From $544 AUD
$382 USD
As of October 28, 2026
Save $4,225 AUD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,768 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.75ct lab-grown cushion diamond

This 1.75ct 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 LG764689718 or 764689718. Listed at 19 retailers as of October 28, 2026, with prices from $544 to $4,768, a $4,225 spread on the same certified stone. Brilliant Earth lists it at $4,768. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.75
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764689718
Dimensions6.41 × 6.41 × 4.18 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
6.41 mm6.41 mm1.75 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764689718
Side View
Table 61.0%Crown 31.7°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 65.2%

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 28
Current: $4,768 AUD|Low: $544 AUD|High: $4,783 AUD|Avg: $1,828 AUD|-0.3%
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 5$544 AUD
Retailer 2$623 AUD
Retailer 16$911 AUD
Retailer 7$971 AUD
Retailer 11$980 AUD
Retailer 13$1,037 AUD
Retailer 10$1,080 AUD
Retailer 3$1,087 AUD
Retailer 12$1,400 AUD
Retailer 15$1,459 AUD
Retailer 4$1,906 AUD
Retailer 8$1,929 AUD
Retailer 6$2,000 AUD
Retailer 17$2,280 AUD
Retailer 14$2,421 AUD
Retailer 9$2,575 AUD
Brilliant Earth$4,768 AUD

35 data points across 17 retailers

19 retailers$544 AUD to $4,768 AUD

A
Cheapest Retailer
-
$544 AUD
$382 USD
Final sale: no returns
A
Retailer 2
-
$623 AUD
£345 GBP
View
A
Retailer 3
-
$911 AUD
$640 USD
View
A
Retailer 4
-
$971 AUD
$682 USD
View
A
Retailer 5
-
$980 AUD
€656 EUR
View
A
Retailer 6
-
$1,037 AUD
ZAR 11,767 ZAR
View
A
Retailer 7
-
$1,080 AUD
£598 GBP
View
A
Retailer 8
-
$1,087 AUD
$764 USD
View
A
Retailer 9
-
$1,400 AUD
View
A
Retailer 10
-
$1,459 AUD
$1,025 USD
View
A
Retailer 11
-
$1,906 AUD
$1,339 USD
View
A
Retailer 12
-
$1,929 AUD
SGD 1,831 SGD
View
A
Retailer 13
-
$2,000 AUD
$1,405 USD
View
A
Retailer 14
-
$2,124 AUD
$1,492 USD
View
A
Retailer 15
-
$2,280 AUD
$1,602 USD
View
B+
Retailer 16
-
$2,421 AUD
£1,339 GBP
View
Retailer 17
-
$2,575 AUD
View
Price last confirmed 25 days ago
Retailer 18
-
$2,646 AUD
£1,464 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
17358738A · Oct 29
$4,768 AUD
$3,350 USD
View
18 more retailers have this diamond
Prices start from $544 AUDSave up to $4,225 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
1.75ct Cushion
$544 AUD