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Cushion|Lab Grown|IGI

1.58ct E IF Cushion Lab Grown Diamond

GD • E/IF • IGI LG782690947

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG782690947

Diamond specifications and retailer prices

From $1,037 AUD
$727 USD
As of November 2, 2026
Save $3,001 AUD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,038 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.58ct lab-grown cushion diamond

This 1.58ct 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 standard cut grade and certified by IGI LG782690947 or 782690947. Listed at 11 retailers as of November 2, 2026, with prices from $1,037 to $4,038, a $3,001 spread on the same certified stone. Brilliant Earth lists it at $4,038. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.58
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782690947
Dimensions6.63 × 6.63 × 4.54 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
6.63 mm6.63 mm1.58 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782690947
Side View
Table 63.0%Crown 35.9°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 68.5%

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: Nov 2
Current: $4,038 AUD|Low: $996 AUD|High: $4,652 AUD|Avg: $2,080 AUD|-12.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8$1,037 AUD
Retailer 7$1,090 AUD
Retailer 2$1,240 AUD
Retailer 4$1,242 AUD
Retailer 9$1,614 AUD
Retailer 10$2,254 AUD
Retailer 6$2,316 AUD
Retailer 3$2,675 AUD
Retailer 5$3,367 AUD
Brilliant Earth$4,038 AUD

42 data points across 10 retailers

11 retailers$1,037 AUD to $4,038 AUD

A
Cheapest Retailer
-
$1,037 AUD
$727 USD
A
Retailer 2
-
$1,090 AUD
$764 USD
View
A
Retailer 3
-
$1,240 AUD
£684 GBP
View
A
Retailer 4
-
$1,242 AUD
€829 EUR
View
B+
Retailer 5
-
$1,614 AUD
$1,131 USD
View
B+
Retailer 6
-
$2,254 AUD
$1,580 USD
View
Retailer 7
-
$2,316 AUD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
$2,675 AUD
£1,476 GBP
View
B
Retailer 9
-
$2,929 AUD
$2,053 USD
View
Retailer 10
-
$3,367 AUD
$2,360 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
18098969A · Nov 2
$4,038 AUD
$2,830 USD
View
10 more retailers have this diamond
Prices start from $1,037 AUDSave up to $3,001 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
1.58ct Cushion
$1,037 AUD