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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 $929 SGD
$727 USD
As of November 2, 2026
Save $2,688 SGD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,618 SGD at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from $929 to $3,618, a $2,688 spread on the same certified stone. Brilliant Earth lists it at $3,618. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,618 SGD|Low: $892 SGD|High: $4,168 SGD|Avg: $1,864 SGD|-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$929 SGD
Retailer 7$977 SGD
Retailer 2$1,111 SGD
Retailer 4$1,113 SGD
Retailer 9$1,446 SGD
Retailer 10$2,020 SGD
Retailer 6$2,075 SGD
Retailer 3$2,396 SGD
Retailer 5$3,017 SGD
Brilliant Earth$3,618 SGD

42 data points across 10 retailers

11 retailers$929 SGD to $3,618 SGD

A
Cheapest Retailer
-
$929 SGD
$727 USD
A
Retailer 2
-
$977 SGD
$764 USD
View
A
Retailer 3
-
$1,111 SGD
£684 GBP
View
A
Retailer 4
-
$1,113 SGD
€829 EUR
View
B+
Retailer 5
-
$1,446 SGD
$1,131 USD
View
B+
Retailer 6
-
$2,020 SGD
$1,580 USD
View
Retailer 7
-
$2,075 SGD
A$2,497 AUD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
$2,396 SGD
£1,476 GBP
View
B
Retailer 9
-
$2,625 SGD
$2,053 USD
View
Retailer 10
-
$3,017 SGD
$2,360 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
18098969A · Oct 31
$3,618 SGD
$2,830 USD
View
10 more retailers have this diamond
Prices start from $929 SGDSave up to $2,688 SGD

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
$929 SGD