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Cushion|Lab Grown|IGI

1.05ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG818657598

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG818657598

Diamond specifications and retailer prices

From $449 SGD
$351 USD
As of October 30, 2026
Save $1,904 SGD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,352 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818657598 or 818657598. Listed at 14 retailers as of October 30, 2026, with prices from $449 to $2,352, a $1,904 spread on the same certified stone. Brilliant Earth lists it at $2,352. 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

1.05
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657598
Dimensions6.15 × 5.99 × 3.89 mm
L/W Ratio1.03
Girdle conditionFaceted
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
6.15 mm5.99 mm1.05 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657598
Side View
Table 61.0%Crown 34.7°Girdle: THN-STKPavilion 42.2°Culet: NoneDepth 64.9%

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: $2,352 SGD|Low: $359 SGD|High: $2,736 SGD|Avg: $1,258 SGD|-14.0%
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
October 31, 2026
Retailer 12$449 SGD
Retailer 6$550 SGD
Retailer 8$754 SGD
Retailer 2$808 SGD
Retailer 13$809 SGD
Retailer 11$817 SGD
Retailer 9$855 SGD
Retailer 7$880 SGD
Retailer 3$900 SGD
Retailer 14$1,659 SGD
Retailer 5$1,713 SGD
Retailer 10$1,991 SGD
Retailer 4$2,148 SGD
Brilliant Earth$2,352 SGD

35 data points across 14 retailers

14 retailers$449 SGD to $2,352 SGD

A
Cheapest Retailer
-
$449 SGD
$351 USD
Final sale: no returns
Retailer 2
-
$550 SGD
$430 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$754 SGD
$590 USD
View
A
Retailer 4
-
$808 SGD
€602 EUR
View
A
Retailer 5
-
$809 SGD
$633 USD
View
A
Retailer 6
-
$817 SGD
$639 USD
View
A
Retailer 7
-
$855 SGD
ZAR 10,806 ZAR
View
A
Retailer 8
-
$880 SGD
£542 GBP
View
A
Retailer 9
-
$900 SGD
$704 USD
View
B
Retailer 10
-
$1,659 SGD
$1,297 USD
View
Retailer 11
-
$1,713 SGD
$1,340 USD
View
Price last confirmed 13 days ago
B
Retailer 12
-
$1,991 SGD
$1,557 USD
View
B
Retailer 13
-
$2,148 SGD
£1,323 GBP
View
Most Expensive
B
Brilliant Earth
21241761A · Oct 31
$2,352 SGD
$1,840 USD
View
13 more retailers have this diamond
Prices start from $449 SGDSave up to $1,904 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
1.05ct Cushion
$449 SGD