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Cushion|Lab Grown|IGI

1.13ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818667583

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818667583

Diamond specifications and retailer prices

From $423 USD
As of October 28, 2026
Save $1,537 USD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,960 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.13ct lab-grown cushion diamond

This 1.13ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818667583 or 818667583. Listed at 16 retailers as of October 28, 2026, with prices from $423 to $1,960, a $1,537 spread on the same certified stone. Brilliant Earth lists it at $1,960. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.13
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818667583
Dimensions7.73 × 5.16 × 3.44 mm
L/W Ratio1.50
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
7.73 mm5.16 mm1.13 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818667583
Side View
Table 65.0%Crown 35.8°Girdle: MED-STKPavilion 34.7°Culet: NoneDepth 66.7%

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: $1,960 USD|Low: $413 USD|High: $2,590 USD|Avg: $1,204 USD|-24.3%
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
October 30, 2026
Retailer 14$423 USD
Retailer 15$458 USD
Retailer 2$473 USD
Retailer 13$690 USD
Retailer 16$725 USD
Retailer 10$729 USD
Retailer 5$731 USD
Retailer 12$787 USD
Retailer 9$826 USD
Retailer 6$1,146 USD
Retailer 4$1,511 USD
Retailer 7$1,593 USD
Retailer 8$1,640 USD
Retailer 3$1,783 USD
Retailer 11$1,798 USD
Brilliant Earth$1,960 USD

27 data points across 16 retailers

16 retailers$423 USD to $1,960 USD

A
Cheapest Retailer
-
$423 USD
Final sale: no returns
A
Retailer 2
-
$458 USD
View
A
Retailer 3
-
$473 USD
£372 GBP
View
A
Retailer 4
-
$690 USD
View
A
Retailer 5
-
$725 USD
View
A
Retailer 6
-
$729 USD
€694 EUR
View
A
Retailer 7
-
$731 USD
View
A
Retailer 8
-
$787 USD
ZAR 12,707 ZAR
View
A
Retailer 9
-
$826 USD
£651 GBP
View
B+
Retailer 10
-
$1,146 USD
View
B+
Retailer 11
-
$1,511 USD
View
B+
Retailer 12
-
$1,593 USD
SGD 2,153 SGD
View
Retailer 13
-
$1,640 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$1,783 USD
£1,404 GBP
View
B+
Retailer 15
-
$1,798 USD
£1,416 GBP
View
Most Expensive
B
Brilliant Earth
21418193A · Oct 30
$1,960 USD
View
15 more retailers have this diamond
Prices start from $423 USDSave up to $1,537 USD

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
1.13ct Cushion
$423 USD