Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816624108

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

Certificate IGI LG816624108

Diamond specifications and retailer prices

From $364 USD
As of October 30, 2026
Save $1,596 USD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,960 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct 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 LG816624108 or 816624108. Listed at 13 retailers as of October 30, 2026, with prices from $364 to $1,960, a $1,596 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

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624108
Dimensions5.94 × 5.76 × 3.74 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
5.94 mm5.76 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624108
Side View
Table 62.0%Crown 36.3°Girdle: MED-STKPavilion 38.3°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: $1,960 USD|Low: $267 USD|High: $2,600 USD|Avg: $975 USD|-24.6%
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
October 30, 2026
Retailer 11$364 USD
Retailer 5$416 USD
Retailer 10$584 USD
Retailer 3$590 USD
Retailer 12$653 USD
Retailer 6$658 USD
Retailer 8$694 USD
Retailer 2$720 USD
Retailer 4$1,330 USD
Retailer 13$1,343 USD
Retailer 9$1,595 USD
Retailer 7$1,627 USD
Brilliant Earth$1,960 USD

35 data points across 13 retailers

13 retailers$364 USD to $1,960 USD

A
Cheapest Retailer
-
$364 USD
Final sale: no returns
Retailer 2
-
$416 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$584 USD
View
A
Retailer 4
-
$590 USD
View
A
Retailer 5
-
$653 USD
View
A
Retailer 6
-
$658 USD
€627 EUR
View
A
Retailer 7
-
$694 USD
ZAR 11,209 ZAR
View
A
Retailer 8
-
$720 USD
£567 GBP
View
Retailer 9
-
$1,330 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
$1,343 USD
View
B
Retailer 11
-
$1,595 USD
View
B+
Retailer 12
-
$1,627 USD
£1,281 GBP
View
Most Expensive
B
Brilliant Earth
21018360A · Oct 30
$1,960 USD
View
12 more retailers have this diamond
Prices start from $364 USDSave up to $1,596 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
1.00ct Cushion
$364 USD