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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816612563

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

Certificate IGI LG816612563

Diamond specifications and retailer prices

From $518 AUD
$364 USD
As of October 30, 2026
Save $2,272 AUD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,790 AUD at Brilliant Earth · As of October 31, 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 LG816612563 or 816612563. Listed at 13 retailers as of October 30, 2026, with prices from $518 to $2,790, a $2,272 spread on the same certified stone. Brilliant Earth lists it at $2,790. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816612563
Dimensions6.01 × 5.86 × 3.77 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
6.01 mm5.86 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816612563
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 64.3%

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: $2,790 AUD|Low: $380 AUD|High: $3,815 AUD|Avg: $1,490 AUD|-26.9%
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
November 1, 2026
Retailer 11$518 AUD
Retailer 5$592 AUD
Retailer 10$831 AUD
Retailer 3$840 AUD
Retailer 12$930 AUD
Retailer 7$930 AUD
Retailer 8$988 AUD
Retailer 6$1,019 AUD
Retailer 4$1,893 AUD
Retailer 13$1,911 AUD
Retailer 9$2,270 AUD
Retailer 2$2,303 AUD
Brilliant Earth$2,790 AUD

36 data points across 13 retailers

13 retailers$518 AUD to $2,790 AUD

A
Cheapest Retailer
-
$518 AUD
$364 USD
Final sale: no returns
Retailer 2
-
$592 AUD
$416 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$831 AUD
$584 USD
View
A
Retailer 4
-
$840 AUD
$590 USD
View
A
Retailer 5
-
$930 AUD
$653 USD
View
A
Retailer 6
-
$930 AUD
€622 EUR
View
A
Retailer 7
-
$988 AUD
ZAR 11,209 ZAR
View
A
Retailer 8
-
$1,019 AUD
£564 GBP
View
Retailer 9
-
$1,893 AUD
$1,330 USD
View
Price last confirmed 13 days ago
B
Retailer 10
-
$1,911 AUD
$1,343 USD
View
B
Retailer 11
-
$2,270 AUD
$1,595 USD
View
B+
Retailer 12
-
$2,303 AUD
£1,274 GBP
View
Most Expensive
B
Brilliant Earth
21018661A · Oct 31
$2,790 AUD
$1,960 USD
View
12 more retailers have this diamond
Prices start from $518 AUDSave up to $2,272 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
1.00ct Cushion
$518 AUD