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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818657595

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

Certificate IGI LG818657595

Diamond specifications and retailer prices

From $579 AUD
$407 USD
As of October 30, 2026
Save $2,766 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,345 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct 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 LG818657595 or 818657595. Listed at 14 retailers as of October 30, 2026, with prices from $579 to $3,345, a $2,766 spread on the same certified stone. Brilliant Earth lists it at $3,345. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657595
Dimensions6.02 × 5.84 × 3.88 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
6.02 mm5.84 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657595
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 66.4%

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: Oct 30
Current: $3,345 AUD|Low: $417 AUD|High: $3,815 AUD|Avg: $1,450 AUD|-12.3%
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
October 30, 2026
Retailer 12$579 AUD
Retailer 6$649 AUD
Retailer 11$890 AUD
Retailer 4$897 AUD
Retailer 13$1,031 AUD
Retailer 7$1,042 AUD
Retailer 3$1,085 AUD
Retailer 9$1,107 AUD
Retailer 2$1,162 AUD
Retailer 5$1,950 AUD
Retailer 14$2,128 AUD
Retailer 10$2,448 AUD
Retailer 8$2,531 AUD
Brilliant Earth$3,345 AUD

37 data points across 14 retailers

14 retailers$579 AUD to $3,345 AUD

A
Cheapest Retailer
-
$579 AUD
$407 USD
Final sale: no returns
Retailer 2
-
$649 AUD
$456 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$890 AUD
$625 USD
View
A
Retailer 4
-
$897 AUD
$630 USD
View
A
Retailer 5
-
$1,031 AUD
$724 USD
View
A
Retailer 6
-
$1,042 AUD
€697 EUR
View
A
Retailer 7
-
$1,085 AUD
$762 USD
View
A
Retailer 8
-
$1,107 AUD
ZAR 12,562 ZAR
View
A
Retailer 9
-
$1,162 AUD
£643 GBP
View
Retailer 10
-
$1,950 AUD
$1,370 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$2,128 AUD
$1,495 USD
View
B
Retailer 12
-
$2,448 AUD
$1,720 USD
View
B+
Retailer 13
-
$2,531 AUD
£1,400 GBP
View
Most Expensive
B
Brilliant Earth
21241770A · Oct 30
$3,345 AUD
$2,350 USD
View
13 more retailers have this diamond
Prices start from $579 AUDSave up to $2,766 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
1.03ct Cushion
$579 AUD