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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG818663200

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

Certificate IGI LG818663200

Diamond specifications and retailer prices

From $587 AUD
$413 USD
As of October 28, 2026
Save $3,223 AUD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,811 AUD at Brilliant Earth · As of October 28, 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 LG818663200 or 818663200. Listed at 14 retailers as of October 28, 2026, with prices from $587 to $3,811, a $3,223 spread on the same certified stone. Brilliant Earth lists it at $3,811. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663200
Dimensions5.98 × 5.93 × 3.83 mm
L/W Ratio1.01
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
5.98 mm5.93 mm1.03 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663200
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 64.6%

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 28
Current: $3,811 AUD|Low: $422 AUD|High: $3,811 AUD|Avg: $1,474 AUD
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 29, 2026
Retailer 12$587 AUD
Retailer 6$655 AUD
Retailer 11$890 AUD
Retailer 4$896 AUD
Retailer 13$1,039 AUD
Retailer 2$1,051 AUD
Retailer 3$1,091 AUD
Retailer 8$1,119 AUD
Retailer 10$1,170 AUD
Retailer 5$1,948 AUD
Retailer 14$2,149 AUD
Retailer 9$2,465 AUD
Retailer 7$2,557 AUD
Brilliant Earth$3,811 AUD

34 data points across 14 retailers

14 retailers$587 AUD to $3,811 AUD

A
Cheapest Retailer
-
$587 AUD
$413 USD
Final sale: no returns
A
Retailer 2
-
$655 AUD
$461 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$890 AUD
$626 USD
View
A
Retailer 4
-
$896 AUD
$630 USD
View
A
Retailer 5
-
$1,039 AUD
$731 USD
View
A
Retailer 6
-
$1,051 AUD
€704 EUR
View
A
Retailer 7
-
$1,091 AUD
$767 USD
View
A
Retailer 8
-
$1,119 AUD
ZAR 12,711 ZAR
View
A
Retailer 9
-
$1,170 AUD
£648 GBP
View
B+
Retailer 10
-
$1,948 AUD
$1,370 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$2,149 AUD
$1,511 USD
View
B
Retailer 12
-
$2,465 AUD
$1,734 USD
View
B+
Retailer 13
-
$2,557 AUD
£1,416 GBP
View
Most Expensive
B
Brilliant Earth
21242362A · Oct 28
$3,811 AUD
$2,680 USD
View
13 more retailers have this diamond
Prices start from $587 AUDSave up to $3,223 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
$587 AUD