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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG800677028

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

Certificate IGI LG800677028

Diamond specifications and retailer prices

From $588 AUD
£325 GBP
As of October 29, 2026
Save $3,180 AUD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,768 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 LG800677028 or 800677028. Listed at 12 retailers as of October 28, 2026, with prices from $588 to $3,768, a $3,180 spread on the same certified stone. Brilliant Earth lists it at $3,768. 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 angle36.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677028
Dimensions5.97 × 5.77 × 3.89 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
5.97 mm5.77 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677028
Side View
Table 61.0%Crown 36.9°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,768 AUD|Low: $585 AUD|High: $4,038 AUD|Avg: $1,619 AUD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 5$588 AUD
Retailer 3$681 AUD
Retailer 12$683 AUD
Retailer 7$728 AUD
Retailer 9$843 AUD
Retailer 4$887 AUD
Retailer 2$972 AUD
Retailer 11$1,927 AUD
Retailer 6$1,999 AUD
Retailer 10$2,277 AUD
Retailer 8$3,683 AUD
Brilliant Earth$3,768 AUD

28 data points across 12 retailers

12 retailers$588 AUD to $3,768 AUD

A+
Cheapest Retailer
-
$588 AUD
£325 GBP
A
Retailer 2
-
$681 AUD
$479 USD
View
A
Retailer 3
-
$683 AUD
$480 USD
View
A
Retailer 4
-
$728 AUD
$512 USD
View
A
Retailer 5
-
$843 AUD
$593 USD
View
A
Retailer 6
-
$887 AUD
$624 USD
View
A
Retailer 7
-
$972 AUD
€651 EUR
View
B+
Retailer 8
-
$1,927 AUD
$1,355 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$1,999 AUD
$1,406 USD
View
B+
Retailer 10
-
$2,277 AUD
£1,261 GBP
View
B
Retailer 11
-
$3,683 AUD
$2,590 USD
View
Most Expensive
B
Brilliant Earth
20497229Y · Oct 28
$3,768 AUD
$2,650 USD
View
11 more retailers have this diamond
Prices start from $588 AUDSave up to $3,180 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
$588 AUD