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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG825655920

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

Certificate IGI LG825655920

Diamond specifications and retailer prices

From $572 AUD
$402 USD
As of October 30, 2026
Save $2,759 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,331 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 very-good cut grade and certified by IGI LG825655920 or 825655920. Listed at 14 retailers as of October 30, 2026, with prices from $572 to $3,331, a $2,759 spread on the same certified stone. Brilliant Earth lists it at $3,331. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655920
Dimensions5.87 × 5.81 × 3.87 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
5.87 mm5.81 mm1.00 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655920
Side View
Table 61.0%Crown 35°Girdle: MED-THKPavilion 40°Culet: NoneDepth 66.6%

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 30
Current: $3,331 AUD|Low: $572 AUD|High: $3,701 AUD|Avg: $1,455 AUD|-10.0%
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
November 1, 2026
Retailer 14$572 AUD
Retailer 6$639 AUD
Retailer 8$655 AUD
Retailer 13$847 AUD
Retailer 12$854 AUD
Retailer 3$1,015 AUD
Retailer 7$1,019 AUD
Retailer 10$1,090 AUD
Retailer 2$1,143 AUD
Retailer 5$1,893 AUD
Retailer 4$2,097 AUD
Retailer 11$2,423 AUD
Retailer 9$2,491 AUD
Brilliant Earth$3,331 AUD

33 data points across 14 retailers

14 retailers$572 AUD to $3,331 AUD

A
Cheapest Retailer
-
$572 AUD
$402 USD
Final sale: no returns
Retailer 2
-
$639 AUD
$449 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$655 AUD
£362 GBP
View
A
Retailer 4
-
$847 AUD
$595 USD
View
A
Retailer 5
-
$854 AUD
$600 USD
View
A
Retailer 6
-
$1,015 AUD
$713 USD
View
A
Retailer 7
-
$1,019 AUD
€682 EUR
View
A
Retailer 8
-
$1,090 AUD
ZAR 12,369 ZAR
View
B+
Retailer 9
-
$1,143 AUD
£632 GBP
View
Retailer 10
-
$1,893 AUD
$1,330 USD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$2,097 AUD
$1,473 USD
View
B
Retailer 12
-
$2,423 AUD
$1,702 USD
View
B
Retailer 13
-
$2,491 AUD
£1,378 GBP
View
Most Expensive
B
Brilliant Earth
21581004A · Oct 31
$3,331 AUD
$2,340 USD
View
13 more retailers have this diamond
Prices start from $572 AUDSave up to $2,759 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
$572 AUD