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Cushion|Lab Grown|IGI

3.05ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836616559

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

Certificate IGI LG836616559

Diamond specifications and retailer prices

From $3,018 AUD
$2,115 USD
As of November 2, 2026
Save $11,137 AUD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,155 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836616559 or 836616559. Listed at 16 retailers as of November 2, 2026, with prices from $3,018 to $14,155, a $11,137 spread on the same certified stone. Brilliant Earth lists it at $14,155. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836616559
Dimensions8.25 × 8.23 × 5.17 mm
L/W Ratio1.00
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
8.25 mm8.23 mm3.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836616559
Side View
Table 65.0%Crown 33.4°Girdle: MED-THKPavilion 34.2°Culet: NoneDepth 62.8%

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: Nov 2
Current: $14,155 AUD|Low: $3,018 AUD|High: $14,155 AUD|Avg: $7,367 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
Retailer 15
Retailer 16
November 2, 2026
Retailer 12$3,018 AUD
Retailer 16$3,218 AUD
Retailer 9$3,500 AUD
Retailer 10$4,172 AUD
Retailer 14$4,473 AUD
Retailer 7$4,616 AUD
Retailer 2$5,311 AUD
Retailer 15$6,089 AUD
Retailer 13$6,831 AUD
Retailer 8$7,670 AUD
Retailer 11$8,401 AUD
Retailer 6$10,314 AUD
Retailer 5$11,229 AUD
Retailer 4$12,301 AUD
Retailer 3$13,931 AUD
Brilliant Earth$14,155 AUD

8 data points across 16 retailers

16 retailers$3,018 AUD to $14,155 AUD

A
Cheapest Retailer
-
$3,018 AUD
$2,115 USD
A
Retailer 2
-
$3,218 AUD
$2,255 USD
View
Final sale: no returns
A
Retailer 3
-
$3,500 AUD
£1,931 GBP
View
A
Retailer 4
-
$4,172 AUD
£2,302 GBP
View
A
Retailer 5
-
$4,473 AUD
$3,135 USD
View
A
Retailer 6
-
$4,616 AUD
$3,235 USD
View
A
Retailer 7
-
$5,311 AUD
€3,545 EUR
View
B+
Retailer 8
-
$6,089 AUD
£3,360 GBP
View
B+
Retailer 9
-
$6,831 AUD
ZAR 77,340 ZAR
View
B+
Retailer 10
-
$7,670 AUD
$5,375 USD
View
B+
Retailer 11
-
$8,401 AUD
£4,636 GBP
View
B
Retailer 12
-
$10,314 AUD
$7,228 USD
View
B
Retailer 13
-
$11,229 AUD
SGD 10,634 SGD
View
B
Retailer 14
-
$12,301 AUD
$8,621 USD
View
B
Retailer 15
-
$13,931 AUD
$9,763 USD
View
Most Expensive
B
Brilliant Earth
22310909A · Nov 2
$14,155 AUD
$9,920 USD
View
15 more retailers have this diamond
Prices start from $3,018 AUDSave up to $11,137 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
3.05ct Cushion
$3,018 AUD