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Cushion|Lab Grown|GIA

2.90ct D IF Cushion Lab Grown Diamond

ID • D/IF • GIA 1509303535

Certificate GIA 1509303535

Diamond specifications and retailer prices

From $2,756 AUD
$1,938 USD
As of October 27, 2026
Save $12,103 AUD (81%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $14,859 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.9ct lab-grown cushion diamond

This 2.9ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1509303535. Listed at 5 retailers as of October 27, 2026, with prices from $2,756 to $14,859, a $12,103 spread on the same certified stone. Brilliant Earth lists it at $14,859. 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

2.90
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1509303535
Dimensions8.15 × 7.94 × 5.43 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
An additional inscription is present. This is a man-made diamond.
Key to symbols
Minor Details of Polish
Top View
8.15 mm7.94 mm2.90 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1509303535
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.5%

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 27
Current: $14,859 AUD|Low: $2,006 AUD|High: $14,859 AUD|Avg: $7,798 AUD|+27.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 25, 2026
Retailer 5$2,756 AUD
Retailer 4$6,523 AUD
Retailer 3$8,097 AUD
Retailer 2$9,009 AUD
Brilliant Earth$14,859 AUD

21 data points across 5 retailers

5 retailers$2,756 AUD to $14,859 AUD

A+
Cheapest Retailer
-
$2,756 AUD
$1,938 USD
Final sale: no returns
B+
Retailer 2
-
$6,523 AUD
£3,612 GBP
View
B+
Retailer 3
-
$8,097 AUD
ZAR 91,992 ZAR
View
B+
Retailer 4
-
$9,009 AUD
£4,989 GBP
View
Most Expensive
B
Brilliant Earth
11779263Y · Oct 28
$14,859 AUD
$10,450 USD
View
4 more retailers have this diamond
Prices start from $2,756 AUDSave up to $12,103 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+
2.90ct Cushion
$2,756 AUD