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Cushion|Lab Grown|IGI

3.00ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG731590309

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG731590309

Diamond specifications and retailer prices

From $809 AUD
$568 USD
As of October 30, 2026
Save $3,113 AUD (79%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,997 AUD at Brilliant Earth · As of October 10, 2026
View at Brilliant Earth

About this 3ct lab-grown cushion diamond

This 3ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG731590309 or 731590309. Listed at 23 retailers as of October 30, 2026, with a 385% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.00
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731590309
Dimensions10.59 × 6.82 × 4.55 mm
L/W Ratio1.55
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.59 mm6.82 mm3.00 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731590309
Side View
Table 66.0%Crown 39°Girdle: STK-VTKPavilion 31.5°Culet: NoneDepth 66.7%

Caratlytics Score

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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: $8,997 AUD|Low: $809 AUD|High: $8,997 AUD|Avg: $2,527 AUD
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 6$809 AUD
Retailer 3$897 AUD
Retailer 21$984 AUD
Retailer 2$1,032 AUD
Retailer 22$1,203 AUD
Retailer 8$1,297 AUD
Retailer 18$1,375 AUD
Retailer 16$1,494 AUD
Retailer 17$1,894 AUD
Retailer 19$1,947 AUD
Retailer 5$1,966 AUD
Retailer 13$1,969 AUD
Retailer 11$1,992 AUD
Retailer 12$2,603 AUD
Retailer 10$2,839 AUD
Retailer 14$2,919 AUD
Retailer 7$3,098 AUD
Retailer 9$3,343 AUD
Retailer 4$3,471 AUD
Retailer 20$3,748 AUD
Retailer 15$3,943 AUD
Brilliant Earth$8,997 AUD

35 data points across 22 retailers

23 retailers$809 AUD to $3,922 AUD

A
Cheapest Retailer
-
$809 AUD
$568 USD
Final sale: no returns
Retailer 2
-
$897 AUD
$630 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$984 AUD
HK$5,400 HKD
View
A
Retailer 4
-
$1,032 AUD
$725 USD
View
B+
Retailer 5
-
$1,203 AUD
$845 USD
View
A
Retailer 6
-
$1,297 AUD
$911 USD
View
A
Retailer 7
-
$1,375 AUD
€920 EUR
View
A
Retailer 8
-
$1,494 AUD
£826 GBP
View
A
Retailer 9
-
$1,894 AUD
View
A
Retailer 10
-
$1,947 AUD
ZAR 22,092 ZAR
View
A
Retailer 11
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$1,966 AUD
$1,381 USD
View
A
Retailer 12
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$1,969 AUD
$1,383 USD
View
A
Retailer 13
-
$1,992 AUD
$1,399 USD
View
B+
Retailer 14
-
$2,603 AUD
£1,440 GBP
View
B+
Retailer 15
-
$2,839 AUD
SGD 2,695 SGD
View
B+
Retailer 16
-
$2,919 AUD
$2,050 USD
View
B+
Retailer 17
-
$3,098 AUD
$2,176 USD
View
B+
Retailer 18
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$3,150 AUD
$2,213 USD
View
B+
Retailer 19
-
$3,343 AUD
$2,348 USD
View
Retailer 20
-
$3,471 AUD
View
Price last confirmed 26 days ago
B+
Retailer 21
-
$3,748 AUD
£2,073 GBP
View
B
Retailer 22
-
$3,922 AUD
$2,755 USD
View
Most Expensive
Brilliant Earth
15621530A · Oct 10
$8,997 AUD
$6,320 USD
View
Price last confirmed 20 days ago
22 more retailers have this diamond
Prices start from $809 AUDSave up to $3,113 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
3.00ct Cushion
$809 AUD