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Cushion|Lab Grown|IGI

1.40ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG830620145

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620145

Diamond specifications and retailer prices

From $369 AUD
$259 USD
As of October 30, 2026
Save $2,372 AUD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,740 AUD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.4ct lab-grown cushion diamond

This 1.4ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG830620145 or 830620145. Listed at 11 retailers as of October 30, 2026, with prices from $369 to $2,740, a $2,372 spread on the same certified stone. Helzberg Diamonds lists it at $2,740. 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

1.40
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620145
Dimensions8.29 × 5.58 × 3.76 mm
L/W Ratio1.49
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
8.29 mm5.58 mm1.40 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620145
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
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 30
Current: $2,740 AUD|Low: $369 AUD|High: $2,776 AUD|Avg: $1,163 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$369 AUD
Retailer 8$466 AUD
Retailer 2$671 AUD
Retailer 7$692 AUD
Retailer 5$760 AUD
Retailer 4$768 AUD
Retailer 9$1,079 AUD
Retailer 3$1,333 AUD
Retailer 10$1,385 AUD
Retailer 6$2,705 AUD
Helzberg Diamonds$2,740 AUD

3 data points across 11 retailers

11 retailers$369 AUD to $2,740 AUD

A
Cheapest Retailer
-
$369 AUD
$259 USD
Final sale: no returns
A
Retailer 2
-
$466 AUD
£258 GBP
View
A
Retailer 3
-
$671 AUD
€449 EUR
View
A
Retailer 4
-
$692 AUD
$486 USD
View
A
Retailer 5
-
$760 AUD
$534 USD
View
A
Retailer 6
-
$768 AUD
£425 GBP
View
B+
Retailer 7
-
$1,079 AUD
$758 USD
View
B+
Retailer 8
-
$1,333 AUD
SGD 1,265 SGD
View
B+
Retailer 9
-
$1,385 AUD
$973 USD
View
B
Retailer 10
-
$2,705 AUD
$1,900 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGHKL · Oct 31
$2,740 AUD
$1,925 USD
View
10 more retailers have this diamond
Prices start from $369 AUDSave up to $2,372 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
1.40ct Cushion
$369 AUD