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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 $460 NZD
$259 USD
As of November 1, 2026
Save $2,956 NZD (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,416 NZD at Helzberg Diamonds · As of November 1, 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 14 retailers as of November 1, 2026, with prices from $460 to $3,416, a $2,956 spread on the same certified stone. Helzberg Diamonds lists it at $3,416. 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

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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: Nov 1
Current: $3,416 NZD|Low: $460 NZD|High: $3,460 NZD|Avg: $1,481 NZD
Helzberg Diamonds
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 5$460 NZD
Retailer 9$580 NZD
Retailer 11$836 NZD
Retailer 14$862 NZD
Retailer 2$877 NZD
Retailer 12$947 NZD
Retailer 10$950 NZD
Retailer 3$1,345 NZD
Retailer 6$1,661 NZD
Retailer 4$1,726 NZD
Retailer 8$2,037 NZD
Retailer 7$2,502 NZD
Retailer 13$3,371 NZD
Helzberg Diamonds$3,416 NZD

4 data points across 14 retailers

14 retailers$460 NZD to $3,416 NZD

A
Cheapest Retailer
-
$460 NZD
$259 USD
Final sale: no returns
A
Retailer 2
-
$580 NZD
£257 GBP
View
A
Retailer 3
-
$836 NZD
€449 EUR
View
A
Retailer 4
-
$862 NZD
$486 USD
View
Retailer 5
-
$877 NZD
ZAR 7,986 ZAR
View
A
Retailer 6
-
$947 NZD
$534 USD
View
A
Retailer 7
-
$950 NZD
£421 GBP
View
B+
Retailer 8
-
$1,345 NZD
$758 USD
View
B+
Retailer 9
-
$1,661 NZD
SGD 1,265 SGD
View
B+
Retailer 10
-
$1,726 NZD
$973 USD
View
B
Retailer 11
-
$2,037 NZD
£904 GBP
View
B
Retailer 12
-
$2,502 NZD
$1,410 USD
View
B
Retailer 13
-
$3,371 NZD
$1,900 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGHKL · Nov 1
$3,416 NZD
$1,925 USD
View
13 more retailers have this diamond
Prices start from $460 NZDSave up to $2,956 NZD

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
$460 NZD