CaratHunter
Plans
Cushion|Lab Grown|IGI

1.80ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG840635147

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635147

Diamond specifications and retailer prices

From $515 NZD
$290 USD
As of November 1, 2026
Save $3,551 NZD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,066 NZD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840635147 or 840635147. Listed at 18 retailers as of November 1, 2026, with prices from $515 to $4,066, a $3,551 spread on the same certified stone. Helzberg Diamonds lists it at $4,066. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635147
Dimensions9.02 × 6.19 × 3.85 mm
L/W Ratio1.46
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
9.02 mm6.19 mm1.80 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635147
Side View
Table 61.0%Crown 35.1°Girdle: MED-STKPavilion 34.8°Culet: NoneDepth 62.2%

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: Nov 1
Current: $4,066 NZD|Low: $515 NZD|High: $5,421 NZD|Avg: $1,704 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 4$515 NZD
Retailer 2$604 NZD
Retailer 14$844 NZD
Retailer 8$951 NZD
Retailer 12$987 NZD
Retailer 13$1,013 NZD
Retailer 7$1,059 NZD
Retailer 11$1,083 NZD
Retailer 3$1,329 NZD
Retailer 15$1,440 NZD
Retailer 9$1,500 NZD
Retailer 10$1,928 NZD
Retailer 5$1,985 NZD
Retailer 6$2,046 NZD
Retailer 17$2,302 NZD
Retailer 18$3,119 NZD
Retailer 16$3,519 NZD
Helzberg Diamonds$4,066 NZD

15 data points across 18 retailers

18 retailers$515 NZD to $4,066 NZD

A
Cheapest Retailer
-
$515 NZD
$290 USD
Final sale: no returns
A
Retailer 2
-
$604 NZD
£268 GBP
View
A
Retailer 3
-
$844 NZD
$475 USD
View
B+
Retailer 4
-
$951 NZD
$535 USD
View
A
Retailer 5
-
$987 NZD
ZAR 8,967 ZAR
View
A
Retailer 6
-
$1,013 NZD
€543 EUR
View
A
Retailer 7
-
$1,059 NZD
$596 USD
View
A
Retailer 8
-
$1,083 NZD
£480 GBP
View
A
Retailer 9
-
$1,329 NZD
A$1,150 AUD
View
A
Retailer 10
-
$1,440 NZD
$810 USD
View
A
Retailer 11
-
$1,500 NZD
$844 USD
View
B+
Retailer 12
-
$1,928 NZD
$1,085 USD
View
B+
Retailer 13
-
$1,985 NZD
SGD 1,509 SGD
View
B+
Retailer 14
-
$2,046 NZD
$1,151 USD
View
B+
Retailer 15
-
$2,302 NZD
£1,020 GBP
View
B
Retailer 16
-
$3,119 NZD
$1,755 USD
View
B
Retailer 17
-
$3,519 NZD
$1,980 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLHKN · Nov 1
$4,066 NZD
$2,288 USD
View
17 more retailers have this diamond
Prices start from $515 NZDSave up to $3,551 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
1.80ct Cushion
$515 NZD