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Marquise|Lab Grown|IGI

1.50ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG850630371

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850630371

Diamond specifications and retailer prices

From $451 NZD
$254 USD
As of November 2, 2026
Save $2,670 NZD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,121 NZD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG850630371 or 850630371. Listed at 19 retailers as of November 1, 2026, with prices from $451 to $3,121, a $2,670 spread on the same certified stone. Helzberg Diamonds lists it at $3,121. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850630371
Dimensions11.90 × 6.04 × 3.67 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.90 mm6.04 mm1.50 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850630371
Side View
Table 56.0%Crown 30°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.8%

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 2
Current: $3,121 NZD|Low: $451 NZD|High: $3,121 NZD|Avg: $1,425 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 15$451 NZD
Retailer 17$562 NZD
Retailer 5$637 NZD
Retailer 2$655 NZD
Retailer 9$755 NZD
Retailer 18$844 NZD
Retailer 16$921 NZD
Retailer 12$968 NZD
Retailer 11$1,069 NZD
Retailer 3$1,161 NZD
Retailer 14$1,722 NZD
Retailer 4$1,802 NZD
Retailer 10$1,840 NZD
Retailer 8$1,894 NZD
Retailer 7$2,206 NZD
Retailer 13$2,248 NZD
Retailer 6$2,310 NZD
Helzberg Diamonds$3,121 NZD

6 data points across 18 retailers

19 retailers$451 NZD to $3,121 NZD

A
Cheapest Retailer
-
$451 NZD
$254 USD
A
Retailer 2
-
$562 NZD
$316 USD
View
A
Retailer 3
-
$637 NZD
HK$2,800 HKD
View
A
Retailer 4
-
$655 NZD
£290 GBP
View
B+
Retailer 5
-
$755 NZD
$425 USD
View
A
Retailer 6
-
$844 NZD
$475 USD
View
A
Retailer 7
-
$921 NZD
$518 USD
View
A
Retailer 8
-
$968 NZD
ZAR 8,802 ZAR
View
A
Retailer 9
-
$1,069 NZD
£474 GBP
View
A
Retailer 10
-
$1,161 NZD
$653 USD
View
B+
Retailer 11
-
$1,722 NZD
$969 USD
View
B+
Retailer 12
-
$1,802 NZD
$1,014 USD
View
B
Retailer 13
-
$1,840 NZD
SGD 1,399 SGD
View
B
Retailer 14
-
$1,894 NZD
$1,066 USD
View
B
Retailer 15
-
$2,206 NZD
$1,241 USD
View
B
Retailer 16
-
$2,248 NZD
£996 GBP
View
B
Retailer 17
-
$2,310 NZD
$1,300 USD
View
B
Retailer 18
-
$2,950 NZD
$1,660 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOLGMJGJNH · Nov 1
$3,121 NZD
$1,756 USD
View
18 more retailers have this diamond
Prices start from $451 NZDSave up to $2,670 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
1.50ct Marquise
$451 NZD