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Marquise|Lab Grown|IGI

1.40ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG508156143

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG508156143

Diamond specifications and retailer prices

From $1,672 NZD
As of November 4, 2026
Save $2,158 NZD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,753 NZD at Friendly Diamonds · As of November 4, 2026
View at Friendly Diamonds

About this 1.4ct lab-grown marquise diamond

This 1.4ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508156143 or 508156143. Listed at 15 retailers as of November 4, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156143
Dimensions11.08 × 6.12 × 3.54 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.08 mm6.12 mm1.40 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508156143
Side View
Table 66.0%Crown 33.4°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,729 NZD|Low: $1,672 NZD|High: $7,854 NZD|Avg: $3,715 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9$1,672 NZD
Retailer 10$2,080 NZD
Retailer 3$2,263 NZD
Retailer 4$2,412 NZD
Retailer 11$2,412 NZD
Retailer 6$3,150 NZD
Retailer 5$3,464 NZD
Retailer 12$3,830 NZD
Retailer 7$4,438 NZD
Retailer 2$4,522 NZD
Retailer 8$6,285 NZD
Retailer 1$7,729 NZD

40 data points across 12 retailers

15 retailers$1,672 NZD to $3,830 NZD

B+
Cheapest Retailer
-
$1,672 NZD
B
Retailer 2
-
$2,080 NZD
View
B
Retailer 3
-
$2,263 NZD
View
B
Retailer 4
-
$2,412 NZD
View
Retailer 5
-
$2,412 NZD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$2,722 NZD
View
B
Retailer 7
-
$3,150 NZD
View
B
Retailer 8
-
$3,464 NZD
View
B
Retailer 9
-
$3,830 NZD
View
Retailer 10
-
$4,438 NZD
View
Price under review
Retailer 11
-
$4,522 NZD
View
Price under review
Most Expensive
Friendly Diamonds
3121704 · Nov 4
$4,753 NZD
$2,672 USD
View
Price under review
11 more retailers have this diamond
Prices start from $1,672 NZDSave up to $2,158 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.

B+
1.40ct Marquise
$1,672 NZD