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 $254 USD
As of November 2, 2026
Save $1,502 USD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,756 USD 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 $254 to $1,756, a $1,502 spread on the same certified stone. Helzberg Diamonds lists it at $1,756. 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
Color
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: $1,756 USD|Low: $254 USD|High: $1,756 USD|Avg: $802 USD
Helzberg Diamonds
Retailer 2
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 18
November 2, 2026
Retailer 15$254 USD
Retailer 17$316 USD
Retailer 5$358 USD
Retailer 13$369 USD
Retailer 9$425 USD
Retailer 18$475 USD
Retailer 16$518 USD
Retailer 11$545 USD
Retailer 2$602 USD
Retailer 3$653 USD
Retailer 14$969 USD
Retailer 4$1,014 USD
Retailer 10$1,035 USD
Retailer 8$1,066 USD
Retailer 7$1,241 USD
Retailer 12$1,265 USD
Retailer 6$1,300 USD
Helzberg Diamonds$1,756 USD

6 data points across 18 retailers

19 retailers$254 USD to $1,756 USD

A
Cheapest Retailer
-
$254 USD
A
Retailer 2
-
$316 USD
View
A
Retailer 3
-
$358 USD
HK$2,800 HKD
View
A
Retailer 4
-
$369 USD
£290 GBP
View
B+
Retailer 5
-
$425 USD
View
A
Retailer 6
-
$475 USD
View
A
Retailer 7
-
$518 USD
View
A
Retailer 8
-
$545 USD
ZAR 8,802 ZAR
View
A
Retailer 9
-
$602 USD
£474 GBP
View
A
Retailer 10
-
$653 USD
View
B+
Retailer 11
-
$969 USD
View
B+
Retailer 12
-
$1,014 USD
View
B
Retailer 13
-
$1,035 USD
SGD 1,399 SGD
View
B
Retailer 14
-
$1,066 USD
View
B
Retailer 15
-
$1,241 USD
View
B
Retailer 16
-
$1,265 USD
£996 GBP
View
B
Retailer 17
-
$1,300 USD
View
B
Retailer 18
-
$1,660 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOLGMJGJNH · Nov 1
$1,756 USD
View
18 more retailers have this diamond
Prices start from $254 USDSave up to $1,502 USD

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
$254 USD