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Marquise|Lab Grown|IGI

1.50ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG621464316

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG621464316

Diamond specifications and retailer prices

From $729 USD
As of October 30, 2026
Save $2,650 USD (78%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,379 USD at With Clarity · As of October 30, 2026
View at With Clarity

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG621464316 or 621464316. Listed at 29 retailers as of October 30, 2026, with prices from $729 to $3,379, a $2,650 spread on the same certified stone. With Clarity lists it at $3,379. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621464316
Dimensions11.74 × 5.98 × 3.74 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
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
11.74 mm5.98 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621464316
Side View
Table 60.0%Crown 35.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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: Oct 30
Current: $729 USD|Low: $585 USD|High: $3,379 USD|Avg: $1,627 USD|+7.4%
Retailer 1
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
Retailer 19
Retailer 20
Retailer 21
With Clarity
October 30, 2026
Retailer 11$585 USD
Retailer 10$725 USD
Retailer 1$729 USD
Retailer 2$832 USD
Retailer 19$855 USD
Retailer 3$937 USD
Retailer 14$1,025 USD
Retailer 9$1,103 USD
Retailer 15$1,113 USD
Retailer 12$1,134 USD
Retailer 18$1,246 USD
Retailer 17$1,273 USD
Retailer 20$1,699 USD
Retailer 13$1,716 USD
Retailer 21$1,800 USD
Retailer 8$2,315 USD
Retailer 7$2,348 USD
Retailer 5$2,422 USD
Retailer 6$2,424 USD
Retailer 4$3,030 USD
Retailer 16$3,166 USD
With Clarity$3,379 USD

33 data points across 22 retailers

29 retailers$729 USD to $3,379 USD

Retailer 1
-
$585 USD
Price last confirmed 22 days ago
Retailer 2
-
$606 USD
View
Price last confirmed 30 days ago
Retailer 3
-
$679 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$725 USD
View
Price last confirmed 22 days ago
Retailer 5
-
$725 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$729 USD
View
Final sale: no returns
Retailer 7
-
$742 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$832 USD
HK$6,500 HKD
View
A
Retailer 9
-
$855 USD
View
A
Retailer 10
-
$937 USD
View
A
Retailer 11
-
$1,025 USD
View
A
Retailer 12
-
$1,103 USD
View
A
Retailer 13
-
$1,113 USD
€1,060 EUR
View
A
Retailer 14
-
$1,134 USD
£893 GBP
View
A
Retailer 15
-
$1,246 USD
ZAR 20,137 ZAR
View
A
Retailer 16
-
$1,273 USD
A$1,958 AUD
View
Retailer 17
-
$1,699 USD
A$2,614 AUD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$1,716 USD
View
B+
Retailer 19
-
$1,800 USD
View
B+
Retailer 20
-
$1,908 USD
View
Retailer 21
-
$1,908 USD
View
Price last confirmed 20 days ago
Retailer 22
-
$1,977 USD
View
Price last confirmed 29 days ago
B+
Retailer 23
-
$2,315 USD
View
B+
Retailer 24
-
$2,348 USD
View
B+
Retailer 25
-
$2,422 USD
View
Retailer 26
-
$2,424 USD
A$3,729 AUD
View
Price last confirmed 21 days ago
Retailer 27
-
$3,030 USD
View
Price last confirmed 15 days ago
B
Retailer 28
-
$3,166 USD
£2,493 GBP
View
Most Expensive
B
With Clarity
621464316 · Oct 30
$3,379 USD
View
28 more retailers have this diamond
Prices start from $729 USDSave up to $2,650 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
$729 USD