Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG847678795

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847678795

Diamond specifications and retailer prices

From $602 USD
HK$4,700 HKD
As of October 30, 2026
Save $1,179 USD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,781 USD at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

About this 1.51ct lab-grown marquise diamond

This 1.51ct 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 LG847678795 or 847678795. Listed at 7 retailers as of October 29, 2026, with prices from $602 to $1,781, a $1,179 spread on the same certified stone. Taylor and Hart lists it at $1,781. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847678795
Dimensions11.87 × 5.95 × 3.65 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.87 mm5.95 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847678795
Side View
Table 65.0%Crown 33.8°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 61.3%

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: $782 USD|Low: $602 USD|High: $1,781 USD|Avg: $1,154 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 30, 2026
Retailer 6$602 USD
Retailer 1$782 USD
Retailer 2$855 USD
Retailer 3$898 USD
Retailer 4$1,064 USD
Retailer 5$1,766 USD
Taylor and Hart$1,781 USD

2 data points across 7 retailers

7 retailers$602 USD to $1,781 USD

A
Cheapest Retailer
-
$602 USD
HK$4,700 HKD
A
Retailer 2
-
$782 USD
View
A
Retailer 3
-
$855 USD
View
A
Retailer 4
-
$898 USD
£707 GBP
View
A
Retailer 5
-
$1,064 USD
View
B+
Retailer 6
-
$1,766 USD
View
Most Expensive
B+
Taylor and Hart
EX8MJOS · Oct 29
$1,781 USD
View
6 more retailers have this diamond
Prices start from $602 USDSave up to $1,179 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
1.51ct Marquise
$602 USD