Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG800679051

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800679051

Diamond specifications and retailer prices

From $870 USD
HK$6,800 HKD
As of November 1, 2026
Save $2,414 USD (73%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,284 USD at MOH London · As of November 1, 2026
View at MOH London

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 LG800679051 or 800679051. Listed at 12 retailers as of November 1, 2026, with prices from $870 to $3,284, a $2,414 spread on the same certified stone. MOH London lists it at $3,284. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679051
Dimensions11.89 × 5.99 × 3.77 mm
L/W Ratio1.98
Girdle conditionFaceted
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
11.89 mm5.99 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679051
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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 1
Current: $3,284 USD|Low: $866 USD|High: $3,329 USD|Avg: $1,934 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7$870 USD
Retailer 9$1,070 USD
Retailer 11$1,123 USD
Retailer 6$1,161 USD
Retailer 2$1,175 USD
Retailer 10$1,279 USD
Retailer 12$1,794 USD
Retailer 4$2,446 USD
Retailer 8$2,452 USD
Retailer 3$2,596 USD
Retailer 5$2,630 USD
MOH London$3,284 USD

41 data points across 12 retailers

12 retailers$870 USD to $3,284 USD

A
Cheapest Retailer
-
$870 USD
HK$6,800 HKD
A
Retailer 2
-
$1,070 USD
View
A
Retailer 3
-
$1,123 USD
View
A
Retailer 4
-
$1,161 USD
€1,106 EUR
View
A
Retailer 5
-
$1,175 USD
£925 GBP
View
A
Retailer 6
-
$1,279 USD
A$1,968 AUD
View
Retailer 7
-
$1,794 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,446 USD
View
Retailer 9
-
$2,452 USD
A$3,773 AUD
View
Price last confirmed 24 days ago
B+
Retailer 10
-
$2,630 USD
View
B
Retailer 11
-
$2,649 USD
View
Most Expensive
B
MOH London
LG800679051 · Nov 1
$3,284 USD
£2,586 GBP
View
11 more retailers have this diamond
Prices start from $870 USDSave up to $2,414 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
$870 USD