Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG799630374

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799630374

Diamond specifications and retailer prices

From $1,888 USD
As of October 30, 2026
Save $4,440 USD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,328 USD at With Clarity · As of October 30, 2026
View at With Clarity

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799630374 or 799630374. Listed at 14 retailers as of October 30, 2026, with prices from $1,888 to $6,328, a $4,440 spread on the same certified stone. With Clarity lists it at $6,328. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799630374
Dimensions11.60 × 5.99 × 3.75 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm5.99 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799630374
Side View
Table 62.0%Crown 36.2°Girdle: Slightly ThickPavilion 40.1°Culet: NoneDepth 62.6%

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: Oct 30
Current: $2,454 USD|Low: $1,738 USD|High: $5,029 USD|Avg: $3,080 USD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11$1,738 USD
Retailer 3$1,888 USD
Retailer 8$2,254 USD
Retailer 1$2,454 USD
Retailer 7$2,485 USD
Retailer 6$2,861 USD
Retailer 4$3,194 USD
Retailer 9$3,290 USD
Retailer 10$3,900 USD
Retailer 2$4,462 USD
Retailer 5$4,990 USD

44 data points across 11 retailers

14 retailers$1,888 USD to $6,328 USD

Retailer 1
-
$1,738 USD
Price last confirmed 18 days ago
B+
Retailer 2
-
$1,888 USD
View
B+
Retailer 3
-
$2,254 USD
A$3,468 AUD
View
B+
Retailer 4
-
$2,454 USD
£1,932 GBP
View
B+
Retailer 5
-
$2,485 USD
View
B+
Retailer 6
-
$2,861 USD
€2,725 EUR
View
B+
Retailer 7
-
$3,194 USD
ZAR 51,605 ZAR
View
B
Retailer 8
-
$3,290 USD
View
B
Retailer 9
-
$3,900 USD
View
B
Retailer 10
-
$4,462 USD
View
B
Retailer 11
-
$4,683 USD
View
B
Retailer 12
-
$4,990 USD
£3,929 GBP
View
B
Retailer 13
-
$6,111 USD
View
Most Expensive
B
With Clarity
799630374 · Oct 30
$6,328 USD
View
13 more retailers have this diamond
Prices start from $1,888 USDSave up to $4,440 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.

B+
1.51ct Marquise
$1,888 USD