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Emerald|Lab Grown|IGI

1.51ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG500149694

Shape and cutting style on the report: Emerald cut

Certificate IGI LG500149694

Diamond specifications and retailer prices

From $1,304 USD
As of October 30, 2026
Save $3,564 USD (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,868 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500149694 or 500149694. Listed at 11 retailers as of October 25, 2026, with prices from $1,304 to $4,868, a $3,564 spread on the same certified stone. MOH London lists it at $4,868. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500149694
Dimensions7.74 × 5.33 × 3.66 mm
L/W Ratio1.45
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.74 mm5.33 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500149694
Side View
Table 63.5%Crown 27.9°Girdle: Slightly ThickPavilion 41.1°Culet: LNGDepth 68.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,868 USD|Low: $1,252 USD|High: $4,920 USD|Avg: $2,286 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 25, 2026
Retailer 2$1,304 USD
Retailer 6$1,340 USD
Retailer 11$1,419 USD
Retailer 12$1,460 USD
Retailer 7$1,513 USD
Retailer 10$1,513 USD
Retailer 3$1,685 USD
Retailer 4$2,084 USD
Retailer 8$2,393 USD
Retailer 13$2,820 USD
Retailer 9$2,836 USD
Retailer 5$4,332 USD
MOH London$4,868 USD

14 data points across 13 retailers

11 retailers$1,304 USD to $4,868 USD

B+
Cheapest Retailer
-
$1,304 USD
B+
Retailer 2
-
$1,340 USD
View
B+
Retailer 3
-
$1,419 USD
View
B
Retailer 4
-
$1,460 USD
View
Final sale: no returns
B
Retailer 5
-
$1,513 USD
View
Retailer 6
-
$1,513 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$1,685 USD
View
B
Retailer 8
-
$2,393 USD
View
B
Retailer 9
-
$2,820 USD
View
B
Retailer 10
-
$2,836 USD
View
Most Expensive
B
MOH London
LG500149694 · Oct 25
$4,868 USD
£3,833 GBP
View
10 more retailers have this diamond
Prices start from $1,304 USDSave up to $3,564 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 Emerald
$1,304 USD