Emerald|Lab Grown|IGI

1.51ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG499108039

Shape and cutting style on the report: Emerald cut

Certificate IGI LG499108039

Diamond specifications and retailer prices

From €752 EUR
$840 USD
As of October 31, 2026
Save €1,787 EUR (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,374 EUR at MOH London · As of October 21, 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 LG499108039 or 499108039. Listed at 10 retailers as of October 31, 2026, with a 238% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
Crown angle23.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499108039
Dimensions8.18 × 5.34 × 3.37 mm
L/W Ratio1.53
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
8.18 mm5.34 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG499108039
Side View
Table 65.0%Crown 23.7°Girdle: Slightly ThickPavilion 40.9°Culet: LNGDepth 63.1%

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: Oct 31
Current: €4,374 EUR|Low: €752 EUR|High: €4,404 EUR|Avg: €1,931 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2€752 EUR
Retailer 4€1,167 EUR
Retailer 9€1,270 EUR
Retailer 5€1,354 EUR
Retailer 8€1,354 EUR
Retailer 11€1,508 EUR
Retailer 3€1,865 EUR
Retailer 6€2,142 EUR
Retailer 10€2,524 EUR
Retailer 7€2,538 EUR
MOH London€4,374 EUR

14 data points across 11 retailers

10 retailers€752 EUR to €2,538 EUR

A
Cheapest Retailer
-
€752 EUR
$840 USD
B
Retailer 2
-
€1,167 EUR
$1,304 USD
View
B
Retailer 3
-
€1,270 EUR
$1,419 USD
View
Retailer 4
-
€1,354 EUR
$1,513 USD
View
Price last confirmed 19 days ago
B
Retailer 5
-
€1,354 EUR
$1,513 USD
View
B
Retailer 6
-
€1,508 EUR
$1,685 USD
View
B
Retailer 7
-
€2,142 EUR
$2,393 USD
View
B
Retailer 8
-
€2,524 EUR
$2,820 USD
View
B
Retailer 9
-
€2,538 EUR
$2,836 USD
View
Most Expensive
MOH London
LG499108039 · Oct 21
€4,374 EUR
£3,848 GBP
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from €752 EURSave up to €1,787 EUR

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 Emerald
€752 EUR