Emerald|Lab Grown|IGI

1.22ct G SI2 Emerald Lab Grown Diamond

ID • G/SI2 • IGI LG508138559

Shape and cutting style on the report: Emerald cut

Certificate IGI LG508138559

Diamond specifications and retailer prices

From $636 USD
As of October 30, 2026
Save $1,437 USD (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,123 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.22ct lab-grown emerald diamond

This 1.22ct lab-grown emerald sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508138559 or 508138559. Listed at 11 retailers as of October 30, 2026, with a 226% 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

1.22
Carat
G
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.5°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508138559
Dimensions7.59 × 4.97 × 3.23 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
7.59 mm4.97 mm1.22 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508138559
Side View
Table 66.5%Crown 27.5°Girdle: MediumPavilion 37.6°Culet: LNGDepth 65.0%

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: $3,123 USD|Low: $507 USD|High: $3,143 USD|Avg: $1,212 USD|+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 31, 2026
Retailer 6$636 USD
Retailer 11$692 USD
Retailer 4$700 USD
Retailer 3$711 USD
Retailer 7$737 USD
Retailer 10$737 USD
Retailer 2$1,168 USD
Retailer 8$1,206 USD
Retailer 5$1,884 USD
Retailer 9$2,073 USD
MOH London$3,123 USD

43 data points across 11 retailers

11 retailers$636 USD to $2,073 USD

B+
Cheapest Retailer
-
$636 USD
B+
Retailer 2
-
$692 USD
View
B+
Retailer 3
-
$700 USD
View
B+
Retailer 4
-
$711 USD
View
Final sale: no returns
Retailer 5
-
$737 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$737 USD
View
B
Retailer 7
-
$1,168 USD
£920 GBP
View
B
Retailer 8
-
$1,206 USD
View
B
Retailer 9
-
$1,884 USD
View
B
Retailer 10
-
$2,073 USD
View
Most Expensive
MOH London
LG508138559 · Oct 29
$3,123 USD
£2,459 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $636 USDSave up to $1,437 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+
1.22ct Emerald
$636 USD