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Round|Lab Grown|IGI

1.22ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG492113518

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492113518

Diamond specifications and retailer prices

From $530 USD
As of November 5, 2026
Save $4,065 USD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,595 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.22ct lab-grown round diamond

This 1.22ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492113518 or 492113518. Listed at 13 retailers as of November 5, 2026, with prices from $530 to $4,595, a $4,065 spread on the same certified stone. MOH London lists it at $4,595. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492113518
Dimensions6.91 × 6.88 × 4.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.91 mm6.88 mm1.22 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492113518
Side View
Table 56.5%Crown 33.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

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 5
Current: $4,595 USD|Low: $530 USD|High: $4,669 USD|Avg: $2,158 USD|-0.2%
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
Retailer 14
November 5, 2026
Retailer 9$530 USD
Retailer 8$1,391 USD
Retailer 14$1,513 USD
Retailer 13$1,557 USD
Retailer 10$1,613 USD
Retailer 12$1,613 USD
Retailer 4$1,785 USD
Retailer 2$2,098 USD
Retailer 5$2,192 USD
Retailer 11$2,546 USD
Retailer 7$2,755 USD
Retailer 6$2,927 USD
Retailer 3$3,023 USD
MOH London$4,595 USD

43 data points across 14 retailers

13 retailers$530 USD to $4,595 USD

A
Cheapest Retailer
-
$530 USD
B+
Retailer 2
-
$1,391 USD
View
B+
Retailer 3
-
$1,513 USD
View
B+
Retailer 4
-
$1,557 USD
View
Final sale: no returns
Retailer 5
-
$1,613 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,613 USD
View
B
Retailer 7
-
$1,785 USD
View
B+
Retailer 8
-
$2,098 USD
View
B
Retailer 9
-
$2,546 USD
View
Retailer 10
-
$2,755 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$2,927 USD
View
B
Retailer 12
-
$3,023 USD
View
Most Expensive
B
MOH London
LG492113518 · Nov 5
$4,595 USD
£3,618 GBP
View
12 more retailers have this diamond
Prices start from $530 USDSave up to $4,065 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
1.22ct Round
$530 USD