Radiant|Lab Grown|IGI

1.22ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG578341098

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG578341098

Diamond specifications and retailer prices

From $650 USD
As of October 30, 2026
Save $2,492 USD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,142 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.22ct lab-grown radiant diamond

This 1.22ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG578341098 or 578341098. Listed at 20 retailers as of October 29, 2026, with prices from $650 to $3,142, a $2,492 spread on the same certified stone. MOH London lists it at $3,142. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.22
Carat
E
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.7°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578341098
Dimensions6.76 × 5.19 × 3.62 mm
L/W Ratio1.30
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.76 mm5.19 mm1.22 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578341098
Side View
Table 68.0%Crown 47.7°Girdle: STK-THKPavilion 30.1°Culet: NoneDepth 69.7%

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: $3,142 USD|Low: $650 USD|High: $3,162 USD|Avg: $1,560 USD|+0.6%
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 30, 2026
Retailer 13$650 USD
Retailer 2$763 USD
Retailer 11$830 USD
Retailer 9$1,044 USD
Retailer 12$1,106 USD
Retailer 6$1,125 USD
Retailer 7$1,237 USD
Retailer 8$1,765 USD
Retailer 10$1,786 USD
Retailer 4$2,088 USD
Retailer 3$2,219 USD
Retailer 5$2,235 USD
MOH London$3,142 USD

43 data points across 13 retailers

20 retailers$650 USD to $3,142 USD

Retailer 1
-
$580 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$650 USD
View
Final sale: no returns
B+
Retailer 3
-
$650 USD
View
B+
Retailer 4
-
$720 USD
View
B+
Retailer 5
-
$763 USD
£601 GBP
View
B+
Retailer 6
-
$830 USD
View
B+
Retailer 7
-
$912 USD
View
B+
Retailer 8
-
$1,044 USD
€994 EUR
View
B
Retailer 9
-
$1,106 USD
View
B+
Retailer 10
-
$1,125 USD
£885 GBP
View
B
Retailer 11
-
$1,237 USD
ZAR 19,984 ZAR
View
Retailer 12
-
$1,765 USD
A$2,715 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$1,786 USD
View
B
Retailer 14
-
$1,803 USD
£1,420 GBP
View
B
Retailer 15
-
$1,893 USD
View
B
Retailer 16
-
$2,088 USD
£1,644 GBP
View
B
Retailer 17
-
$2,219 USD
View
B
Retailer 18
-
$2,235 USD
£1,760 GBP
View
B
Retailer 19
-
$2,798 USD
View
Most Expensive
B
MOH London
LG578341098 · Oct 29
$3,142 USD
£2,474 GBP
View
19 more retailers have this diamond
Prices start from $650 USDSave up to $2,492 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 Radiant
$650 USD