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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 $1,155 NZD
$650 USD
As of November 1, 2026
Save $4,397 NZD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,553 NZD at MOH London · As of November 1, 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 November 1, 2026, with prices from $1,155 to $5,553, a $4,397 spread on the same certified stone. MOH London lists it at $5,553. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,553 NZD|Low: $990 NZD|High: $5,620 NZD|Avg: $2,234 NZD|-1.0%
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
November 1, 2026
Retailer 12$1,031 NZD
Retailer 4$1,155 NZD
Retailer 11$1,280 NZD
Retailer 2$1,353 NZD
Retailer 3$1,475 NZD
Retailer 7$1,859 NZD
Retailer 5$1,966 NZD
Retailer 6$1,999 NZD
Retailer 9$2,199 NZD
Retailer 8$3,118 NZD
Retailer 13$3,174 NZD
Retailer 10$3,364 NZD
MOH London$5,553 NZD

33 data points across 13 retailers

20 retailers$1,155 NZD to $5,553 NZD

Retailer 1
-
$1,031 NZD
$580 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
$1,155 NZD
$650 USD
View
Final sale: no returns
Retailer 3
-
$1,155 NZD
$650 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$1,280 NZD
$720 USD
View
B+
Retailer 5
-
$1,353 NZD
£599 GBP
View
B+
Retailer 6
-
$1,475 NZD
$830 USD
View
B+
Retailer 7
-
$1,621 NZD
$912 USD
View
B+
Retailer 8
-
$1,859 NZD
€996 EUR
View
B
Retailer 9
-
$1,966 NZD
$1,106 USD
View
B+
Retailer 10
-
$1,999 NZD
£886 GBP
View
B
Retailer 11
-
$2,199 NZD
ZAR 19,984 ZAR
View
B
Retailer 12
-
$3,118 NZD
A$2,699 AUD
View
B
Retailer 13
-
$3,174 NZD
$1,786 USD
View
B
Retailer 14
-
$3,204 NZD
£1,420 GBP
View
Retailer 15
-
$3,364 NZD
$1,893 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$3,711 NZD
£1,644 GBP
View
B
Retailer 17
-
$3,943 NZD
$2,219 USD
View
B
Retailer 18
-
$3,973 NZD
£1,760 GBP
View
B
Retailer 19
-
$4,973 NZD
$2,798 USD
View
Most Expensive
B
MOH London
LG578341098 · Nov 1
$5,553 NZD
£2,460 GBP
View
19 more retailers have this diamond
Prices start from $1,155 NZDSave up to $4,397 NZD

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
$1,155 NZD