CaratHunter
Plans
Radiant|Lab Grown|IGI

1.22ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG660420878

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

Certificate IGI LG660420878

Diamond specifications and retailer prices

From €259 EUR
$289 USD
As of October 30, 2026
Save €1,487 EUR (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,745 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG660420878 or 660420878. Listed at 19 retailers as of October 30, 2026, with prices from €259 to €1,745, a €1,487 spread on the same certified stone. Brilliant Earth lists it at €1,745. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.8°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660420878
Dimensions7.62 × 5.20 × 3.39 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.62 mm5.20 mm1.22 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660420878
Side View
Table 64.0%Crown 47.8°Girdle: Slightly ThickPavilion 33.3°Culet: NoneDepth 65.2%

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 30
Current: €1,745 EUR|Low: €249 EUR|High: €1,799 EUR|Avg: €812 EUR|-3.0%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 17€259 EUR
Retailer 6€290 EUR
Retailer 4€301 EUR
Retailer 18€321 EUR
Retailer 13€341 EUR
Retailer 3€355 EUR
Retailer 9€449 EUR
Retailer 14€461 EUR
Retailer 2€505 EUR
Retailer 12€568 EUR
Retailer 10€740 EUR
Retailer 8€1,031 EUR
Retailer 11€1,076 EUR
Retailer 5€1,172 EUR
Retailer 15€1,288 EUR
Retailer 19€1,323 EUR
Retailer 16€1,329 EUR
Retailer 7€1,577 EUR
Brilliant Earth€1,745 EUR

41 data points across 19 retailers

19 retailers€259 EUR to €1,745 EUR

A
Cheapest Retailer
-
€259 EUR
$289 USD
A
Retailer 2
-
€290 EUR
$324 USD
View
Final sale: no returns
A
Retailer 3
-
€301 EUR
$336 USD
View
A
Retailer 4
-
€321 EUR
$359 USD
View
A
Retailer 5
-
€341 EUR
£300 GBP
View
A
Retailer 6
-
€355 EUR
HK$3,100 HKD
View
A
Retailer 7
-
€449 EUR
$502 USD
View
A
Retailer 8
-
€461 EUR
$515 USD
View
A
Retailer 9
-
€505 EUR
View
A
Retailer 10
-
€568 EUR
£500 GBP
View
B+
Retailer 11
-
€740 EUR
$827 USD
View
B+
Retailer 12
-
€1,031 EUR
SGD 1,556 SGD
View
B+
Retailer 13
-
€1,076 EUR
$1,202 USD
View
B
Retailer 14
-
€1,196 EUR
$1,336 USD
View
B+
Retailer 15
-
€1,288 EUR
£1,133 GBP
View
B
Retailer 16
-
€1,323 EUR
$1,479 USD
View
Retailer 17
-
€1,329 EUR
$1,485 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
€1,577 EUR
$1,762 USD
View
Most Expensive
B
Brilliant Earth
14347199A · Oct 31
€1,745 EUR
$1,950 USD
View
18 more retailers have this diamond
Prices start from €259 EURSave up to €1,487 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
1.22ct Radiant
€259 EUR