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Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

E/IF • IGI LG799649696

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

Certificate IGI LG799649696

Diamond specifications and retailer prices

From €241 EUR
$269 USD
As of October 30, 2026
Save €1,487 EUR (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €1,728 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG799649696 or 799649696. Listed at 25 retailers as of October 29, 2026, with prices from €241 to €1,728, a €1,487 spread on the same certified stone. Brilliant Earth lists it at €1,728. 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

1.21
Carat
E
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799649696
Dimensions7.55 × 5.30 × 3.42 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm5.30 mm1.21 ctE / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799649696
Side View
Table 65.0%Crown 42.7°Girdle: Slightly ThickPavilion 35°Culet: NoneDepth 64.5%

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: €1,728 EUR|Low: €231 EUR|High: €1,728 EUR|Avg: €697 EUR|+0.5%
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
October 31, 2026
Retailer 3€241 EUR
Retailer 4€299 EUR
Retailer 6€317 EUR
Retailer 9€443 EUR
Retailer 5€495 EUR
Retailer 8€513 EUR
Retailer 11€532 EUR
Retailer 2€573 EUR
Retailer 7€727 EUR
Retailer 13€758 EUR
Retailer 10€1,199 EUR
Retailer 12€1,329 EUR
Brilliant Earth€1,728 EUR

34 data points across 13 retailers

25 retailers€241 EUR to €1,728 EUR

A
Cheapest Retailer
-
€241 EUR
$269 USD
A
Retailer 2
-
€269 EUR
$301 USD
View
Final sale: no returns
A
Retailer 3
-
€279 EUR
$312 USD
View
A
Retailer 4
-
€299 EUR
$334 USD
View
A
Retailer 5
-
€299 EUR
$334 USD
View
A
Retailer 6
-
€317 EUR
£279 GBP
View
A
Retailer 7
-
€443 EUR
$495 USD
View
B+
Retailer 8
-
€495 EUR
$553 USD
View
A
Retailer 9
-
€513 EUR
ZAR 9,263 ZAR
View
B+
Retailer 10
-
€523 EUR
$584 USD
View
Retailer 11
-
€532 EUR
View
Price last confirmed 8 days ago
B+
Retailer 12
-
€573 EUR
£504 GBP
View
Retailer 13
-
€657 EUR
A$1,130 AUD
View
Price last confirmed 121 days ago
B+
Retailer 14
-
€709 EUR
$792 USD
View
B+
Retailer 15
-
€727 EUR
A$1,249 AUD
View
B
Retailer 16
-
€758 EUR
$847 USD
View
B
Retailer 17
-
€960 EUR
$1,073 USD
View
B
Retailer 18
-
€1,006 EUR
$1,124 USD
View
B
Retailer 19
-
€1,143 EUR
$1,277 USD
View
B
Retailer 20
-
€1,159 EUR
£1,020 GBP
View
B
Retailer 21
-
€1,199 EUR
£1,055 GBP
View
B
Retailer 22
-
€1,266 EUR
$1,414 USD
View
Retailer 23
-
€1,329 EUR
$1,485 USD
View
Price last confirmed 10 days ago
Retailer 24
-
€1,332 EUR
$1,488 USD
View
Price last confirmed 61 days ago
Most Expensive
B
Brilliant Earth
20005272A · Oct 29
€1,728 EUR
$1,930 USD
View
24 more retailers have this diamond
Prices start from €241 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
1.21ct Radiant
€241 EUR