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 $269 USD
As of October 30, 2026
Save $1,661 USD (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,930 USD 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 $269 to $1,930, a $1,661 spread on the same certified stone. Brilliant Earth lists it at $1,930. 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
Dimensions5.30 × 5.30 × 7.55 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.30 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,930 USD|Low: $258 USD|High: $1,930 USD|Avg: $741 USD|+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
Retailer 14
October 30, 2026
Retailer 3$269 USD
Retailer 6$312 USD
Retailer 4$334 USD
Retailer 2$354 USD
Retailer 10$495 USD
Retailer 5$553 USD
Retailer 9$573 USD
Retailer 12$594 USD
Retailer 7$639 USD
Retailer 8$812 USD
Retailer 14$847 USD
Retailer 11$1,340 USD
Retailer 13$1,485 USD
Brilliant Earth$1,930 USD

34 data points across 14 retailers

25 retailers$269 USD to $1,930 USD

A
Cheapest Retailer
-
$269 USD
A
Retailer 2
-
$301 USD
View
Final sale: no returns
A
Retailer 3
-
$312 USD
View
A
Retailer 4
-
$334 USD
View
A
Retailer 5
-
$334 USD
View
A
Retailer 6
-
$354 USD
£279 GBP
View
B+
Retailer 7
-
$495 USD
View
B+
Retailer 8
-
$553 USD
View
A
Retailer 9
-
$573 USD
ZAR 9,263 ZAR
View
B+
Retailer 10
-
$584 USD
View
Retailer 11
-
$594 USD
€566 EUR
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$639 USD
£503 GBP
View
Retailer 13
-
$734 USD
A$1,130 AUD
View
Price last confirmed 119 days ago
B+
Retailer 14
-
$792 USD
View
B+
Retailer 15
-
$812 USD
A$1,249 AUD
View
B
Retailer 16
-
$847 USD
View
B
Retailer 17
-
$1,073 USD
View
B
Retailer 18
-
$1,124 USD
View
B
Retailer 19
-
$1,277 USD
View
B
Retailer 20
-
$1,295 USD
£1,020 GBP
View
B
Retailer 21
-
$1,340 USD
£1,055 GBP
View
B
Retailer 22
-
$1,414 USD
View
Retailer 23
-
$1,485 USD
View
Price last confirmed 9 days ago
Retailer 24
-
$1,488 USD
View
Price last confirmed 60 days ago
Most Expensive
B
Brilliant Earth
20005272A · Oct 29
$1,930 USD
View
24 more retailers have this diamond
Prices start from $269 USDSave up to $1,661 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
1.21ct Radiant
$269 USD