CaratHunter
Plans
Radiant|Lab Grown|IGI

1.05ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG816615880

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

Certificate IGI LG816615880

Diamond specifications and retailer prices

From $426 USD
As of October 28, 2026
Save $1,774 USD (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,200 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615880 or 816615880. Listed at 7 retailers as of October 28, 2026, with prices from $426 to $2,200, a $1,774 spread on the same certified stone. Brilliant Earth lists it at $2,200. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615880
Dimensions7.12 × 4.94 × 3.38 mm
L/W Ratio1.44
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
7.12 mm4.94 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615880
Side View
Table 68.0%Crown 45.7°Girdle: Slightly ThickPavilion 34.8°Culet: NoneDepth 68.4%

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 28
Current: $2,200 USD|Low: $246 USD|High: $2,290 USD|Avg: $1,024 USD|-3.9%
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 29, 2026
Retailer 5$246 USD
Retailer 13$380 USD
Retailer 9$426 USD
Retailer 14$633 USD
Retailer 4$637 USD
Retailer 12$660 USD
Retailer 8$791 USD
Retailer 11$932 USD
Retailer 3$1,076 USD
Retailer 2$1,091 USD
Retailer 6$1,277 USD
Retailer 7$1,900 USD
Retailer 10$1,975 USD
Brilliant Earth$2,200 USD

13 data points across 14 retailers

7 retailers$426 USD to $2,200 USD

A
Cheapest Retailer
-
$426 USD
B+
Retailer 2
-
$791 USD
View
B+
Retailer 3
-
$932 USD
View
B+
Retailer 4
-
$1,091 USD
£859 GBP
View
B
Retailer 5
-
$1,900 USD
View
Retailer 6
-
$1,975 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21731146Y · Oct 29
$2,200 USD
View
6 more retailers have this diamond
Prices start from $426 USDSave up to $1,774 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
1.05ct Radiant
$426 USD