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Radiant|Lab Grown|IGI

1.05ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG816615690

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

Certificate IGI LG816615690

Diamond specifications and retailer prices

From $288 USD
£227 GBP
As of October 29, 2026
Save $1,912 USD (87%) vs most expensive(unlock to see where)
8 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 LG816615690 or 816615690. Listed at 8 retailers as of October 29, 2026, with prices from $288 to $2,200, a $1,912 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 angle24.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615690
Dimensions6.96 × 5.10 × 3.38 mm
L/W Ratio1.36
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
6.96 mm5.10 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615690
Side View
Table 64.0%Crown 24.7°Girdle: Slightly ThickPavilion 35.4°Culet: NoneDepth 66.3%

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 29
Current: $2,200 USD|Low: $246 USD|High: $2,290 USD|Avg: $990 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
Retailer 15
October 29, 2026
Retailer 5$246 USD
Retailer 2$288 USD
Retailer 10$426 USD
Retailer 3$580 USD
Retailer 15$633 USD
Retailer 6$637 USD
Retailer 14$660 USD
Retailer 9$791 USD
Retailer 13$932 USD
Retailer 4$1,076 USD
Retailer 11$1,086 USD
Retailer 7$1,277 USD
Retailer 8$1,900 USD
Retailer 12$1,975 USD
Brilliant Earth$2,200 USD

19 data points across 15 retailers

8 retailers$288 USD to $2,200 USD

A
Cheapest Retailer
-
$288 USD
£227 GBP
A
Retailer 2
-
$426 USD
View
B+
Retailer 3
-
$791 USD
View
B+
Retailer 4
-
$932 USD
View
B+
Retailer 5
-
$1,086 USD
£855 GBP
View
B
Retailer 6
-
$1,900 USD
View
Retailer 7
-
$1,975 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21730922Y · Oct 29
$2,200 USD
View
7 more retailers have this diamond
Prices start from $288 USDSave up to $1,912 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
$288 USD