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Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818663209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818663209

Diamond specifications and retailer prices

From $251 USD
As of October 30, 2026
Save $1,159 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,410 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1ct lab-grown round diamond

This 1ct lab-grown round 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 LG818663209 or 818663209. Listed at 21 retailers as of October 29, 2026, with prices from $251 to $1,410, a $1,159 spread on the same certified stone. Brilliant Earth lists it at $1,410. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663209
Dimensions6.48 × 6.42 × 3.93 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.48 mm6.42 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663209
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.1%

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: $1,410 USD|Low: $189 USD|High: $1,410 USD|Avg: $726 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11$251 USD
Retailer 6$392 USD
Retailer 5$466 USD
Retailer 10$472 USD
Retailer 9$478 USD
Retailer 2$516 USD
Retailer 12$602 USD
Retailer 7$897 USD
Retailer 3$946 USD
Retailer 4$1,189 USD
Retailer 8$1,271 USD
Brilliant Earth$1,410 USD

33 data points across 12 retailers

21 retailers$251 USD to $1,410 USD

Retailer 1
-
$236 USD
Price last confirmed 20 days ago
Retailer 2
-
$238 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$251 USD
View
Final sale: no returns
Retailer 4
-
$274 USD
View
Price last confirmed 21 days ago
Retailer 5
-
$276 USD
View
Price last confirmed 42 days ago
Retailer 6
-
$291 USD
View
Price last confirmed 35 days ago
Retailer 7
-
$293 USD
View
Price last confirmed 18 days ago
Retailer 8
-
$293 USD
View
Price last confirmed 28 days ago
A
Retailer 9
-
$392 USD
View
A
Retailer 10
-
$466 USD
€444 EUR
View
A
Retailer 11
-
$472 USD
View
A
Retailer 12
-
$478 USD
ZAR 7,716 ZAR
View
A
Retailer 13
-
$516 USD
£406 GBP
View
B+
Retailer 14
-
$602 USD
View
B
Retailer 15
-
$897 USD
View
Retailer 16
-
$942 USD
View
Price last confirmed 30 days ago
B+
Retailer 17
-
$946 USD
View
Retailer 18
-
$949 USD
View
Price last confirmed 33 days ago
Retailer 19
-
$1,189 USD
£936 GBP
View
Price last confirmed 19 days ago
B
Retailer 20
-
$1,271 USD
View
Most Expensive
B
Brilliant Earth
21242403A · Oct 29
$1,410 USD
View
20 more retailers have this diamond
Prices start from $251 USDSave up to $1,159 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
1.00ct Round
$251 USD