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Round|Lab Grown|IGI

1.01ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818658551

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658551

Diamond specifications and retailer prices

From $256 USD
As of October 28, 2026
Save $1,174 USD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,430 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.01ct lab-grown round diamond

This 1.01ct 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 LG818658551 or 818658551. Listed at 19 retailers as of October 28, 2026, with prices from $256 to $1,430, a $1,174 spread on the same certified stone. Brilliant Earth lists it at $1,430. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658551
Dimensions6.45 × 6.48 × 3.91 mm
L/W Ratio1.00
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
6.45 mm6.48 mm1.01 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658551
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.5%

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 28
Current: $534 USD|Low: $256 USD|High: $1,350 USD|Avg: $707 USD|-4.8%
Retailer 1
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 2$256 USD
Retailer 5$298 USD
Retailer 10$402 USD
Retailer 9$462 USD
Retailer 7$476 USD
Retailer 14$481 USD
Retailer 13$489 USD
Retailer 1$534 USD
Retailer 3$619 USD
Retailer 11$919 USD
Retailer 4$968 USD
Retailer 6$1,000 USD
Retailer 8$1,147 USD
Retailer 12$1,288 USD

28 data points across 14 retailers

19 retailers$256 USD to $1,430 USD

A
Retailer 1
-
$240 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$256 USD
View
Final sale: no returns
A
Retailer 3
-
$279 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$298 USD
View
A
Retailer 5
-
$298 USD
View
Price last confirmed 27 days ago
A
Retailer 6
-
$402 USD
View
A
Retailer 7
-
$462 USD
£364 GBP
View
A
Retailer 8
-
$476 USD
€453 EUR
View
A
Retailer 9
-
$481 USD
View
A
Retailer 10
-
$489 USD
ZAR 7,904 ZAR
View
A
Retailer 11
-
$534 USD
£420 GBP
View
B+
Retailer 12
-
$619 USD
View
B
Retailer 13
-
$919 USD
View
B+
Retailer 14
-
$957 USD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
$968 USD
View
B+
Retailer 16
-
$1,000 USD
View
B+
Retailer 17
-
$1,147 USD
£903 GBP
View
B
Retailer 18
-
$1,288 USD
View
Most Expensive
B
Brilliant Earth
21694463A · Oct 29
$1,430 USD
View
18 more retailers have this diamond
Prices start from $256 USDSave up to $1,174 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
1.01ct Round
$256 USD