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Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG818662847

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818662847

Diamond specifications and retailer prices

From $251 USD
As of October 30, 2026
Save $1,879 USD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,130 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 LG818662847 or 818662847. Listed at 23 retailers as of October 29, 2026, with prices from $251 to $2,130, a $1,879 spread on the same certified stone. Brilliant Earth lists it at $2,130. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662847
Dimensions6.51 × 6.47 × 3.87 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
6.51 mm6.47 mm1.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662847
Side View
Table 61.0%Crown 33.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 59.6%

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: $2,130 USD|Low: $189 USD|High: $2,130 USD|Avg: $738 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
Retailer 13
Retailer 14
October 30, 2026
Retailer 13$251 USD
Retailer 6$295 USD
Retailer 8$392 USD
Retailer 7$466 USD
Retailer 12$472 USD
Retailer 11$478 USD
Retailer 2$516 USD
Retailer 14$602 USD
Retailer 9$897 USD
Retailer 3$946 USD
Retailer 5$990 USD
Retailer 4$1,176 USD
Retailer 10$1,271 USD
Brilliant Earth$2,130 USD

34 data points across 14 retailers

23 retailers$251 USD to $2,130 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
Retailer 9
-
$294 USD
View
Price last confirmed 48 days ago
A
Retailer 10
-
$392 USD
View
A
Retailer 11
-
$466 USD
€444 EUR
View
A
Retailer 12
-
$472 USD
View
A
Retailer 13
-
$478 USD
ZAR 7,716 ZAR
View
A
Retailer 14
-
$516 USD
£406 GBP
View
B+
Retailer 15
-
$602 USD
View
B
Retailer 16
-
$897 USD
View
Retailer 17
-
$942 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$946 USD
View
Retailer 19
-
$949 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
$990 USD
View
B
Retailer 21
-
$1,176 USD
£926 GBP
View
B
Retailer 22
-
$1,271 USD
View
Most Expensive
B
Brilliant Earth
21242522A · Oct 29
$2,130 USD
View
22 more retailers have this diamond
Prices start from $251 USDSave up to $1,879 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