Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG825656718

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825656718

Diamond specifications and retailer prices

From $255 USD
As of October 30, 2026
Save $1,155 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,410 USD at Brilliant Earth · As of September 28, 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 LG825656718 or 825656718. Listed at 21 retailers as of October 29, 2026, with a 453% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825656718
Dimensions6.44 × 6.46 × 3.93 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
6.44 mm6.46 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825656718
Side View
Table 60.0%Crown 35.5°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.9%

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: $1,410 USD|Low: $255 USD|High: $1,410 USD|Avg: $730 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 14$255 USD
Retailer 9$398 USD
Retailer 2$457 USD
Retailer 13$473 USD
Retailer 8$474 USD
Retailer 12$485 USD
Retailer 7$526 USD
Retailer 3$613 USD
Retailer 10$911 USD
Retailer 4$960 USD
Retailer 6$990 USD
Retailer 5$1,185 USD
Retailer 11$1,282 USD
Brilliant Earth$1,410 USD

27 data points across 14 retailers

21 retailers$255 USD to $1,410 USD

Retailer 1
-
$238 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$255 USD
View
Final sale: no returns
Retailer 3
-
$276 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$295 USD
View
Price last confirmed 18 days ago
Retailer 5
-
$295 USD
View
Price last confirmed 27 days ago
A
Retailer 6
-
$398 USD
View
A
Retailer 7
-
$457 USD
£360 GBP
View
A
Retailer 8
-
$473 USD
View
A
Retailer 9
-
$474 USD
€451 EUR
View
A
Retailer 10
-
$485 USD
ZAR 7,835 ZAR
View
A
Retailer 11
-
$526 USD
£414 GBP
View
B+
Retailer 12
-
$613 USD
View
B
Retailer 13
-
$911 USD
View
Retailer 14
-
$949 USD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$960 USD
View
B+
Retailer 16
-
$990 USD
View
B
Retailer 17
-
$1,185 USD
£933 GBP
View
B
Retailer 18
-
$1,282 USD
View
B
Retailer 19
-
$1,410 USD
View
Retailer 20
-
$1,410 USD
View
Price last confirmed 31 days ago
Most Expensive
Brilliant Earth
21583972A · Sep 28
$1,410 USD
View
Price last confirmed 31 days ago
20 more retailers have this diamond
Prices start from $255 USDSave up to $1,155 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
$255 USD