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Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG840634995

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840634995

Diamond specifications and retailer prices

From $217 USD
As of October 29, 2026
Save $1,589 USD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,806 USD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

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 LG840634995 or 840634995. Listed at 21 retailers as of October 29, 2026, with prices from $217 to $1,806, a $1,589 spread on the same certified stone. Helzberg Diamonds lists it at $1,806. 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 LG840634995
Dimensions6.39 × 6.44 × 3.92 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
6.39 mm6.44 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634995
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°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 29
Current: $1,806 USD|Low: $217 USD|High: $1,806 USD|Avg: $685 USD
Helzberg Diamonds
Retailer 2
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Retailer 21
October 30, 2026
Retailer 6$217 USD
Retailer 3$243 USD
Retailer 20$252 USD
Retailer 11$269 USD
Retailer 18$269 USD
Retailer 13$436 USD
Retailer 16$455 USD
Retailer 4$462 USD
Retailer 17$463 USD
Retailer 7$469 USD
Retailer 15$499 USD
Retailer 10$503 USD
Retailer 9$732 USD
Retailer 12$866 USD
Retailer 5$869 USD
Retailer 8$919 USD
Retailer 21$930 USD
Retailer 14$990 USD
Retailer 19$1,081 USD
Retailer 2$1,240 USD
Helzberg Diamonds$1,806 USD

12 data points across 21 retailers

21 retailers$217 USD to $1,806 USD

A
Cheapest Retailer
-
$217 USD
A
Retailer 2
-
$243 USD
View
Final sale: no returns
A
Retailer 3
-
$252 USD
View
A
Retailer 4
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$269 USD
View
A
Retailer 5
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$269 USD
View
A
Retailer 6
-
$436 USD
£343 GBP
View
A
Retailer 7
-
$455 USD
€433 EUR
View
A
Retailer 8
-
$462 USD
View
A
Retailer 9
-
$463 USD
ZAR 7,477 ZAR
View
A
Retailer 10
-
$469 USD
View
A
Retailer 11
-
$499 USD
£393 GBP
View
A
Retailer 12
-
$503 USD
View
B+
Retailer 13
-
$732 USD
SGD 989 SGD
View
B+
Retailer 14
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$866 USD
View
B+
Retailer 15
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$869 USD
View
B+
Retailer 16
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$919 USD
View
B+
Retailer 17
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$930 USD
View
B
Retailer 18
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$990 USD
View
B
Retailer 19
-
$1,081 USD
£851 GBP
View
B
Retailer 20
-
$1,240 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKPPL · Oct 30
$1,806 USD
View
20 more retailers have this diamond
Prices start from $217 USDSave up to $1,589 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
$217 USD