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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 $309 AUD
$217 USD
As of October 29, 2026
Save $2,262 AUD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,571 AUD at Helzberg Diamonds · As of November 1, 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 $309 to $2,571, a $2,262 spread on the same certified stone. Helzberg Diamonds lists it at $2,571. 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
Colour
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: $2,571 AUD|Low: $309 AUD|High: $2,571 AUD|Avg: $971 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 6$309 AUD
Retailer 3$346 AUD
Retailer 20$359 AUD
Retailer 11$383 AUD
Retailer 18$383 AUD
Retailer 2$619 AUD
Retailer 16$647 AUD
Retailer 4$658 AUD
Retailer 17$659 AUD
Retailer 7$668 AUD
Retailer 13$710 AUD
Retailer 10$716 AUD
Retailer 9$1,042 AUD
Retailer 12$1,233 AUD
Retailer 5$1,237 AUD
Retailer 8$1,308 AUD
Retailer 21$1,324 AUD
Retailer 14$1,409 AUD
Retailer 19$1,539 AUD
Retailer 15$1,765 AUD
Helzberg Diamonds$2,571 AUD

14 data points across 21 retailers

21 retailers$309 AUD to $2,571 AUD

A
Cheapest Retailer
-
$309 AUD
$217 USD
A
Retailer 2
-
$346 AUD
$243 USD
View
Final sale: no returns
A
Retailer 3
-
$359 AUD
$252 USD
View
A
Retailer 4
-
$383 AUD
$269 USD
View
A
Retailer 5
-
$383 AUD
$269 USD
View
A
Retailer 6
-
$619 AUD
£342 GBP
View
A
Retailer 7
-
$647 AUD
€433 EUR
View
A
Retailer 8
-
$658 AUD
$462 USD
View
A
Retailer 9
-
$659 AUD
ZAR 7,477 ZAR
View
A
Retailer 10
-
$668 AUD
$469 USD
View
A
Retailer 11
-
$710 AUD
£393 GBP
View
A
Retailer 12
-
$716 AUD
$503 USD
View
B+
Retailer 13
-
$1,042 AUD
SGD 989 SGD
View
B+
Retailer 14
-
$1,233 AUD
$866 USD
View
B+
Retailer 15
-
$1,237 AUD
$869 USD
View
B+
Retailer 16
-
$1,308 AUD
$919 USD
View
B+
Retailer 17
-
$1,324 AUD
$930 USD
View
B
Retailer 18
-
$1,409 AUD
$990 USD
View
B
Retailer 19
-
$1,539 AUD
£851 GBP
View
B
Retailer 20
-
$1,765 AUD
$1,240 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKPPL · Nov 1
$2,571 AUD
$1,806 USD
View
20 more retailers have this diamond
Prices start from $309 AUDSave up to $2,262 AUD

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
$309 AUD