CaratHunter
Plans
Heart|Lab Grown|IGI

1.00ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG818663207

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818663207

Diamond specifications and retailer prices

From $345 AUD
$242 USD
As of October 30, 2026
Save $1,434 AUD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,778 AUD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663207 or 818663207. Listed at 17 retailers as of October 30, 2026, with prices from $345 to $1,778, a $1,434 spread on the same certified stone. Reve Diamonds lists it at $1,778. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663207
Dimensions6.91 × 6.21 × 3.92 mm
L/W Ratio1.11
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
6.91 mm6.21 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663207
Side View
Table 59.0%Crown 36.6°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 56.7%

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 30
Current: $712 AUD|Low: $255 AUD|High: $1,846 AUD|Avg: $958 AUD|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 1, 2026
Retailer 10$345 AUD
Retailer 5$541 AUD
Retailer 6$659 AUD
Retailer 1$712 AUD
Retailer 7$793 AUD
Retailer 9$827 AUD
Retailer 8$938 AUD
Retailer 3$989 AUD
Retailer 2$1,309 AUD
Retailer 4$1,546 AUD
Reve Diamonds$1,778 AUD

33 data points across 11 retailers

17 retailers$345 AUD to $1,778 AUD

Retailer 1
-
$313 AUD
$220 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$345 AUD
$242 USD
View
Final sale: no returns
Retailer 3
-
$363 AUD
$255 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$389 AUD
$273 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$389 AUD
$273 USD
View
Price last confirmed 20 days ago
Retailer 6
-
$394 AUD
$277 USD
View
Price last confirmed 37 days ago
A
Retailer 7
-
$541 AUD
$380 USD
View
A
Retailer 8
-
$659 AUD
ZAR 7,482 ZAR
View
A
Retailer 9
-
$712 AUD
£394 GBP
View
B+
Retailer 10
-
$793 AUD
$557 USD
View
B+
Retailer 11
-
$827 AUD
$581 USD
View
B+
Retailer 12
-
$938 AUD
View
B+
Retailer 13
-
$989 AUD
$695 USD
View
Retailer 14
-
$1,248 AUD
$877 USD
View
Price last confirmed 31 days ago
B
Retailer 15
-
$1,309 AUD
$920 USD
View
B
Retailer 16
-
$1,546 AUD
£855 GBP
View
Most Expensive
B
Reve Diamonds
4F0886E3F · Nov 1
$1,778 AUD
$1,249 USD
View
16 more retailers have this diamond
Prices start from $345 AUDSave up to $1,434 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 Heart
$345 AUD