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Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG840634566

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840634566

Diamond specifications and retailer prices

From $300 AUD
$210 USD
As of October 30, 2026
Save $1,227 AUD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,527 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840634566 or 840634566. Listed at 19 retailers as of October 30, 2026, with prices from $300 to $1,527, a $1,227 spread on the same certified stone. Brilliant Earth lists it at $1,527. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634566
Dimensions6.73 × 7.32 × 4.20 mm
L/W Ratio1.09
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
6.73 mm7.32 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634566
Side View
Table 61.0%Crown 38.2°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 57.4%

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: $1,527 AUD|Low: $300 AUD|High: $1,540 AUD|Avg: $841 AUD
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 11$300 AUD
Retailer 5$337 AUD
Retailer 4$348 AUD
Retailer 9$372 AUD
Retailer 18$372 AUD
Retailer 13$456 AUD
Retailer 15$626 AUD
Retailer 2$643 AUD
Retailer 14$688 AUD
Retailer 19$721 AUD
Retailer 3$819 AUD
Retailer 17$910 AUD
Retailer 16$960 AUD
Retailer 8$1,197 AUD
Retailer 7$1,211 AUD
Retailer 10$1,270 AUD
Retailer 6$1,273 AUD
Retailer 12$1,491 AUD
Brilliant Earth$1,527 AUD

17 data points across 19 retailers

19 retailers$300 AUD to $1,527 AUD

A
Cheapest Retailer
-
$300 AUD
$210 USD
A
Retailer 2
-
$337 AUD
$236 USD
View
Final sale: no returns
A
Retailer 3
-
$348 AUD
$244 USD
View
Retailer 4
-
$372 AUD
$261 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$372 AUD
$261 USD
View
A
Retailer 6
-
$456 AUD
£252 GBP
View
A
Retailer 7
-
$626 AUD
€418 EUR
View
A
Retailer 8
-
$643 AUD
ZAR 7,279 ZAR
View
A
Retailer 9
-
$688 AUD
£380 GBP
View
B+
Retailer 10
-
$721 AUD
$505 USD
View
B+
Retailer 11
-
$819 AUD
$574 USD
View
B+
Retailer 12
-
$910 AUD
View
B+
Retailer 13
-
$960 AUD
$673 USD
View
B
Retailer 14
-
$1,197 AUD
$839 USD
View
B
Retailer 15
-
$1,211 AUD
SGD 1,147 SGD
View
B
Retailer 16
-
$1,270 AUD
$890 USD
View
B
Retailer 17
-
$1,273 AUD
$892 USD
View
B
Retailer 18
-
$1,491 AUD
£823 GBP
View
Most Expensive
B
Brilliant Earth
22143047A · Oct 31
$1,527 AUD
$1,070 USD
View
18 more retailers have this diamond
Prices start from $300 AUDSave up to $1,227 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
1.23ct Heart
$300 AUD