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Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

VG • E/VVS1 • IGI LG831679941

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831679941

Diamond specifications and retailer prices

From $299 AUD
$210 USD
As of October 30, 2026
Save $2,121 AUD (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,420 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 very-good cut grade and certified by IGI LG831679941 or 831679941. Listed at 17 retailers as of October 30, 2026, with prices from $299 to $2,420, a $2,121 spread on the same certified stone. Brilliant Earth lists it at $2,420. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831679941
Dimensions6.69 × 7.78 × 4.00 mm
L/W Ratio1.16
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
6.69 mm7.78 mm1.23 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831679941
Side View
Table 61.0%Crown 31.7°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 51.4%

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: $2,420 AUD|Low: $299 AUD|High: $2,420 AUD|Avg: $918 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
November 1, 2026
Retailer 17$299 AUD
Retailer 8$336 AUD
Retailer 2$347 AUD
Retailer 7$372 AUD
Retailer 12$455 AUD
Retailer 3$638 AUD
Retailer 10$641 AUD
Retailer 14$686 AUD
Retailer 16$719 AUD
Retailer 5$817 AUD
Retailer 13$1,194 AUD
Retailer 15$1,199 AUD
Retailer 9$1,208 AUD
Retailer 4$1,267 AUD
Retailer 6$1,270 AUD
Retailer 11$1,488 AUD
Brilliant Earth$2,420 AUD

4 data points across 17 retailers

17 retailers$299 AUD to $2,420 AUD

A
Cheapest Retailer
-
$299 AUD
$210 USD
A
Retailer 2
-
$336 AUD
$236 USD
View
Final sale: no returns
A
Retailer 3
-
$347 AUD
$244 USD
View
A
Retailer 4
-
$372 AUD
$261 USD
View
A
Retailer 5
-
$455 AUD
£252 GBP
View
B+
Retailer 6
-
$638 AUD
$448 USD
View
B+
Retailer 7
-
$641 AUD
ZAR 7,279 ZAR
View
B+
Retailer 8
-
$686 AUD
£380 GBP
View
B+
Retailer 9
-
$719 AUD
$505 USD
View
B+
Retailer 10
-
$817 AUD
$574 USD
View
B
Retailer 11
-
$1,194 AUD
$839 USD
View
B
Retailer 12
-
$1,199 AUD
$842 USD
View
B
Retailer 13
-
$1,208 AUD
SGD 1,147 SGD
View
B
Retailer 14
-
$1,267 AUD
$890 USD
View
B
Retailer 15
-
$1,270 AUD
$892 USD
View
B
Retailer 16
-
$1,488 AUD
£823 GBP
View
Most Expensive
B
Brilliant Earth
22348803A · Oct 31
$2,420 AUD
$1,700 USD
View
16 more retailers have this diamond
Prices start from $299 AUDSave up to $2,121 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
$299 AUD