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Heart|Lab Grown|IGI

1.23ct E VS1 Heart Lab Grown Diamond

VG • E/VS1 • IGI LG845615199

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG845615199

Diamond specifications and retailer prices

From $343 AUD
$241 USD
As of October 30, 2026
Save $1,302 AUD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,645 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG845615199 or 845615199. Listed at 11 retailers as of October 30, 2026, with prices from $343 to $1,645, a $1,302 spread on the same certified stone. Reve Diamonds lists it at $1,645. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845615199
Dimensions6.42 × 7.57 × 4.31 mm
L/W Ratio1.18
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
6.42 mm7.57 mm1.23 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845615199
Side View
Table 57.0%Crown 34.6°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 56.9%

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: $602 AUD|Low: $339 AUD|High: $1,676 AUD|Avg: $906 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 6$343 AUD
Retailer 8$417 AUD
Retailer 7$581 AUD
Retailer 1$602 AUD
Retailer 4$635 AUD
Retailer 2$841 AUD
Retailer 3$1,071 AUD
Retailer 9$1,144 AUD
Retailer 5$1,310 AUD
Retailer 10$1,542 AUD
Reve Diamonds$1,645 AUD

11 data points across 11 retailers

11 retailers$343 AUD to $1,645 AUD

A
Cheapest Retailer
-
$343 AUD
$241 USD
Final sale: no returns
A
Retailer 2
-
$417 AUD
£231 GBP
View
A
Retailer 3
-
$581 AUD
$408 USD
View
A
Retailer 4
-
$602 AUD
£333 GBP
View
B+
Retailer 5
-
$635 AUD
$446 USD
View
Retailer 6
-
$841 AUD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$1,071 AUD
$752 USD
View
B
Retailer 8
-
$1,144 AUD
$803 USD
View
B
Retailer 9
-
$1,310 AUD
$920 USD
View
B
Retailer 10
-
$1,542 AUD
£853 GBP
View
Most Expensive
B
Reve Diamonds
73A5127AF · Oct 30
$1,645 AUD
$1,155 USD
View
10 more retailers have this diamond
Prices start from $343 AUDSave up to $1,302 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
$343 AUD