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Heart|Lab Grown|IGI

1.23ct E IF Heart Lab Grown Diamond

VG • E/IF • IGI LG836696222

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836696222

Diamond specifications and retailer prices

From $585 AUD
£323 GBP
As of November 1, 2026
Save $1,835 AUD (76%) vs most expensive(unlock to see where)
14 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG836696222 or 836696222. Listed at 14 retailers as of October 31, 2026, with prices from $585 to $2,420, a $1,835 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836696222
Dimensions6.36 × 7.44 × 4.39 mm
L/W Ratio1.17
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
6.36 mm7.44 mm1.23 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836696222
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 59.0%

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: Nov 1
Current: $2,420 AUD|Low: $567 AUD|High: $3,374 AUD|Avg: $1,430 AUD|-28.3%
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
November 1, 2026
Retailer 2$585 AUD
Retailer 12$612 AUD
Retailer 8$776 AUD
Retailer 11$901 AUD
Retailer 6$922 AUD
Retailer 7$985 AUD
Retailer 10$1,183 AUD
Retailer 5$1,308 AUD
Retailer 9$1,392 AUD
Retailer 13$1,781 AUD
Retailer 3$1,843 AUD
Retailer 4$2,161 AUD
Retailer 14$2,213 AUD
Brilliant Earth$2,420 AUD

27 data points across 14 retailers

14 retailers$585 AUD to $2,420 AUD

A
Cheapest Retailer
-
$585 AUD
£323 GBP
A
Retailer 2
-
$612 AUD
$430 USD
View
Final sale: no returns
A
Retailer 3
-
$776 AUD
$545 USD
View
B+
Retailer 4
-
$901 AUD
$633 USD
View
B+
Retailer 5
-
$922 AUD
ZAR 10,459 ZAR
View
B+
Retailer 6
-
$985 AUD
£545 GBP
View
B+
Retailer 7
-
$1,183 AUD
$831 USD
View
B+
Retailer 8
-
$1,308 AUD
View
B+
Retailer 9
-
$1,392 AUD
$978 USD
View
B
Retailer 10
-
$1,781 AUD
View
B
Retailer 11
-
$1,843 AUD
$1,294 USD
View
B
Retailer 12
-
$2,161 AUD
£1,195 GBP
View
B
Retailer 13
-
$2,213 AUD
$1,555 USD
View
Most Expensive
B
Brilliant Earth
21696594A · Oct 31
$2,420 AUD
$1,700 USD
View
13 more retailers have this diamond
Prices start from $585 AUDSave up to $1,835 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
$585 AUD