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 $401 USD
£316 GBP
As of October 29, 2026
Save $1,969 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,370 USD at Brilliant Earth · As of October 28, 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 28, 2026, with prices from $401 to $2,370, a $1,969 spread on the same certified stone. Brilliant Earth lists it at $2,370. 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
Color
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: Oct 29
Current: $2,370 USD|Low: $398 USD|High: $2,370 USD|Avg: $1,010 USD
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
October 29, 2026
Retailer 7$401 USD
Retailer 6$416 USD
Retailer 11$535 USD
Retailer 3$615 USD
Retailer 9$647 USD
Retailer 10$665 USD
Retailer 14$828 USD
Retailer 8$919 USD
Retailer 12$1,158 USD
Retailer 5$1,258 USD
Retailer 13$1,266 USD
Retailer 2$1,518 USD
Retailer 4$1,525 USD
Brilliant Earth$2,370 USD

24 data points across 14 retailers

14 retailers$401 USD to $2,370 USD

A
Cheapest Retailer
-
$401 USD
£316 GBP
A
Retailer 2
-
$416 USD
View
Final sale: no returns
A
Retailer 3
-
$535 USD
View
B+
Retailer 4
-
$615 USD
View
B+
Retailer 5
-
$647 USD
ZAR 10,459 ZAR
View
B+
Retailer 6
-
$665 USD
£524 GBP
View
B+
Retailer 7
-
$828 USD
View
B+
Retailer 8
-
$919 USD
A$1,414 AUD
View
B
Retailer 9
-
$1,158 USD
View
B
Retailer 10
-
$1,258 USD
View
B
Retailer 11
-
$1,266 USD
A$1,947 AUD
View
Price last confirmed 21 days ago
B
Retailer 12
-
$1,518 USD
£1,195 GBP
View
B
Retailer 13
-
$1,525 USD
View
Most Expensive
B
Brilliant Earth
21696594A · Oct 28
$2,370 USD
View
13 more retailers have this diamond
Prices start from $401 USDSave up to $1,969 USD

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
$401 USD