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 $210 USD
As of October 27, 2026
Save $860 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,070 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 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 27, 2026, with prices from $210 to $1,070, a $860 spread on the same certified stone. Brilliant Earth lists it at $1,070. 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
Color
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 27
Current: $1,070 USD|Low: $210 USD|High: $1,080 USD|Avg: $593 USD
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 11$210 USD
Retailer 5$236 USD
Retailer 4$244 USD
Retailer 9$261 USD
Retailer 17$261 USD
Retailer 14$321 USD
Retailer 12$441 USD
Retailer 15$448 USD
Retailer 2$481 USD
Retailer 19$505 USD
Retailer 3$574 USD
Retailer 16$638 USD
Retailer 8$839 USD
Retailer 18$842 USD
Retailer 7$849 USD
Retailer 10$890 USD
Retailer 6$892 USD
Retailer 13$1,052 USD
Brilliant Earth$1,070 USD

14 data points across 19 retailers

19 retailers$210 USD to $1,070 USD

A
Cheapest Retailer
-
$210 USD
A
Retailer 2
-
$236 USD
View
Final sale: no returns
A
Retailer 3
-
$244 USD
View
A
Retailer 4
-
$261 USD
View
A
Retailer 5
-
$261 USD
View
A
Retailer 6
-
$321 USD
£253 GBP
View
A
Retailer 7
-
$441 USD
€420 EUR
View
A
Retailer 8
-
$448 USD
ZAR 7,243 ZAR
View
A
Retailer 9
-
$481 USD
£378 GBP
View
B+
Retailer 10
-
$505 USD
View
B+
Retailer 11
-
$574 USD
View
B+
Retailer 12
-
$638 USD
A$981 AUD
View
B
Retailer 13
-
$839 USD
View
B
Retailer 14
-
$842 USD
View
B
Retailer 15
-
$849 USD
SGD 1,147 SGD
View
B
Retailer 16
-
$890 USD
View
B
Retailer 17
-
$892 USD
View
B
Retailer 18
-
$1,052 USD
£828 GBP
View
Most Expensive
B
Brilliant Earth
22143047A · Oct 28
$1,070 USD
View
18 more retailers have this diamond
Prices start from $210 USDSave up to $860 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
$210 USD