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Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG830620399

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620399

Diamond specifications and retailer prices

From HK$1,852 HKD
$236 USD
As of October 30, 2026
Save HK$6,543 HKD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$8,395 HKD at Brilliant Earth · As of October 30, 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 LG830620399 or 830620399. Listed at 14 retailers as of October 30, 2026, with prices from HK$1,852 to HK$8,395, a HK$6,543 spread on the same certified stone. Brilliant Earth lists it at HK$8,395. 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
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620399
Dimensions6.79 × 7.35 × 4.19 mm
L/W Ratio1.08
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
6.79 mm7.35 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620399
Side View
Table 62.0%Crown 38.3°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 57.0%

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: HK$3,751 HKD|Low: HK$1,852 HKD|High: HK$8,250 HKD|Avg: HK$4,782 HKD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 2HK$1,852 HKD
Retailer 7HK$2,514 HKD
Retailer 8HK$3,460 HKD
Retailer 10HK$3,515 HKD
Retailer 11HK$3,518 HKD
Retailer 1HK$3,751 HKD
Retailer 12HK$4,503 HKD
Retailer 13HK$5,003 HKD
Retailer 6HK$6,606 HKD
Retailer 3HK$6,659 HKD
Retailer 4HK$6,983 HKD
Retailer 5HK$6,999 HKD
Retailer 9HK$8,250 HKD

6 data points across 13 retailers

14 retailersHK$1,852 HKD to HK$8,395 HKD

A
Cheapest Retailer
-
HK$1,852 HKD
$236 USD
Final sale: no returns
A
Retailer 2
-
HK$2,514 HKD
£252 GBP
View
A
Retailer 3
-
HK$3,460 HKD
€420 EUR
View
A
Retailer 4
-
HK$3,515 HKD
$448 USD
View
A
Retailer 5
-
HK$3,518 HKD
ZAR 7,243 ZAR
View
A
Retailer 6
-
HK$3,751 HKD
£376 GBP
View
B+
Retailer 7
-
HK$4,503 HKD
$574 USD
View
B+
Retailer 8
-
HK$5,003 HKD
A$981 AUD
View
B
Retailer 9
-
HK$6,606 HKD
$842 USD
View
B
Retailer 10
-
HK$6,659 HKD
SGD 1,147 SGD
View
B
Retailer 11
-
HK$6,983 HKD
$890 USD
View
B
Retailer 12
-
HK$6,999 HKD
$892 USD
View
B
Retailer 13
-
HK$8,250 HKD
£828 GBP
View
Most Expensive
B
Brilliant Earth
22311013A · Oct 30
HK$8,395 HKD
$1,070 USD
View
13 more retailers have this diamond
Prices start from HK$1,852 HKDSave up to HK$6,543 HKD

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
HK$1,852 HKD