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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 $428 NZD
$241 USD
As of October 30, 2026
Save $1,622 NZD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,050 NZD 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 $428 to $2,050, a $1,622 spread on the same certified stone. Reve Diamonds lists it at $2,050. 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: $1,334 NZD|Low: $422 NZD|High: $2,089 NZD|Avg: $1,129 NZD|-3.5%
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 5$428 NZD
Retailer 8$519 NZD
Retailer 6$724 NZD
Retailer 7$751 NZD
Retailer 3$791 NZD
Retailer 2$1,048 NZD
Retailer 1$1,334 NZD
Retailer 9$1,425 NZD
Retailer 4$1,632 NZD
Retailer 10$1,922 NZD
Reve Diamonds$2,050 NZD

11 data points across 11 retailers

11 retailers$428 NZD to $2,050 NZD

A
Cheapest Retailer
-
$428 NZD
$241 USD
Final sale: no returns
A
Retailer 2
-
$519 NZD
£231 GBP
View
A
Retailer 3
-
$724 NZD
$408 USD
View
A
Retailer 4
-
$751 NZD
£333 GBP
View
B+
Retailer 5
-
$791 NZD
$446 USD
View
Retailer 6
-
$1,048 NZD
A$909 AUD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$1,334 NZD
$752 USD
View
B
Retailer 8
-
$1,425 NZD
$803 USD
View
B
Retailer 9
-
$1,632 NZD
$920 USD
View
B
Retailer 10
-
$1,922 NZD
£853 GBP
View
Most Expensive
B
Reve Diamonds
73A5127AF · Oct 30
$2,050 NZD
$1,155 USD
View
10 more retailers have this diamond
Prices start from $428 NZDSave up to $1,622 NZD

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
$428 NZD